BNL 48724 Informal Report NATIONAL SYNCHROTRON LIGHT SOURCE

USER'S MANUAL:

GUIDE TO THE VUV AND X-RAY BEAMLINES

Fifth Edition

Edited by:

Nicholas F. Gmiir

April 1993

The National Synchrotron Light Source Department is supported by the Office of Basic Energy Sciences United States Department of Energy Washington, D.C.

Brookhaven National Laboratory Associated Universities. Inc.

Under Contract No. DE-AC02-76CH00016 with the United States Department of Energy MASTER DISCLAIMER

This report was prepared as an account of work sponsored by an agency of the United States Govern- ment. Neither the United States Government nor any agency thereof, nor any of their employees, nor any of their contractors, sub-contractors, or their employees, makes any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any in- formation, apparatus, product, or process disclosed, or represents that its use would not infringe private- ly owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency, contractor or subcontrac- tor thereof. The views and opinions of authors expressed herein do not necessarily slate or reflect those of the United States Government or any agency, contractor or subcontractor thereof. FOREWORD

The success of the National Synchrotron Light Source is based, in large part, on the size of the user community and the diversity of the scientific and technical disciplines represented by these users. As evidence of this success, the VUV Ring has just celebrated its 10th anniversary and the X-ray Ring will do the same in 1995. In order to enhance this success, the NSLS User's Manual: Guide to the VUV and X-Ray Beam lines - Fifth Edition, is being published. This Manual presents to Ihc scientific community-at-large the current and projected architeclure, capabilities and research programs of the various VUV and X-ray beamlincs. Also detailed is the research and computer equipment a General User can expect to find and use at each bcamline when working at the NSLS. The Manual is updated periodically in order to keep pace with the constant changes on these beamlincs. The editor wishes to thank the numerous PRT, IDT and NSLS personnel whose efforts have made this Manual possible. Companion documents, the NSLS Experimenter's Handbook and the NSLS Community Directory, are also available through the User Administration Office (516-282-4703).

-ill- Table of Contents

Foreword iii

Section A. Introduction Iniro/1 General Information Intro/3 A Word on the Writing of Beamline Descriptions Inno/3 Beamline Equipment Utilization for General Users Intro/4 Figure 1: Floor Plan of the National Synchrotron Light Source Experimental Area Intro/5 Table I: Primary Research Techniques of VUV and X-Ray Beamlines Intro/6 Table 2: Institutions Currently Participating in PRTs and IDTs at the NSLS Intro/7 Table 3: Source Parameters for the NSLS Insertion Devices Intro/8 Figure 2: Spectral Flux vs. Photon Energy for NSLS Bending Magnet and Insertion Device Sources Intro/8 Figure 3: Spectral Central Intensity vs. Photon Energy for NSLS Bending Magnet and Insertion Device Sources Intro/9 Figure 4: Spectral Brightness vs. Photon Energy for NSLS Bending Magnet and Insertion Device Sources Intro/9

Section B: Vacuum Ultraviolet .VUV/1 The Vacuum Ultraviolet (VUV) Storage Ring and Beamlines .VUV/3 VUV Beamline Descriptions - An Explanation .VUV/3 Table 4: VUV Storage Ring Parameters .VUV/4 Figure 5: Vacuum Ultraviolet Beamline Energy Ranges .VUV/5 VUV Boamline Descriptions U1A.-U16B

Section C: X-Ray XrJRAY/1 X-Ray Storage Ring and Beamlines XrRAY/3 X-Ray Beamline Descriptions - An Explanation XrRAY/3 Table 5: X-Ray Storage Ring Parameters X.-RAY/5 Figure 6: X-Ray Beamline Energy Ranges XrRAY/6 X-Ray Beamline Descriptions XJA.-X26C

-V- SECTION A:

INTRODUCTION

-Intro/1- General Information The following items are detailed in the Section A Introduction: an overall floor plan of the NSLS facility is given in Figure 1; a summary of the primary research areas covered by the various beamlines is given in Table 1; a listing of institutions currently participating in PRTs and IDTs is given in Table 2; a description of insertion device source parameters is given in Table 3 and is accompanied by three plots showing the flux, central intensity, and brightness vs. photon energy of the VUV and X-ray bending magnet as well as the insertion device sources - Figures 2, 3 and 4. In addition: Section B (VUV) consists of a listing of VUV storage ring parameters in Table 4, a summary of all VUV beamline energy ranges in Figure 5, and descriptions of the individual VUV beamlines U1A through U16B; Section C (X-Ray) consists of a listing of X-Ray storage ring parameters in Table 5, a summary of all X-Ray beamline energy ranges in Figure 6, and descriptions of the individual X-Ray beam- lines XIA through X26C. The reader will note that all of the beamline descriptions in Sections B (VUV) and C (X-Ray) are dated. The reason is that beamline configurations are constantly changing. Potential users should not necessarily assume that the beamline in which they are interested corresponds exactly to the description given in this manual. They should contact the beamline Spokespersons or Local Contacls for further in-depth information. Individuals wishing to submit research proposals to the NSLS should contact:

User Administration Office National Synchrotron Light Source Building 725B, Room 2-100 Brookhaven National Laboratory Upton, NY 11973 USA Tel: (516)282-4703 FAX: (516)282-7206

A Word on the Writing of Beamline Descriptions Great care is exercised to ensure the accuracy and the up-to-date nature of the information presented in each of the beamline descriptions. The writing of the descriptions is a strongly collabora- tive effort between the editor, Nicholas Gmiir, and the Spokesperson or Local Contact of each PRTADT. Emphasis is placed on succinctness as well as on uniformity of presentation and terminol- ogy. Also encouraged is the need to demonstrate the unique qualities of each beamline. Signed and dated approval by the PRT/IDT is required for inclusion of each beamline description in this User Manual.

-Intro/3- BKAMLINK EQUIPMENT UTILIZATION FOR GENERAL USERS

as excerpted from the NSLS Policies and Procedures Document - Volume I, September 1988.

PR 1711)1 Equipment Availability to General Users

The capitalization strategy for the NSLS, i.e., the PRT/IDT system, is being carried over into operations of the facility. Every beamline made available to the General User must be capable of per- forming the generic class of experiments for which it was approved by the Program Advisory Commit- tee (PAC). Unless the government funding agencies and industrial laboratories arc to provide duplicate or multiple end stations for each beamline, a significant investment, the equipment provided to the PRT/IDTs must be made available to the widest possible community. PRT/IDTs must, however, be allowed to exclude equipment from general use when its function can be compromised or when the equipment itself is the embodiment of the science of the PRT/IDT member. The NSLS must provide a mechanism to protect innovation and scientific uniqueness of equipment by providing those who invest in technically innovative apparatus the exclusive use of such equipment for some period.

General User Technical Support

The PRT/IDT system as operating at the NSLS dictates that technical support for General Users who arc performing experiments at a PRT/IDT beamlinc be provided by the PRT/IDT. It is beyond the resources of the facility to provide technical support for non-facility beamlines. However, it is also beyond the resources of the PRT/IDTs to provide technical support to the General User at a level above that provided to members of the PRT/IDT. The General User must be informed that: 1. The beamlinc staff must support the General User community for the percentage of time agreed to by the PRT/IDT staff and the NSLS. 2. Beamlinc personnel arc not obliged to staff the bcamline beyond the level normally available to PRT/IDT members. 3. General Users must arrange lo have their personnel trained and certified on a particular beamline. 4. It is the responsibility of the beamlinc staff to conduct such training. 5. The schedule and type of training is at the discretion of the beamline personnel. 6. Approval for a General User to operate a beamline without beamline personnel present is the decision of the bcamline representatives. 7. The beamline personnel can refuse continued training to General Users who fail to become certified.

IMPORTANT

The individual beamlinc Experimental Apparatus and Computer System Hardware and Software sections contained in this document reflect what is available to General Users. Additional equipment may be made available by special arrangement with the PRT/IDT representatives.

-Intro/4- Material Science (#146)

Crystal Alignment (#148)—y Food Vending Lounge WASTE COLLECTION^ \ „ (#129) i AREA (#150) "^ FLOOR MANAGER / _ To Basement, Bldg. 535 Clean Room r~ (User Machine Shop) Chemistry (#149) (#128) (Vacuum Group) User Goniometer Storage, X1-X15 (#151 Op.Co./Cont.Rm. Staff (#125) Safety & Env. Prot. (#124) ROLL-UP DOOR (LN/GASSES) NSLS SAFETY X#126 & 127) Laboratory (#152 — User Storage Biology User Lounge/ (#153,154) L'iDrary ROLL-UP DOOR (RECEIVING)

User Bicycle Rack

User Set—Up Area

Triangular Lab (#117)

User Lounge

= Radiation Badge Boards M= Men's Restroom W= Women's Restroom USER — = Insertion Device LOBBY Beamline ADMINISTRATION 2nd FLOOR (#2-100) MAIN ENTRANCE

Figure 1. Floor plan of the National Synchrotron Light Source experimental area. Table 1: Primary Research Techniques of VUV and X-Ray Beamlines

Absorption Spectroscopy: U1A, U3C, U4A, U4B, U7A, U7B, U8A, U8B, U12A, U13UA, U14A, U15, U16A, U16B, X9A, X9B, X10C, XI1A, XI IB, X15B, X18B, X19A, X23A2, X23B

Circular Dichroism: U4B, U9B

High Pressure Physics: U2B, U4IR, X17B1, X17C

High Q-Resolution Scattering: X6B, X10A, X10B, X14A, X16B, X16C, X18A, X17B1, X20A, X20B, X20C, X22B, X22C, X23B, X25 Imaging: -Medical X17B1, X17B2 - Tomography X2B, X17B1, X26C - X-Ray Microprobe X17B1, X26A, X26C - X-Ray Microscopy/Holography XIA - X-Ray Topography X19C, X23A3

Infrared Spectroscopy: U2B, U4IR

Lithography U13UB

Nuclear Physics: X5

Photoemission Spectroscopy : U1A, U3C, U4A, U4B, U5U, U7A, U7B, U8A, U8B, U12A,

U12B, U13UA, U14A, U15, U16A, U16B, X1B, X8A, X24C

Photoionization: U11.X8A, X24A

Protein Crystallography: X4A, X4C, X8C, X12B, X12C, X26C

Radiometry: U3A

Small Angle Scattering: - Biology X9B, X12B - Materials Science X2A, X3A2, X10A, X23A3 Small Molecule Crystallography: -Powder X3B1, X7A, X17B1, X17C - Single Crystal X3A1, X3A2, X7B, X10A, X10B, X14A, X23B

Standing Waves: X3B1, X15A, X24A

Surface Scattering/X-ray Reflectivity: X3B2, X10A, X16A, X18A, X18B, X19C, X20A, X20C, X22A, X22C

Time Resolved Fluorescence: U9B

UV Reflectometry: U3A, X24C

X-Ray Emission Spectroscopy: X1B, X24A

March 1993

-Intro/6- Table 2: Institutions Currently ParUcipating in PRTs and IDTs at the NSLS Universities Corporations Adelphi University Air Products Alfred University AlliedSignal Brandeis University Amoco Brooklyn College of CUNY AT&Y Bell Labs Carnegie Institution (Washington) B.P. America Case Western University Chevron Cornell University Dow Chemical Drexel University Dupont Fairleigh Dickinson University Eastman Kodak Fritz Haber Institute (Berlin) EG&G/EM Georgia Institute of Technology Exxon Harvard University GCA Tropel Howard Hughes Medical Institute Grumman Illinois Institute of Technology Hoechst-Celanese Johns Hopkins University IBM Massachusetts Institute of Technology Litton/Itek Optical Systems National Biostructures Research Resource Mobil North Carolina State University Optical Research Associates North Shore University Hospital Talondic Research Associates Northwestern University UOP/Union Carbide Notre Dame University Palo Alto Veteran's Administration Hospital Purdue University Government Institutions Rutgers University Argonne National Laboratory Stanford University Brookhaven National Laboratory State University of New York: Harvard/Smithsonian Astrophysical Observatory Buffalo Lawrence Berkeley Laboratory Stony Brook Lawrence Livermore National Laboratory Temple University Los Alamos National Laboratory Universities of: National Institute of Standards and Technology California Naval Research Laboratory Chicago Oak Ridge National Laboratory Connecticut Oak Ridge Institute for Science and Education Hawaii Sandia National Laboratory Helsinki Stanford Synchrotron Radiation Laboratory Illinois Superconducting Super Collider Kentucky U.S. Army Research Laboratory Michigan Missouri New Mexico Foreign Institutions Oregon Australian Nuclear Science and Technology Organization Pennsylvania European Synchrotron Radiation Facility Pittsburgh KFA Jullich Tennessee Swedish Research Council Texas Washington Wisconsin Based on informaiion available at time of publication. March 1993

-Intro/7- Table 3: Source Parameters for the NSLS Insertion Devices (March 1993) Parameters U5U U13U XI X13 X17 X21/X25 Type NdFeB NdFeB SmCo SmCo Fe SmCo hybrid hybrid hybrid hybrid supercond. hybrid Period Length -X (cm) 7.5 10 8 8 17.4 12 Gap(cm) 3.4-12.0 3.15-12.0 3.3-9.8 3.3-9.8 3.2(fixed) 2.4-12 Magnetic Field-B(T) 0.45-0.05 0.76-0.07 0.31-0.03 0.31-0.03 5poles @ 5.2T 1.1-0.08 2 poles @ 2.6T Deflection Param.-K 3.2-0.4 7.2-0.6 2.3-0.2 2.3-0.2 84 12.3-0.9 Number of Poles-N 55 45 69 20 7 27 Energy Range 11.5-65 eV 2.0-45 eV 0.22-0.78 keV 0.22-0.78 keV 6.9-376 eV (Undulator Fund.) Wiggler Characteristic - 280 eV - — 23.1 keV 4.88 keV Energy-E (for 5.2T poles) Usable Energy 11.5-325 eV 2.0-1200 eV 3.22-3.90 keV 0.22-3.90 keV 10-100 keV 4-40 keV Range N.B.: the values listed above describe the properties of the various sources (not the associated beam- lines); see the individual beamline descriptions for actual operating conditions. Tabular information for insertion devices compiled by Steve Hulbert, NSLS. VUV Ring Energy = 745 MeV; X-ray Ring Energy = 2.584 GeV 2 Ec = O.665E [GeV]Bo[T] Usable Energy Range = hVj(min) - hv,-(max) for undulators; approx. 0.5E - 5E for wigglers Deflection Parameter K = 0.934X [cm]B [TJ X-ray: hv [eV] = 6340.8n/(X [cm] (1 + K2/2)) VUV: hvJeV] = 527.07n/(A. Tern] (1 + K2/2))

VUV, l=800mA — XRAY, l=250mA

10 10 10J 10* 105 Photon Energy [eV] Figure 2: Spectral flux as a function of photon energy for the bending magnets and all operating undu- lators and wigglers at the NSLS. The wiggler and bending magnet flux curves represent the vertically- integrated flux within a 5 mrad horizontal collection angle. Each undulator curve is the locus of narrow peaks of radiation, tuned by altering the undulator magnetic strength parameter K over the ranges listed in Table 1, and represents the envelope of the first, third, and fifth harmonics. All of the curves correspond to standard injection current values for each storage ring: VUV=800 mA; XRAY=250 mA.

-Intro/8- 10' 1 * '1

U5U vuv, =BOOmA X1 XRAY, l=250mA '

: U13U V \ \ /X21.X25 t \

U13U ^.,- — <• XRBM 10" - ^-" \x 1 \ .g-10' 1 \ c ^^^^ \ \ \

/\ >t i; g 1O VUVBM

o \ 1 1 101' 10' 10-5 10* 1Oa Photon energy (eV]

Figure 3: Spectral central intensity as a function of photon energy for the bending magnets and all operating undulators and wigglers at the NSLS. Each undulator curve is the locus of narrow peaks cf radiation, tuned by altering the undulator magnetic strength parameter K over the ranges listed in Table 1, and represents the envelope of the first, third, and fifth harmonics. All of the curves correspond to standard injection current values for each storage ring: VUV=800 mA; XRAY=250 mA.

10 i 'I i XI vuv, =800mA — XRAY, l=250mA ' 17 —^\ X13 ^\ \ X21.X25 MO16 ^--- — -^ - r U13U \V^^"^ • 15 -10 r\ - N \ \ U •* "" "* -^^"^ \ •s io XRBM \ \ X17 . \ 13 \ \ U)3U •Oc) \ \ CD ^-' VUVBM \\ 1012 w 101 105 10" Photon energy [eV]

Figure 4: Spectral brightness as a function of photon energy for the bending magnets and all operating undulators and wigglers at the NSLS. Each undulator curve is the locus of narrow peaks of radiation, tuned by altering the undulator magnetic strength parameter K over the ranges listed in Table 1, and represents the envelope of the first, third, and fifth harmonics. All of the curves correspond to standard injection current values for each storage ring: VUV=800 mA; XRAY=250 mA.

-Intro/9- SECTION B:

VACUUM ULTRAVIOLET

-VUV/1- The Vacuum Ultraviolet (VUV) Storage Ring and Beam lines The following items are detailed in this section:

parameters describing the VUV ring are listed in Table 4; a bar graph indicating the energy ranges used in research at the VUV beamlines (Figure 5); single page descriptions for the VUV beamlines U1A through U16B.

Further information regarding the VUV ring and associated beamlines may be obtained by contacting:

Dr. Roger Klaffky VUV Research Operations Manager National Synchrotron Light Source Building 725D Brookhaven National Laboratory Upton, NY 11973 USA Tel. (516)282-4974 FAX (516)282-3238

VUV Beamline Descriptions • An Explanation Each beamline description is dated to indicate when the described configuration existed. These configurations are expected to change over time. A number of points are explained below.

1. Operational Status: a. Operational - beamline is actively used in research; b. Commissioning - beamline is built but is being run for the sole purpose of detecting flaws in the configuration prior to Operational mode; c. Construction - beamline is being assembled; d. Planned - bear-iline design is completed but construction has not yet begun; e. Conceptual - pre-design stage. 2. Local Contact: individual(s) usually available at the beamline, their telephone number and the location of that number. 3. Spokesperson: individual(s) responsible for the beamline research program, their telephone number and the location of that number. 4. Research Program: describes only general categories of research; specifics should be discussed with the beamline personnel. 5. Optical Configuration: listed in the order in which components appear going downstream along the beamline. 6. Experimental Apparatus: equipment available to General Users. 7. Computer System Hardware and Software: equipment available to General Users. 8. The following VUV beamlines are not described in this section and are used for NSLS R&D and beamline diagnostics: U3B, U5, U14B. 9. Abbreviations: ARUPS = angle-resolved ultraviolet photoemission spectroscopy; NEXAFS = near-edge extended X-ray absorption fine structure; SEXAFS = surface EXAFS; SXMCD = soft X-ray magnetic circular dichroism; XPS = X-ray photoemission spectroscopy.

-VUV/3- Table 4: VUV Storage Ring Parameters as of March 1993 Parameters VUV Storage Ring Normal Operating Energy 0.745 GeV Maximum Operating Current (multibunch ops.)1.0amp(l.l x 1012e') Circumference 51.0 meters Number of Beam Ports on Dipoles 17 Number of Insertion Devices 2 Maximum Length of Insertion Devices -2.5 meters 25.3 A (486 eV) w 1.28 Tesla (1.91 meters) B(p) 170.2 nanoseconds Electron Orbital Period x =x ~ 17 msec; x= 9 msec Damping Times 200 mui @ 200 mA Touschek lifetime (dependent on current per bunch and vertical emittance) Separated Function, Quad, Doublets Lattice Structure (Chasman-Green) 4 Number of Superperiods 8 Bending (1.5 meters each) Magnet Complement 24 Quadrupole (0.3 meters each) 12 Sextupole (0.2 meters each)

Nominal Tunes (vx, v ) 3.14, 1.23 Momentum Compaction 0.023 R.F. Frequency 52.887 MHz Radiated Power 14.7 kW/amp of Beam R.F. Peak Voltage (typical) 100 kV Design R.F. Power 50 kW v (Synchrotron Tune) 0.002 Natural Energy Spread (GJE) 4.7 x 10"4 (I < 20 mA) Natural Bunch Length (2a) 7.6 cm (I < 20 mA) Number of RF Buckets 9 Typical Bunch Mode 7 7 Horizontal Damped Emittance (ex) 1.38 x 10" meter-radian Vertical Damped Emittance (e ) > 3.5 x 10 meter-radian (2.8 x 10"9 in normal ops.)*** Power per Horizontal milliradian (1A) 2.3 Watts Arc Source Parameters

Betatron function (Px>Py) 1.18 to 2.25 m, 10.26 to 14.21 m Dispersion function (i\x>\-) 0.500 to 0.062 m, 0.743 to 0.093 m x>\- 2 -0.046 to 1.087, 3.18 to-0.96 V 1 1 0.738 to 0.970 m' ,1.083 to 0.135 m' *•* Source size (ox»G ) 536 to 568 pm, >60 to >70 pm (170-200 \m in normal ops.) *** Source divergence (a -,a -) 686 to 373 urad, 19.5 to 6.9 (irad (55-20 juad in normal ops.) Insertion Device Parameters Betatron function (P »P ) 11.1m, 5.84 m X V *** Source size (crx,45 |im (130 pm in normal ops.) Source divergence (a »,a -) 112 jirad, >7.7 urad (22 prad in normal ops.) *) Lifetime variable up to -350 minutes depending on use cf bunch lengthening 211 MHz RF cavity. **) Current and RF voltage dependent. ***) e is adjustable, in normal ops., typically a = 200 Jim (130 (im in center of insertion straights) to provide a compromise between small beamsize and long lifetime. Sources of Data: NSLS Parameters, 1983, A. van Steenbergen; Synchrotron Light Source Data Book - Ver. 2, 1990, J. Murphy (BNL 42333r); 1993 information updates by N. Fewell, S. Hulbert and S. Kra- mer (NSLS).

-VUV/4- Figure 5: NSLS Vacuum Ultraviolet Beamline Energy Ranges (eV)

BEAM LINE

-4 -j—4 4i-r I -- 4-4 -t +4fU

March 1993

-VUV/5- Beamline: U1A Ring: VUV Operational Status: Operational

Participating Institutions: Exxon Research and Engineering Local Contact: Brian DeVries (516)282-5206, 5501 @ BNL Spokesperson: Paul Stevens (908)730-2584 @ Exxon Research Program: SEXAFS, ARUPS, XPS

Spectra] Grating Grating ToJal Angular Range Type Radius Resolution Spot Size Acceptance (A) (grooves/mm) (m) (AX. in A) (mm) (mradians) 8-46 1200 5 <0.02 2.0Hx 1.0V 15.0H x 1.0V 8-89 800 3.71 <0.04 2.0Hx 1.0V 15.0H x 1.0V 65-500 600 2 ~<0.09 2.0H x 1.0V 15.0H x 1.0V

Optical Configuration a) M0 Mirror Bent flat Zerodur mirror coated with 1000 A of platinum, horizontal collection of beam; 3° angle of incidence: iocated 2.8 meters from source. b) Monochrom \tor Extended range grasshopper monochromator, scans in accordance to Rowland circle geometry with fixed exit geometry; consists of a gold-coated bent elliptical mirror, a Codling mirror/entrance slit combination, three spherical gold-coated gratings interchangeable in situ in UHV, and an exit slit; the entrance and exit slits allow adjustment of monochromator resolution independent of beam source size; exit slit located 5.6 meters from source. c) Refocusing Mirror Bent cylindrical aluminum mirror coated with electroless nickel and 1000 A of gold, horizontal and vertical focusing of beam; 2.5° angle of incidence; located 7.8 meters from source. Experimental Apparatus Ultra-high vacuum sample chamber configured for photoemission, photoabsorption and surface characterization experiments. Computer System Hardware and Software Ul A is supported by a VAX/VMS system interfaced to a standard CAMAC bus using a KS-3922 controller. A software package SPECTR provides required experimental control and plotting needs.

March 11, 1993

-U1A- Beamline: U1B Ring: VUV Operational Status: Conceptual

Participating Institutions: Exxon Research and Engineering Local Contact: Keng Liang (908)730-3032 @ Exxon (201)730-2382 @ Exxon Spokesperson: Keng Liang Research Program:

Monochromator Toroidal grating monochromator - XPS spectrometer.

NO DETAILS CURRENTLY AVAILABLE

March 11, 1993

-U1B- Beamline: U2B Ring: vuv Operational Status: Operational

Participating Institutions: NSLS, Camegie Geophysical Institute, Grumman Corporate Research Center, SUNY at Stony Brook - Physics Dept. Local Contact: Gwyn Williams (516)282-7529 @ BNL e-mail: [email protected] Spokesperson: Larry Carr (516)346-9073 @ Grumman Research Program: High pressure, pump-probe, high Tc absorption.

Total Frequency Brightness Spot Size Angular Range Resolution - compared to @ 1000 cm'1 Acceptance (cmn) Instrument (cm"1) a black body (cm) (mradians) 400-10,000 Michelson 0.05 100- 1000 0.1H x 0.1V 20H x 10V Interferometer

Optical Configuration Water cooled plane Cu mirror. Beam is focused and extracted through a KBr window. Remainder of beamline purged with dry nitrogen. Experimental Apparatus None available. Users provide their own sample cells. Computer System Hardware and Software Nicolet 740 interferometer controlled by a dedicated Nicolet workstation for fast Fourier transforms. Data can be transferred to IBM PC (not provided).

December 22, 1992

-U2B- Beamline: U3A Ring: VUV Operational Status: Upgrade Underway Operational by September '93

Participating Institutions: Los Alamos National Laboratory, EG&G/EM, Harvard/Smithsonian Astrophysical Observatory Local Contact: Warren Towell (516)282-7245 @ BNL Spokesperson: Richard Blake (505)667-7369 @ LANL e-mail: xlab.:081042 bnlx8a::blake Research Program: Time-resolved and DC radiometry, reflectometry for optical constants

Tolal Horizontal Energy Resolving Expected Angular Range Disperser Type Power Flux Spot Size Acceptance (eV) (E/AE) (photons/sec) (mm) (mradians) White ... White 10H x 15V 10 Beam Beam 50-200 Multilayer-Plane Gratings 100- 1000 -1012 H=part.focused 10 70 - 1000 Layered Synthetic 3-200 -1012 V=unfocused 10 Microstructure(LS M) 800 - 1200 Beryl Crystals 1000 1010 10 100 - 1500 Plane Mirrors -1 -3 >1012 10 with Filters

Optical Configuration a) Mirror (M ) Bent float glass mirror coated with platinum, collects a 10 mradian horizontal fan of radiation and focuses at radiometry calibration chamber; no vertical focusing; 2° grazing angle of incidence; located 3.3 meters from source. b) Monochromator The mirror is followed by a differential pumping section, a filter and monochromator chamber and three radiometry calibration chambers in series. Experimental Apparatus Radiometry chambers allowing positioning of samples; differential pumping stations and a posi- tioning (able are available at certain limes for use by experimenters calibrating "systems". Computer System Hardware and Software a) MicroVax and PC. b) A 7854 oscilloscope, calibrated detectors, and a PC computer with ASYST are available by spe- cial arrangement witn the Spokesperson. These permit time resolved calibrations of detectors and systems.

February 8, 1993

-U3A- Beamline: U3C Ring: VUV Operational Status: Operational

Participating Institutions: Los Alamos National Laboratory, Sandia National Laboratory Local Contact: Robert Blyth (516)282-5503 @ BNL Spokesperson: Roger Bartlett (505)667-5923 @ Los Alamos National Laboratory Al Arko (505)665-0758 @ Los Alamos National Laboratory e-mail: [email protected] Research Program: Photoelectron spectroscopy and calibration of experimental systems and detectors

Total Horizontal Energy Grating Angular Range Grating Type Radius of Resolution Flux Acceptance (eV) (grooves/mm) Curvature (m) (AX in A) (photons/sec) (mradians) 36 - 320 1200 2 0.09 Dependent 10 180 - 1000 1200 3.7 0.048 on 10 280 - 1200 1200 5 0.036 Resolution 10 Optical Configuration a) Mirror (MQ) Bent float glass mirror coated with platinum, collects horizontal fan of radiation and focuses with 1:1 magnification at monochromator exit slit (S~); 2° grazing angle of incidence; located 3.3 meters from source. b) Monochromator Extended range grasshopper monochromator, fixed exit geometry. 1) Mirror (M,) Gold coated bent elliptical mirror, collects 1 mradian (vertical) of radiation and focuses at entrance slit (S.) with 7:1 demagnification; 1° grazing angle of incidence; located 5.5 meters from source. 2) Mirror/Slit (M,/Sj) Codling mirror/slit combination which directs beam onto one of three gratings; located 6.0 meters from source. 3) Gratings Three interchangeable (in situ in UHV) spherical gold coated glass gratings available, holographically formed and ion etched; located 6.1 meters from source. c) Mirror (M3) Gold coated bent cylinder refocusing glass mirror, integrated adjustment of focal point and spotsize to accomodate various beam line geometries; located 7.5 meters from source. d) Chamber Diagnostic chamber with filters and I monitor. Experimental Apparatus The above optical system and monochromator represent the experimental apparatus on U3C. This is one of the few general purpose beamlines at the NSLS providing a tunable, monochromatic beam with easy access for a wide variety of user end stations. In addition to the above, two differential pumping sections including additional pumping sections, surface analysis systems, atomic and molecular spectroscopy equipment, and a mirror/metal-multilayer characterization system and polarimeter may be made available by arrangement with the Spokesperson of the PRT. An angle-resolved photoelectron spectrometer which includes a sample preparation chamber and full transfer capability may be made available by special arrangement with the PRT members. Computer System Hardware and Software Micro-VAXI1 computer using VAX/VMS operating system with CAMAC modules for beam line automation and data collection.

January 25, 1993

-U3C- Beamline: U4A Ring: VUV Operational Status: Operational

Participating Institutions: AT&T Bell Labs, U. of Oregon Local Contact: Jack Rowe (516)282-5504 @ BNL (908)582-5878 @ AT&T Bell Labs Spokesperson: Gunther Wertheim (908)5824958 @ AT&T Bell Labs e-mail: [email protected] Research Program: ARUPS of solids and surfaces, high resolution core-level photoemis- sion, total yield absorption

Energy Grating Flux Spot Size Total Range Type Resolution (photons/sec @ - focused Angular Acceptance (eV) (grooves/mm) (AXA) 0.1% bw) (mm) (mradians) 50 - 250 2400 (Gl) 1 x 10"3 0.43 x 1010 2.0H x 0.5V 22.5H x 6.0V (250 m A/750 MeV) 20- 100 822 (G2) 1 x 10'3 1.7 x 101() 2.0H x 0.5V 22.5H x 6.0V (250 m A/750 MeV) 8 -40 288 (G3) 1 x 10"3 1.7 x 1010 2.0H x 0.5V 22.5H x 6.0V (250 mA/750 MeV) Optical Configuration a) Mirror No. 1 Gold coated fused quartz ellipsoidal mirror; 51 mm x 152 mm x 18 mm deep; operates at UHV; images 3135 mm downstream from mirror, magnifies by 1.5; 4.27° grazing angle of incidence; adjustable with three point linear (0.01 mm increments) and one rotational (1 mradian increments) mounts about vertical axis; located 2015 mm from the source. b) Monochromator Six meter toroidal grating monochromator with three grating types interchangeable in UHV under normal operating conditions; entrance and exit Brookhaven-design slits adjustable from 20-1500 \im; zero order angle of incidence is 80° for all gratings; gratings are aberration compensated holographic quartz type, Gl is platinum coated, G2 + G3 are gold plated; located 7 meters from the source. c) Mirror No. 2 Gold coated fused quartz ellipsoidal mirror; 76 mm x 102 mm x 18 mm deep; input focal length of 1800 mm from monochromator exit; focus to sample position 0.6 meters downstream; grazing angle of incidence is 5.8°; same adjustments as Mirror No. 1; located 12.5 meters from the source. Experimental Apparatus The beamline has two sample chambers in series. (1) An ARUPS station with movable 50 mm electron analyzer and (2) a high resolution core-level photoemission station with fixed 100 mm electron analyzer at 45° from the photon source. Individual users may attach their own chamber by removing the massive ARUPS end station. Computer System Hardware and Software The two stations use separate data acquisition systems. The ARUPS chamber has a '286 PC run- ning MS-DOS, with both 360K and 1.2M 5.25" floppy drives and 40M hard disk. The core-level system has an AT&T PC6300 running VENIX (a UNIX clone), with 360K floppy and 40M hard disk. Dot matrix printers provide graphic hard copy. Ethernet links are planned for both machines.

January 21, 1993

-U4A- Beamline: U4B Ring: VUV Operational Status: Operational

Participating Institutions: AT&T Bell Labs Local Contact: C.T. Chen (516)282-7290 @ BNL George Meigs (908)582-3863 @ Bell Labs Spokesperson: C.T. Chen (908)582-6030 @ Bell Labs e-mail: [email protected] Research Program: Soft X-ray photoemission spectroscopy, NEXAFS, SXMCD

Total Energy Grating Flux Angular Range Type Resolution (phot./sec./ Spot Size Acceptance (eV) (lines/mm) (VAfc) A/0.1% bw) (mm) (mradians) 200-600 600 1000 - 10,000 4xlOU 7H (focused) 15H x 1.5V 400 - 1200 1200 1000 - 10,000 0.5 - 5 x 10lu 3V (unfocused)

Optical Configuration Monochromator A spherical version of the cylindrical element monochromalor (CEM) design. This monochromator employs two spherical mirrors and a spherical grating. a) Horizontally Focusing Mirror (HFM) Spherical platinum coated Zerodur mirror; focuses source horizontally at the sample position (14.8 meters from source); incident angle is 87°; located 3.2 meters from the source. b) Vertically Focusing Mirror (VFM) Spherical platinum coated Zerodur mirror; focuses the source vertically onto the entrance slit of the monochromator (located 2.5 meters from VFM); incident angle is 87.5°; located 3.84 meters from the source. c) Gratings Spherical gratings made of diffuse silica coated with gold; both the 600 I/mm grating and the 1200 I/mm grating were laminar type holographically ruled and ion etched; diffract and focus vertically onto the moveable exit slit of the monochromator; the wavelength scanning mechanism is a simple sine drive type; zero order incident angle is 87°; located 10.6 meters from the source. d) Refocusing Optics Toroidal platinum coated SiO mirror; focuses the first sample position (14.8 meters from source) to the second sample position (20.8 meters from source) with spot size of -2 x 2 mm2. Experimental Apparatus General purpose UHV chamber for high resolution measurements on solid samples. Computer System Hardware and Software MS-DOS type PC; custom written software for driving the monochromator (grating and the exit slit).

January 25, 1993

-U4B- Beamline: U4IR Ring: VUV Operational Status: Operational

Participating Institutions: NSLS, AT&T Bell Labs, Exxon, Farleigh Dickinson U. Local Contact: Gwyn Williams (516)282-3634, 7529 @ BNL e-mail: [email protected] Spokesperson: Gwyn Williams Research Program: Vibrational spectroscopy of molecules on surfaces, absorption of high T superconductors, fast detectors, high resolution gas absorp- tion

Total Frequency Brightness Spot Size Angular Range Resolution - compared to - flO diffraction Acceptance (cmn) Instrument (cm'1) a black body limited (cm) (mradians) 10-4000 Michelson 0.2 100- 1000 0.13H x 0.13V 90H x 90V Interferometer

1 -20 Wavefront Dividing <0.01 1000 1.0H x 1.0V 90Hx90V Interferometer

Optical Configuration Mirror System Water-cooled silicon carbide beam extraction; beam is steered and focused by a combination of ellipsoidal and planar mirrors to provide a 1:1 image of the source on a platform on the mezzan- ine floor above beam lines Ul, U2 and U3. Beam passes through an interchangeable window (UHV up to this point) and continues through rough vacuum into the instrumentation listed in the above table. Experimental Apparatus UHV surface science chamber and absorption cell, liquid He bolometers, CuGe detector. Computer System Hardware and Software Nicolet 20F and 60SX interferometer controlled by a dedicated Nicolet data acquisition system for fast Fourier transforms, etc. Wavefront dividing interferometer instrumentation rim by an IBM PC. Nicolet data can be transferred to IBM PC which has 3.5" and 5.25" floppy drives.

December 22, 1992

-U4IR- Beamline: U5U Ring: VUV • Operational Status: Operational

Insertion Device Team: Brookhaven National Laboratory - Physics Department Local Contact: Peter Johnson (:!6)282-3705, 5505 @ BNL e-mail: [email protected] Spokesperson: Peter Johnson Research Program: Spin polarized angle-resolved ultraviolet photoemission

Total Horizontal Energy Grating Included Flux Angular Range Type Angle Resolution (photons/sec/ Acceptance (eV) Source (grooves/mm) (degrees) (AE/E) A/0.1% bw) (mradians) 20 - 120 VUV 822 150° 1 x 10"3 1014 1 Undulator - 27.5 periods - 7.5 cm per.

Optical Configuration a) Mirror No. 1 Gold-coated, water-cooled, cylindrical mirror, directs beam toward entrance slit; angle of incidence is 9°; located 8 meters from center of undulator. b) Monochromator Six meter toroidal grating monochromator with input and output slits; zero order angle of incidence is 80°. c) Mirror No. 2 Bent glass mirror focusing beam from exit slit into experimental chamber. Experimental Apparatus Surface science chamber located 10 meters from center of undulator; LEED/Auger and spin polar- ized angle resolved photoemission facilities. Computer System Hardware and Software IBM PC/XT driving CAMAC interface crate.

February 2, 1993

-U5U- Beamline: U7A Ring: VUV Operational Status: Operational

Participating Institutions: BNL - Physics Department, NSLS Local Contact: Francis Loeb (516)282-5507, 2092 @ BNL Mark Ruckman (516)282-3515 @ BNL e-mail: [email protected] Spokesperson: Myron Strongin (516)782-3763 @ BNL Research Program: Photoemission, SEXAFS

Total Horizontal Energy Grating Spot Size Angular Range Type Resolution Flux - unfocused Acceptance (eV) (grooves/mm) (AE/E) (photons/sec/A/mrad) (mm) (mradians) 300- 1000 1000 <1 x 10'3 1.0 x 1011 7.0H x 2.0V 2to28H 120 - -400 400 <1 x 10'3 3 x 1010 7.0H x 2.0V 2to28H

Optical Configuration a) Mirror 1:1 focusing aluminum gold coated toroidal mirror; focuses beam onto fixed entrance slit of monochromator; size is 120 mm x 240 mm x 50 mm; sagittal radius is 152 mm and meridional radius is 42,230 mm; angle of incidence is 87°; located 2.47 meters from the source. b) Monochromator Toroidal grating monochromator; gratings interchangeable in UHV; laminar etched quartz gold coated gratings; grating focuses beam onto exit slit in inside order; grating angle of incidence at zero order is 3°, sagittal radius is 73.9 mm, meridional radius is 66,160 mm; exit slit distance adjustable between 11,370 - 12,370 mm from source; monochromator located 6.77 meters from the source. Experimental Apparatus Ultra-high vacuum sample chamber having manipulator with xyz movement and z-axis rotation; 100 mm radius hemispherical analyzer; Cu mesh grid for Io calibration; no differential pumping. Computer System Hardware and Software IBM PC-AT computer, UNIX operating system, 40 MB hard disk, 640 K RAM, 360 K floppy drive. Real time data storage on hard disk, data output is to floppy diskette.

February 10, 1993

-U7A- Beamline: U7B Ring: VUV Operational Status: Operational

Participating Institutions: BNL - Physics Department, SUNY at Stony Brook Local Contact: Francis Loeb (516)282-5507, 2092 @ BNL Mark Ruckman (516)282-3515 @ BNL e-mail: [email protected] Spokesperson: Myron Strongin (516)282-3763 @ BNL Research Program: Photoemission, SEXAFS

Spot Size Angle of Flux at Exit Slit Total - typical Incidence Energy Range (photons/sec/A/ Acceptance Angle - focused at Zero Order (eV) 0.2% bw) (mradians) (mm) (degrees) Mirror 30 - 150 5 x 1010 4.0H x 1.0V 1.0H x 0.5V 80° P3 5-80 5 x 1010 4.0H x 1.0V 1.0H x 0.5V 67° P4

Optical Configuration Monochromator Three-element plane grating grazing monochromator, focal point at exit slit at 11 meters from source; AX/X = 4 x 10" ; refocusing after exit slit; demagnificalion of source is 0.1; divergence at exit slit is 40 mradH x 10 mradV; located 10 meters from the source. a) Mirror No. 1 Nickel coated parabolic collimaling aluminum mirror; focal length of 10 meters; angle of incidence fixed at 88°. b) Grating SiO^ gold plated grating; rectangular ruled; 600 grooves/mm; depth of groove is 200 A. c) Mirror No. 2 (P3 - P4) Nickel coated parabolic focusing aluminum mirror; focal length of -1 meter; four mirrors are available dependent on angle of incidence. d) Refocusing Mirror SiO^ gold plated mirror; focal length of 2 meters; angle of incidence fixed at 87°. Experimental Apparatus Ultra-high vacuum sample chamber - manipulator with xyz movement and z-axis rotation; VG APES 400 hemispherical analyzer mounted on two-axis goniometer or CMA (fixed); LEED/Auger facilities; no differential pumping; W mesh grid for Io calibration. Computer System Hardware and Software IBM PC 386 with UNIX operating system, 40 MB hard disk drive, 640 K RAM, 360 K floppy drive, real time data storage is to the hard disk, data output is to floppy diskette.

Febraury 10, 1993

-U7B- Beamllne: U8A Ring: VUV Operational Status: Operational

Participating Institutions: IBM - T.J. Watson Research Center Local Contact: Elliott Eklund (516)282-5508, 5303 @ BNL e-mail: [email protected] [email protected] Spokesperson: Read McFeely (914)945-2068 @ IBM Research Program: ARUPS, NEXAFS

Total Horizontal Energy Grating Spot Size Angular Range Type Resolution Flux -focused Acceptance (eV) (grooves/mm) (eV) (photons/sec) (mm) (mradians) 7-30 450 <0.5 1 x 10nina 1.0H x 1.0V -25 1 eV band pass 30 - 130 1800 <0.5 (50 mA, 750 MeV) 1.0H x 1.0V -25

Optical Configuration a) Mirror No. 1 Quartz gold coated toroidal mirror for collecting light from source; located 2.1 meters from the source. b) Mirror No. 2 Quartz gold coated planar minor for deflecting light to monochromator; angle of incidence is 6°; located 2.5 meters from source. c) Mirror No. 3 Quartz gold coated toroidal mirror for focusing source onto monochromator entrance slit; located 7.6 meters from source. d) Monochromator Three meter focal length toroidal blazed grating monochromator; quartz gold coated gratings; in-vacuum (UHV) interchangeability of two gratings using Geneva mechanism; manually adjustable entrance and exit slits; located 9.9 meters from source. e) Mirror No. 4 Quartz gold coated toroidal mirror for focusing onto sample at 13.5 meters from source; current collected from mirror surface used for photon reference channel; located 12.9 meters from source. Experimental Apparatus Introduction, sample prep and spectroscopy chambers are separated by gate valves and independently pumped; gas dosing capabilities in introduction and prep chambers; spectroscopy chamber pressure maintained at <5 x 10'1 Torr at all times; sample heating available; Auger spectrometer; LEED; spectroscopy chamber contains high resolution ellipsoidal mirror display analyzer with -1.8 steradian angular acceptance for electron energy analysis. Computer System Hardware and Software IBM AT to take EDC, CFS and zero order scans; DOS operating system; data stored on IBM AT hard disk as well as 5.25" floppy disks; Tektronix 4015-1 graphics terminal displays data as they are collected; Tek- tronix 4631 hardcopy unit available; IBM 4973 printer; IBM 4978 display terminal; IBM 4955F 512K proces- sor.

February 16, 1993

-USA- Beamline: U8B Ring: VUV Operational Status: Operational

Participating Institutions: IBM - TJ. Watson Research Center Local Contact: Elliott Eklund (516)282-5508, 5303 @ BNL e-mail: [email protected] [email protected] Spokesperson: Read McFeely (914)945-2068 @ IBM R.^earch Program: ARUPS, NEXAFS Total Horizontal Energy Grating Spot Size Angular Range Type Resolution Flux -focused Acceptance (eV) (grooves/mm) (eV) (photons/sec) (mm) (mradians) 70 - 180| 288 generally 1.0H x 1.0V -25 25 - 701 822 0.1 to 0.5 1.0H x 1.0V -25 5-251 2400 1 x 1011 in a leV 1.0H x 1.0V -25 band pass (50 mA, 300 - lOOT 800 0.17 for C(ls) 750 MeV) l.OHx 1.0V -25 250 - 700;: 1200 absorption at 1.0H x 1.0V -25 2 180 - 400 1800 Cedge G*7 eV> 1.0H x 1.0 V -25

]six meter TGM; 2ten meter TGM Optical Configuration al) Mirror No. 1 Quartz gold coaled toroidal mirror, focuses light on entrance slit of 10 meter TGM; 2° angle of incidence; located 2.1 meters from source. a2) Mirror No. 2 Quartz gold coated toroidal mirror, focuses light on entrance slit of 6 meter TGM; 2° angle of incidence; located 2.1 meters from source. b) Monochromators Single element toroidal grating monochromators (TGM); quartz gold coated, holographically ruled, ion-etched gratings; three gratingsA'GM interchangeable in UHV on revolver type mount; entrance and exit slits moveable in three coordinates in UHV; for 6 meter TGM the angle of incidence is 10° and the toroidal grating radii are 470.5 mm (sagittal) and 19,246 mm (meri- dional); for the 10 meter TGM the angle of incidence is 4° and the toroidal grating radii are 288 mm (sagittal) and 71,116 mm (meridional); located 7.1 meters from source. c) Mirror No. 3 Quartz gold coated planar mirror deflects light from 6 meter TGM onto horizontal path; 8° angle of incidence; located 8.4 meters from source. d) Mirror No. 4 Quartz gold coaled toroidal mirror for focusing and steering light from 6 meter TGM onto 6 meter exit slit; 2° angle of incidence; located 12.5 meters from source. e) Mirror No. 5 Quartz gold coated toroidal r lirror dcmagnifies beam by 0.25 from the common exit slit onto the sample 0.6 meters downstream; located 16 meters from source.

-U8B- - i. -

Experimental Apparatus Spectroscopy, main sample prep., sample introduction, gas manifold and two auxiliary sample prep, chambers are separated by UHV valves and pumped independently. Introduction chamber has magazine foi five samples; gas dosing and sample heating capabilities in both auxiliary prep, chambers; sputter cleaning, mass spec., LEED and sample heating in main prep, chamber. All chambers, except introduction chamber, maintained at <1 x 10' Torr; spectroscopy chamber contains high resolution ellipsoidal mirror display analyzer with 1.8 steradian angular acceptance for electron energy analysis. Computer System Hardware and Software IBM 386 AT computer programmed to collect EDC, CFS and zero order scans; DOS, OS/2 and AIX operating systems; data stored on 20 MB hard disk, transferable to 3.5" or 5.25" floppy diskettes; Tektronix 614 graphics terminal for spectrum display (as collected); IBM 4216 laser printer for hardcopy; IBM 8514 display terminal.

January 26, 1993

-U8B- Beamline: U8C Ring: VLJV Operational Status: Operational

Participating Institutions: IBM - T.J. Watson Research Center Local Contact: Read McFeely (914)945-2068 @ IBM e-mail: [email protected] Spokesperson: Read McFeely Research Program: Evaluation of a zone plate monochromator, reflectivity measurements of thin films and multilayers

Total Wavelength Zone Plate Angular Range - diameter Resolution Slit Size Acceptance (A) smallest period (VAX) (Um) (m radians) 20-35 5 mm; 0.4 Jim 500-1000 expected 100H x 30V 0.5H x 0.5V

30 - 55 7 mm; 0.6|im 80 (FWHM) @ 45 A with 100H x 30V 0.7H x 0.7V 0.5 mm source measured; 700 wilh 0.1 mm spot expected Flux has not been measured but can be estimated from the diffraction efficiency of the zone plates (3 - 10%) and angular acceptance (0.5 x 0.5 mrad or 0.7 x 0.7 mrad). Presently only two zone plates are installed; longer wavelengths can be obtained by the use of coarser zone plates. Optical Configuration Off-Axis Zone Plates These image the synchrotron source onto the exit slit; wavelengths are tuned by a linear transla- tion of the zone plates; distance between zone plates and exit slit is presently between 1.70 and 3.30 meters; zone plates are -10 meters from source point. The resolution is limited by the source size and 0.1 mm is required for A/AA. - 1000; the image of the source is 9 mm below the incident beam; the exit slit is fixed during wavelength tuning, but the direction of the exit beam changes ~ 2 mrad within the tuning range; the exit beam diverges from the exit slit with the angular acceptance (0.5 or 0.7 mrad). Experimental Apparatus Reflectometer sample chamber with capability to rotate mirrors and detector; parts to mount filters and measure transmission; standard mirror size is 25 mm x 25 mm and up to 50 mm x 50 mm is possible. Computer System Hardware and Software IBM PC computer for rotation of mirror and detector and for data analysis.

March 12, 1993

-U8C- Beamline: U8D Ring: VUV Operational Status: Conceptual

Participating Institutions: IBM - TJ. Watson Research Center Local Contact: Read McFeely (914)945-2068 @ IBM e-mail: [email protected] Spokesperson: Read McFeely Research Program: Scanning soft x-ray microscopy

March 16, 1993

-U8D- Beam Line: U9B Ring: VUV Operational Status: Operational

Participating Institutions: NSLS, BNL - Biology Department Local Contact: John Sutherland (516)282-5509, 3406 @ BNL e-mail: [email protected] Spokesperson: John Sutherland Research Program: Circular dichroism (CD), magnetic circular dichroism (MCD), time resolved fluorescence (lifetimes) (FL)

Total Energy Image Size Angular range Spectrometer Resolution at Sample Acceptance nm (eV) Type Application (nm/mm) (mm diameter) (mradians) 140-600 Vacuum CD, MCD 1.67 2 37H x 10V (8.9-2.1) FLft) - FL(t) indicates lime resolved fluorescence Optical Configuration a) Mirror No. 1 Copper planar mirror coated with electroless nickel, coated with gold; not adjustable; at normal incidence angle; deflects beam 90° down from horizontal; located 2.5 meters from the source. b) Mirror No. 2 Pyrex off-axis ellipsoid mirror coated with aluminum, coated with magnesium fluoride; reflects beam into horizontal perpendicular to the original beam thereby erecting it; predominant polariza- tion is vertical; at normal incidence angle; steerable via remote controls; focal point at entrance slits of monochromators; located 2.7 meters from the source. c) Spectrometer Monochromator One-half meter Czerney-Turner single grating vacuum monochromator dedicated to vacuum spec- trometer; operates at high vacuum (10" Torr) and separated from UHV by calcium fluoride win- dow; 1200 grooves/mm holographic quartz grating coated by aluminum, coated by magnesium fluoride; 0 - 3 mm independent entrance and exit slits; located 4.75 meters from the source. Experimental Apparatus For Fluorescence Spectroscopy 220 mm single toroidal grating emission vacuum monochromator; sample heater from -10° to 90°C; cryoslat from -190° to 20°C. (Position sensitive photomultiplier for simultaneous measure- ment of time-resolved fluorescence across emission spectrum - under development.) For CD/MCD A calcium fluoride photoelastic modulator, vacuum in sample chamber to 0.001 Torr, sample thermal control from -20° to 90°C, sample is in exact center of double cross; for magnetic circu- lar dichroism, a 2.2 Tcsla electromagnet, sample is in exact center of a dcjble cross. Computer System Hardware and Software Both spectrometers are operated by an ISA bus computer with a 80386 MPU with a 100 MB hard disk and dual 3.5", 1.44 MB floppy disks and connection to Ethernet (Internet) plus direct serial connection to a MicroVAX II computer with VAX/VMS (v.7) operating system (will be replaced by SUN SPARC station 10/41 in FY-93); Canberra single board MCA dedicated to time resolved fluorescence and MPA to collect F(t,X) data from position sensitive photomultiplicr.

December 17, 1992

-U9B- Beamline: U10B Ring: VUV Operational Status: Operational

Participating Institutions: NSLS, Lawrence Livermore National Laboratory, Superconducting Super Collider Local Contact: Conrad Foerster (516)282-4754, 5510 @ BNL e-mail: [email protected] Spokesperson: Conrad Foerster Research Program: PSD - general vacuum R&D

Total Horizontal Energy Beam Size Angular Range Resolution Flux - unfocused Acceptance (eV) (AE/E) (photons/sec/mA/mrad) (mradians) (mradians) White Beam White Beam 9.61 x 1013 12H x 5V 12 (max.) - maximum

Optical Configuration Beam line has neither mirrors nor monochromator. a) Collimator Box Adjustable horizontal and vertical slits; moveable horizontal and vertical wires and readouts for measuring position and intensity; located 4.5 meters from the source. b) Double Bellows Chamber Rotaiable chamber used to change angle of incidence to sample; located 4.9 meters from the source. Experimental Apparatus Calibrated BAG and RGA; pumping and bakeout equipment. Computer System Hardware and Software None at present.

December 23, 1992

-U10B- Beamline: Ull Ring: vuv Operational Status: Operational

Participating Institutions: NSLS, BNL - Chemistry Dept., BNL - Dept. of Applied Science, U. of New Mexico Local Contact: R. Bruce Klemm (516)282-4022, 5511 @ BNL e-mail: [email protected] Spokesperson: J. Robb Graver (516)282-4348 @ BNL e-mail: groveit§>bnlchm.bitnet Research Program: Gas phase photoionization

Spectral Grating Spot Size at Total Angular Range Type Resolution Flux Interaction Pt. Acceptance A(eV) (grooves/mm) (A) (photons/sec) (mm diameter) (mradians) 450 - 4300 1200 1 -3 0.7 - 2 x 1013 1.0 55H x 10V (28 - 3) (1000 A, 100 mA) 350 - 1400 3600 0.3- 1 0.7 - 2 x 1011 1.0 55H x 10V (35 - 9) (600 A, 100mA) 450 - 1500 3600 0.3- 1 0.7-2 x 1011 1.0 55H x 10V (28 - 8) (1000 A, 100 mA) Optical Configuration Monochromator Modified Wads worth normal incidence monochromator located 2.7 meters from the source. a) Mirror Spherical concave quartz blank osmium coated mirror; mirror is water cooled and fixed position; 200 mm by 50 mm with 2.8 meter radius; dumps hard x-ray radiation and pro- vides parallel rays to grating; 6° angle of incidence; high energy cutoff is 35 eV (350 A) depending on grating used. b) Gratings Spherical concave 4 meter radius focusing gratings, vertical focal point at exit slit 2 meters beyond monochromator, horizontal focal point and interaction point 27 mm beyond exit slit; all have same dimensions as mirror; 1200 grooves/mm grating is a quartz blank osmium coated ion etched laminar grating, highest efficiency below 11 eV (1100 A); first 3600 groove/mm grating is a quartz blank osmium coated Bausch and Lomb replica blazed at 304 A, maximum efficiency at 24.8 eV (500 A); second 3600 groove/mm grating is a quartz blank osmium coated holographic grating, highest efficiency at longer wavelengths (>800 A). Experimental Apparatus Supersonic molecular beam photoionization mass spectrometer, triply differentially pumped molecular beam, 1-2 atmosphere expansion of permanent gases, expansions of low vapor liquids, heating up to 150°C; quadrupole mass spectrometer for mass analysis with range up to 290 amu. Computer System Hardware and Software VAXstation 4000 Model 60; 19" Trinitron Color Monitor; 400 Mb system disk; 665 Mb user disk; CD ROM drive; 2.88 Mb 3!/2" floppy disk; GB 8mm tape drive; GPIB; DECnet/Ethemet; CAMAC; VMS v5.5-l; DECwindows-motif vl.Oa; Multinet v4.0; SoflPC; VAX FORTRAN v2.7; HP 7470 plotter; HP LaserJet III laser printer with Postscript level 2 cartridge; remote print queues; programs to control Klinger CC-1 stepping motor controller for monochromator; access via local network to HEPnet, Internet, BITnet, NYCERnet; data acquisition and analysis programs for running mass spectrometers are available.

January 27, 1993 -Ull- Beamline: U12A Ring: VUV Operational Status: Construction Operational late '93

Participating Institutions: U. of Tennessee - Department of Physics, Oak Ridge National Laboratory - Solid State Division Local Contact: Paul F. Lyman (516)282-5512, 5210 @ BNL e-mail: [email protected] Spokesperson: E. Ward Plummer (615)974-2288 @ U. of Tennessee (615)574-5503 @ ORNL David M. Zehner (615)574-6291 @ Oak Ridge National Laboratory David R. Mullins (615)574-2796 @ Oak Ridge National Laboratory Research Program: High resolution core level spectroscopy

Expected Values Total Spectral Grating Spot Diameter Angular Range Type Resolution Flux at Sample Acceptance A(eV) (grooves/mm) (A) (photons/sec) (mm) (mradians) 25-70 400 40H x 4V (496 - 177) 10- 30 1200 40H x 4V (1240-413)

Optical Configuration Monochromator Toroidal mirror, 3° toroidal grating monochromator, located 7.0 meters from the source. a) Front Mirror Gold coated aluminum toroidal mirror, 200 mm x 95 mm, sagittal radius is 152 mm, meridional radius is 41.2 m; vertical focus is at the entrance slit 2.5 meters upstream of the grating; horizon- tal focus is 1 meter upstream of the grating; inclined at 3° to the horizontal plane. b) Grating Gold coated Spectrosil "B" toroidal grating, 150 mm x 30 mm, ion etched, sagittal radius is 220 mm, meridional radius is 88 m; two gratings are available and exchangeable in situ in UHV; exit slit is moveable along a 0.75 m path parallel to the beam. Experimental Apparatus Sample chamber equipped wilh fixed hemisherical electrostatic analyzer (VSW Class 100), partial electron yield detector, cryogenic manipulator with e-beam healing, and single-pass cylindrical mirror analyzer for Auger electron spectroscopy. Sample preparation equipment includes ion sputtering gun and directed gas dosing setup. Computer System Hardware and Software Data Acquisition: HP Basic-based acquisition system. Monochromator Control: Northgate 386 PC-compatible (DOS).

March 15, 1993

-U12A- Beamline: U12B Ring: VUV Operational Status; Operational

Participating Institutions: U. of Tennessee - Department of Physics, Oak Ridge National Laboratory - Solid State Division Local Contact: Paul F. Lyman (516)282-5512, 5210 @ BNL e-mail: [email protected] Spokesperson: E. Ward Plummer (615)974-2288 @ U. of Tennessee (615)574-5503 @ ORNL David M. Zehner (615)574-6291 @ Oak Ridge National Laboratory Research Program: Angle-resolved photoemission

Spot Diameter Total Spectral Grating Flux at Sample Angular Range Type Resolution - 0.1 eV band pass - focused Acceptance A(eV) (grooves/mm) (A) (photons/sec) (mm) (mradians) 210- 1000 450 0.74 5 x 1012 2 50H x 6V (60 - 12) @ 460 A @30eV (100 mA, 750 MeV) 80 - 320 1800 0.32 1 x 1012 2 50H x 6V (155 - 39) @ 136 A @ 100 eV (100 mA, 750 MeV) Optical Configuration Monochromator 15° toroidal grating monochromator, located 5.8 meters from the source. a) Front Mirror Gold coated aluminum ellipsoidal mirror, 125 mm x 110 mm; 0.89 magnification ; focuses at entrance slit; inclined at 7.5° to the horizontal plane. b) Post Mirror Glass ellipsoidal mirror; 0.5 magnification; focuses at the sample; inclined at 7.5° to the horizon- tal plane. c) Grating Toroidal gratings, holographically ruled; two gratings available and exchangeable in situ in UHV; exit slit located 1.92 meters downstream from gratings, slit position corresponds to the horizontal and vertical focus at 130 A; maximum efficiencies at 30 eV and 90 eV for the low and high energy grating respectively. Experimental Apparatus ARPES: sample chamber equipped with a rotatable hemispherical electrostatic analyzer and a cryogenic manipulator capable of sample rotation around the vertical as well as the beam axes; sample preparation and characterization include an ion sputtering gun, back view LEED facility. Standard PES: sample chamber equipped with fixed hemispherical electrostatic analyzer (VSW Class 100), partial electron yield detector, cryogenic manipulator with e-beam heating, and a single-pass cylindrical mirror analyzer for Auger electron spectroscopy. Sample preparation equipment includes ion sputtering gun and directed gas dosing setup. Computer System Hardware and Software ARPES: Northgate 386 PC-compatible; DOS-based data acquisition and control software; IEEE- 488 and CAMAC interfaces. Standard PES: HP Basic-based data acquisition system (monochro- mator controlled by Northgale system). March 15, 1993

-U12B- Beamllne: U13UA Ring: VUV Operational Status: Operational

Insertion Devke Team: NSLS, Brandeis U., Rutgers U., AT&T Bell Labs, U. of Wisconsin at Milwaukee, Drexel U. Local Contact: Steven Hulbert (516)282-7570 @ NSLS/BNL e-mail: [email protected] [email protected] Spokesperson: Steven Hulbert Eric Jensen (617)736-2865; Brandeis U. Research Program: High resolution VUV/soft X-ray scattering, electron and ion spectroscopies

Expected Values Flux at Total 750 MeV Horizontal Energy G.ating Included Source Angular Range Type Angle Resolution (photons/sec/ Acceptance (eV) (grooves/mm) (deg) Source/Mode (AE/E) A/0.1% bw) (mradians) 400 - 1200 1200 174° Wiggler <2 x 10"4 2 x 10|^ 6.3* 200-600 600 174° Wiggler <2 x 10"4 3 x 10n 6.3* 100-300 300 174° Wig.-Und. <2 x 10"4 3 x 1015 6.3* 30 - 120 1200 160° Undulator <1 x 10"4 2 x 1015 6.3f 15-60 600 160° Undulator <1 x 10"4 2 x 1015 6.3+

1.2 K/y for K=7.6

January 14,1993

-U13UA- Beamline: U13UB Ring: VUV Operational Status: Operational

Insertion Device Team: AT&T Bell Labs; BNL - Instrumentation Div., GCA Tropel, Litton/Itek Optical Systems, Optical Research Associates, Sandia National Laboratory, Talondic Research Corporation, Local Contact: Alastair MacDowell (516)282-5334 @ BNL e-mail: [email protected] Spokesperson: Richard Freeman (908)949-9500 @ AT&T Research Program: Optical metrology for soft x-ray projection lithography

Flux Energy Range (photons/sec/100 mA/0.1 mradH/ Acceptance Resolution (eV) Source 0.1 mradV/1.0% bandpass) (mradians) (AE/E) 3- 100 U13 Undulator 3xlO14 lxl mrad Approx. 4% Kpeak = 0.6 - 6.0 Kpeak = 1.0 defined by for 1st harmonic - 22.5 periods Jlj = 35 eV mirror size at - 10 cm period No monochromator mirror switcher

Optical Configuration Three mirror switcher 11 meters from source. This switcher reflects the white beam into either of three experimental stations. a) Mirror 1 Two 22.5° grazing reflections from iridum coated mirrors; total beam deflection = 90°. b) Mirror 2 One 7.5° grazing reflection from silicon mirror; total beam deflection = 15°. c) Mirror 3 Two 22.5° grazing reflections from iridium coated mirrors; total beam deflection = -90°. Experimental Apparatus Three vacuum experimental apparati: for Exp't. 1 - imaging with Schwartzchild camera; for Exp't. 2 - imaging with Offner Ring Field camera; for Exp't. 3 - soft X-ray interferometry. Computer System Hardware and Software For Exp't. 1 - none; for Exp't. 2 - AT&T PC6300, MS DOS operating system, 20 MB hard disk; for Exp't. 3 - AT&T WGS6300, MS DOS operating system, 20 MB hard disk, CAMAC with motor controller and scalar.

January 22, 1993

-U13UB- Beamline: U14A Ring: VUV Operational Status: Operational

Participating Institutions: National Synchrotron Light Source Local Contact: Mei-Ling Shek (516)282-5514 @ BNL FAX: (516)-282-3238< e-mail: [email protected]; [email protected] Spokesperson: Mei-Ling Shek (516)282-5930 @ BNL Research Program: Solid state photoemissions studies

Spotsize Angle of Flux at Exit Slit Total -typical Incidence Energy Range (photons/sec/amp/ Acceptance Angle -focused at Zero Order (eV) 0.2% bw) (mradians) (mm) (degrees) Mirror 120 - 400 5 x 10J? 4.0H x 1.0V 3.0H x 1.0V 86° P2 30 - 150 5 x 10 0 4.0H x 1.0V 3.0H x 1.0V 80° P3 15-50 5 x 1010 4.0H x 1.0V 3.0H x 1.0V 67° P4

Optical Configuration Monochromator Three-element plane grating grazing monochromator; focal point at exit slit at 11 meters from source; Ak/X = 3x10" ; no refocusing after exit slit; demagnification of source is 0.1; divergence at exit slit is 40 mradians H x 10 mradians V; located 11 meters from source. a) Mirror No. 1 Nickel coated parabolic collimating aluminum mirror; focal length of 10 meters; angle of incidence at 88°. b) Grating SiO~ gold plated grating; rectangular ruled; 600 rules/mm; depth of rule is 200 A. c) Mirror No. 2 (PI - P4) Nickel coated parabolic focusing aluminum mirror; focal length of ~ 1 meter; four mirrors are available dependent on angle of incidence. Experimental Apparatus Ultra-high vacuum sample chamber - double pass cylindrical mirror analyzer with 0.02 (AE/E) resolving power, hemispherical VG angularly resolved analyzer with 2-axis goniometer, LEED/Auger facilities. Manipulators with xyz movement and z-axis rotation (details available from Spokesperson). Computer System Hardware and Software IBM AT with 360 K/1.2 MB floppy drive; 30 MB hard disk drive, 1024 RAM; VENIX operating system; CAMAC interface; software for monochromator control and data acquisition.

December 16, 1992

-U14A- Beamline: U15 Ring: VUV Operational Status: Operational

Participating Institutions: NSLS. SUNY at Stony Brook, SUNY at Buffalo Local Contact: De Ji (516)282-5515 @ BNL (516)632-7918 @ SUNY at Stony Brook Spokesperson: David Hanson (516)632-7884 @ SUNY at Stony Brook e-mail: [email protected] Research Program: Soft x-ray spectroscopy (solids and gases)

Total Horizontal Wavelength Grating Flux Angular Range Type Resolution (photons/sec/ Acceptance (A) (grooves/mm) (AE/E) 1.0%bw) (mradians) 15-40 600 5 x 10'3 1011 5.0

Optical Configuration a) Monochromator Single element grazing incidence toroidal grating monochromator; gold laminar grating with 120 A deep grooves, grating area is 50 mm long by 15 mm wide, sagittal radius is 0.19 meters and meridional radius is 88 meters, toroid focal point at 9 meters from source; dispersion is vertical and positive first order; total deviation is 5.72°; located 3 meters from the source. b) Mirror Planar mirror (quartz or gold coated or nickel coated types available) for readjusting the beam to the horizontal plane after exiting the monochromator, choice of mirror dependent upon wavelength desired; located 9 meters from the source. Experimental Apparatus System capable of introducing soft x-rays into atmosphere outside beam line proper via a 200 jim x 200 \im, 1200 A thick Si,N, window thus allowing the use of wet sample mounts; spectros- copy chambers for solid or gas phase experiments. Computer System Hardware and Software IBM PC compatible computer; DOS operating system; one 5.25" floppy disk drive and one 3.5" floppy disk drive; CAMAC interface; printer; software for automatic control of monochromalor.

February 3, 1993

-U15- Beamline: U16A Ring: VUV Operational Status: Operational

Participating Institutions: U. of Texas, Sandia National Laboratory Local Contact: A. Ballard Andrews (516)282-4206, 5516 @ BNL Spokesperson: James L. Erskine (512)471-1464 @ U. of Texas at Austin e-mail: [email protected] Research Program: Angle-resolved photoelectron emission from solids and surfaces, epitaxial metal films, high resolution core levels

Energy Grating Flux Spot Size Total Angular Range Type Resolution (photons/sec @ - focused Acceptance (eV) (grooves/mm) (AVX) 0.1% bw) (mm) (mradians) 10-25 288 (G3) <3 x 10"3 1 - 6 x 109 10H x 0.1 - 3V 25.0H x 5.0V (250 mA/750 MeV) 24-72 822 (G2) 1 - 2 x 10'3 1 - 6 x 109 10H x 0.1 - 3V 25.0H x 5.0V (250 mA/750 MeV) 70 - 180 2400 (Gl) 1 x 10~3 1 - 6 x 109 10H x 0.1 - 3V 25.0H x 5.0V (250 mA/750 MeV)

Optical Configuration a) Mirror No. 1 Gold coated copper ellipsoidal mirror; 71.1 mm x 121.9 mm x 38.1 mm deep; operates at UHV; images 2225.0 mm downstream from mirror, magnifies by 1.0; 5.0° grazing angle of incidence; adjustable with three point linear (0.01 mm increments) and one rotational (1 mradian increments) mounts about vertical axis; located 2225.0 mm from the source. b) Monochromator Six meter toroidal grating monochromator with three grating types interchangeable in UHV under normal operating conditions; entrance and exit PSL-design slits adjustable from 45 - 5000 |im; zero order of incidence is 80° for all gratings; gratings are aberration compensated holographic quartz type, Gl is platinum coated, G2 + G3 are gold plated; located 7 meters from the source. c) Mirror No. 2 Gold coated copper ellipsoidal mirror; 50.8 mm x 254 mm x 26.4 mm deep; input focal length of 2400 nun from monochromator exit; mirror to sample position 0.6 meters downstream; grazing angle of incidence is 5.0°; same adjustments as Mirror No. 1; located 13.0 meters from the source. Experimental Apparatus High resolution, angle-resolved electron analyzers: #1 (designed and built by J.L. Erskine), mounted on a two-axis goniometer, resolving power (AE/E) is 0.01, anglular resolution (AB) ± 1.5°; #2 (designed and built by VSW), AE/E = 0.01, A9 = ± 4°. UHV sample introduction and prep chambers with in-vacuum transfer and LEED/Auger facilities; MBE sample preparation and cryogenic capabilities. Certain sample synthesis capabilities require special arrangements with the PRT. Computer System Hardware and Software PDP-11/23 computer with 30 MB hard disk drive and dual 8" floppies; RSX-11M operating system, CAMAC modules; Tektronix graphics terminal; graphics plotter; data acquisition package; Mac II fx with 160 MB hard disk, 8 MB RAM, 3.5" floppy and data analysis software. PDP-11/23 soon to be replaced by a MaxIIfx with CAMAC driver.

February 2, 1993

-U16A- Beamline: U16B Ring: VUV Operational Jtatus: Operational

Participating Institutions: Cornell U., Sandia National Laboratories Local Contact: Steve Woronick (516)282-5516 @ BNL Spokesperson: Robert Merrill (607)255-9857

Energy Grating Flux Spot Size Total Angular Range Type Resolution (photons/sec/ - focused Acceptance (eV) (grooves/mm) (AE/E) 0.1 A/0.05% bw) (mm) (mradians) 25 - 190 600 1.0 x 10"3 8 x 1010 4.0H x l.OV 12H x 2V (2m radius) @ 100 eV @ 100 eV (0.75 GeV) 140-600 800 0.6 x 10'3 3 x 1010 4.0Hx l.OV 12H x 2V (3.71m radius) @400eV @400eV (0.75 GeV) 270 - 1000 1200 0.4 x 10"3 0.5 x 1010 4.0Hx l.OV 12H x 2V (5m radius) @600eV @600eV (0.75 GeV)

Optical Configuration a) Mirror No. 1 (horizontal focusing) Bent gold-coated cylindrical Pyrex mirror, length is 96 cm, 2° angle of incidence, 2° angle of deflection, magnification of 1, focuses at 6.1 meters at the monochromator exit slit in a plane per- pendicular to the gratings; located 3.06 meters from the source. b) Mirror No. 2 (vertical focusing) Bent gold-coated elliptical Pyrex mirror, length is 30 cm, focuses onto the monochromator entrance slit 52 cm downstream; demagnification 7:1. c) Monochromator Extended range grasshopper (ERG); entrance slit is Codling minor/slit combination; three gratings installed and interchangeable at UHV; each grating is gold coated silica, holographically formed and ion etched; entrance and exit slits are continuously adjustable down to 10 \\m. d) Mirror No. 3 (refocusing) Gold-coated elliptical 1:1 refocusing metal mirror focuses beam; mirror is located 7.1 meters from the source. Experimental Apparatus The U16B beamline is designed to accomodate removable end-stations with specific functions. These are installed as required by UHV coupling to the diagnostic station downstream of the monochromator. End-stations with special purpose designs are usually provided by the general user. Use of special ancillary beamline equipment or components by the general user may be made by special arrangement with the PRT members. It is most effective for users wishing to work independently on general studies to provide their own end-station. The Cornell University special purpose surface science end-slation provides for both angle- integrated and angle-resolved electron analysis. Where appropriate, it may be arranged to be used on a collaborative basis by special arrangement with T.N. Rhodin or R.P. Merrill. Requests for information about the Sandia National Laboratories surface science end-station should be directed to N.D. Shinn.

-U16B- -2-

Computer System Hardware and Software DEC LSI 11/73 processor with 0.5 MB main memory; 42 MB Winchester and dual 8" floppy disk drives; serial (RS232) interface; computer interfaced with CAMAC crate; operating system is TSX-plus; software available for automatic monochromator control and data acquisition.

March 31,1993

-U16B- SECTION C:

X-RAY

-X-RAY/1- The X-Ray Storage Ring and Beamlines

The following items are listed in this section:

parameters describing the X-ray ring are listed in Table 5; a bar graph indicating the energy ranges used in research at the X-ray beamlines (Figure 6); single page descriptions for the X-ray beamlines XIA through X26C.

Further information regarding the X-ray ring and associated beamlines may be obtained by contacting:

Dr. Roger W. Klaffky X-Ray Research Operations Manager National Synchrotron Light Source Building 725D Brookhaven National Laboratory Upton, NY 11973 USA Tel. (516)282-4974 FAX (516)282-3238

X-Ray Beamline Descriptions - An Explanation

Each beamline description is dated to indicate w'.ien the described configuration existed. These configurations are expected to change over time. A number of points are explained below.

1. Operational Status: a. Operational - beamline is actively used in research; b. Commissioning - beamline is built and is being run for the sole purpose of detecting flaws in the configuration prior to Operational mode; c. Construction - beamline is being assembled; d. Planned - beamline design is completed but construction has not yet begun; e. Conceptual - pre-design stage. 2. Local Contact: individual(s) usually available at the beamline, their telephone number and the location of that number. 3. Spokesperson: individual(s) responsible for the beamline research program, their telephone number and the location of that number. 4. Research Program: describes only broad or general categories of research; specifics should be discussed with the beamline personnel. 5. Optical Configuration: listed in the order in which components appear going downstream along the beamline. 6. Experimental Apparatus: equipment available to General Users. 7. Computer System Hardware and Software: equipment available to General Users. 8. The following X-ray beamlines are not described below and are used for NSLS R&D and beam- line diagnostics: X4B, X5B, X12A, XI3, X27, X28, X29, X30. 9. Abbreviations: EXAFS = extended X-ray absorption fine structure; SEXAFS = surface EXAFS; XAS = X-ray absorption spectroscopy.

-X-RAY/3- Table 5: X-Ray Storage Ring Parameters as of March 1993 Parameters X-Ray Storage Ring Normal Operating Energy 2.584 GeV Maximum Operating Current 0.25 amp (1012 e") Lifetime -20 hours Circumference 170.1 meters Number of Beam Ports of Dipoles 30 Number of Insertion Devices 5 Maximum Length of Insertion Devices < 4.50 meters Xc(Ec)atl.22T(B) 2.48 A (5 keV) X. (EJ at 5.0 T (W) 0.60 A (20.8 keV) Bfr) 1.22 Tesla (6.875 meters) Electron Orbital Period 567.7 nanoseconds Damping Times (2.5 GeV) TX = T = 6 msec; tg = 3 msec Touschek (2.5 GeV, 0.25A) > 16 hrs (vw = 700 kV) Lattice Structure (Chasman-Green) Separated Function, Quad Triplets Number of Superperiods 8 Magnet Complement 16 Bending (2.7 meters each) 40 Quadrupole (0.45 meters each) 16 Quadrupole (0.80 meters each) 32 Sextupole (0.20 meters each) Nominal Tunes (v , v ) 9.15, 6.20 Momentum Compaction 0.0065 R.F. Frequency 52.88 MHz Radiated Power for Bending Magnets 126 kW/0.25 amp of Beam R.F. Peak Voltage 700 kV Design R.F. Power 300 kW v (Synchrotron tune) 0.002 4 Natural Energy Spread (<5£/E) 8.2 x 10" Natural Bunch Length (2a) 10.5 cm Number of RF Buckets 30 Typical Bunch Mode 25 Horizontal Damped Emittance (e ) 1.1 x 100"q meter-radian Vertical Damped Emittance (e ) 0 Power per Horizontal milliradian (0.25A) 20 watts Arc Source Parameters

Betatron function (PX»PV) 1.09 to 2.% m, 9.54 to 18.53 m Dispersion function (T| ,J\ ,) 0.420 to 0.007 m, -0.351 to 0.175 m P'/2 -0.199 to 1.357, -2.18 to 2.19 0.952 to 0.962 m'1, 0.532 to 0.291 m"1 Source size (cr ,

Source divergence (ax-.°v-) 439 to 324 urad, 24 to 10 urad Insertion Device Parameters

Betatron function (PX»PV) 1.60 m, 0.435 m

Source size (OX,CT ) 415 urn, 22 yun

Source divergence (qx.,qv-) 260 urad, 50 |irad Sources of Data: NSLS Parameters, 1983, A. van Stecnbergen; Synchrotron Light Source Data Book - Ver. 2, 1990, J. Murphy (BNL 42333r); 1993 information updates by N. Fewell, S. Hulbert and J. Safranek (NSLS).

-X-RAY/5- Figure 6: NSLS X-Ray Beamline Energy Ranges (eV)

BEA M- LINE

XtA X1B X2A X2B X3A1 X3A2 X3B1 X3B2 X4A X4C X5 X6A X6B X7A X7B X8A X8C X9A X9B X10A X1OB X1OC X11A X11B X12B -H--4-H X12C X14A X14B X15A X15B X16A X16B X16C X17B1 X17B2 X17C X18A

March 1993

-X-RAY/6- Figure 6: NSLS X-Ray Beamline Energy Ranges (eV) - Cont'd.

0° 101 102 103 10* K BEAM- — LINE

- — — X18B I .. •ii X19A ... X19C WHI' 'El JEAM X20A f " I i X20B J.I III ' X20C 1-j - j i- • X21 1 t * i X22A I r - -4 X22B j f- 1;. X22C j • X23A2 j j. | •i X23A3 1

- - • •• X23B WHI' 'El Tt- X24A 1m

X24C :•• X25 Pf'-TF uimm• X26A t !• ]- - - 1 i HI- X26C WHITE IJEAlil I ] m

I- -• - — •fj-- t 1 \\ 1 ••] } f • f - -4 - -- i ! • • j \ - — — -•t— i 1 i i ' i j -t • • r f f | i j ] I - * * i j .... [|... • i j i t \ 11 * f ft •|""' i ~ f i | • 1 it • t t —(• — - —)- -j— ! ! H . r "I ... |_. . _ _. ! M -r I i ! -| - - --1 ' f-rf "H 4 I . ! t i ...... — -— —1— t • t | tj 4j 1 t ...... - --•- __| _t I'M 4 i., . . t 1 " 1 t •-+— Hi j - i i j lit jl I - -11 •• ...... i ; j i f | i| 1 1 ; • ...... | ! f ! i 1! tj --- - - t j + i I " "i i • li - -i {

1 • - - . ; " [z •j j ;il i •- i + ...(...... • - 1 T * f \ i ; t j i 1 - ' * I f ... >.__

1 i 1 • 1 •! 1 j L : ; ; j i i in.. __. 1 1 1

March 1993

-X-RAY/7- Beamline: X1A Ring: X-Ray Operational Status: Operational

Insertion Device Team: NSLS, SUNY at Stony Brook, IBM, Lawrence Beikeley Laboratory Local Contact: Sue Wirick (516)282-5601, 4723 @ BNL e-mail: bnlxl::wirick Spokesperson: Janos Kirz (516)632-8106 @ SUNY/Stony Brook e-mail: sbhep::kirz ; [email protected] Research Program: Soft X-ray imaging

Focal Spot Wavelength Resolving Spatially with Ranges Power Coherent Flux Fresnel Zone (A) Source Monochromator (VAX) (photons/sec/0.1% bw) Plate 10-30 Soft X-ray Spherical 200-2000 108-109 -500 A short X undulator grating (meas.) (@ 100 mA, 2.5 Gev) flux in (bis branch Fundamental: spot - 10 /sec 17 - 70 A 20-80 long A. branch

Optical Configuration a) Mirror Cylindrical high energy cutoff mirror, nickel coated; located 13 meters from the undulator source. b) Collimator Located between mirror and grating to produce a spacially coherent source for imaging; slits range from 25 - 750 [Un; located 16 meters from the undulator source. c) Bichromator Single spherical grating with 540 lines/mm; grating is nickel coated fused silica; UHV up to and including exit slits; two exit slits allow simultaneous experiments to occur at two coupled wavelengths; located 18 meters from the undulator source. d) Fresnel Zone Plate Testing various types and aiming for 300 A resolution; located 22 meters from the undulator source. Experimental Apparatus A variety of imaging modes are used including scanning transmission x-ray microscopy and x-ray holography (XI Al beamline) primarily for biological specimens (possibly wet, in or out of air), as well as a scanning photoemission microscope (X1A2 side station) to image surfaces in a UHV environment. Computer System Hardware and Software Beamline controls, data analysis and image display using two MicroVAX computers with 1 GB disk space; high resolution color image display.

January 8, 1993

-XI A- Beamline: X1B Ring: X-Ray Operational Status: Operational

Insertion Device Team: Fritz Haber Institute (Berlin), NSLS, BNL - Physics Department, KFA Julich Local Contact: Peter Johnson (516)282-3705, 5701 @ BNL e-mail: [email protected] Spokesperson: Peter Johnson Research Program: Soft X-ray spectroscopy

Spot Size Wavelength Gratings Flux - focused (A) Source (grooves/mm) Resolution (photons/sec) (mm) 10-50 same as -800 <100 meV @ 5 x 1012 2Hx IV X1A (others available 300 eV in the future) <500 meV @ 500 eV

Optical Configuration a) Mirror No. 1 Cylindrical focusing aluminum mirror coated with electroless nickel and gold; 2.5° angle of incidence; water-cooled; focuses undulator source horizontally onto sample; located 14.2 meters from the source. b) Mirror No. 2 Cylindrical focusing aluminum mirror coated with electroless nickel and gold; 2.5° angle of incidence; water cooled; 5:1 demagnification; focuses undulator source vertically onto entrance slit of monochromator; located 14.45 meters from the source. c) Monochromator Cylindrical grating monochromator with water cooled entrance slit and moveable exit slit; optical glass gold coated spherical grating (water cooled), total deflection angle is 6.6°. Future use of multiple water cooled silicon carbide gratings. Experimental Apparatus Various experimental setups for photoemission of solids and gas phase samples. Available for general users only upon special arrangement with PRT members. Computer System Hardware and Software PC 386/25 MHz, 64 K cache, co-processor, 150 MB hard disk.

February 2, 1993

-X1B- Beamline: X2A Ring: X-Ray Operational Status: Design Operational by 12/93

Participating Institutions: Exxon Research and Engineering Company Local Contact: Kim Mohanty (516)282-5644 @ BNL Spokesperson: Do Young Noh (908)730-2598 @ Exxon Research Program: Small angle scattering

Optical Configuration Double crystal monochromator; focusing mirror. Experimental Apparatus Small angle scattering apparatus. Computer System Hardware and Software UNIX system running SPEC.

March 11,1993

-X2A- Beamline: X2B Ring: X-Ray Operational Status: Operational

Participating Institutions: Exxon Research and Engineering Company Local Contact: Mike Sansone (516)282-5759 @ BNL Spokesperson: Do Young Noh (908)730-2598 @ Exxon Research Program: X-ray microtomography

Total Horizontal Energy Spot Size Angular Range Crystal Resolution Flux -focused Acceptance (keV) Type (AE/E) (photons/sec) (mm) (mradians) 6.5 - 30 Si(lll) 2X10"4 ~2x 1011 5Hx7V 2 @ 11 keV (70 mA, 2.5 GeV) White Beam White Beam

Optical Configuration Mirror and monochromator mounted in hutch. Mirror is uncoated Zerodur flat used for harmonic rejection. Experimental Apparatus Radiation hutch with white beam and monochromatic beam capability. X-ray imager with scintil- lator and optical coupling to 1024 x 640 CCD sensor. Motion control for monochromator and tomographic scanning. Use of microtomography equipment is by agreement with PRT members. Computer System Hardware and Software Beamline Control Dell 310 UNIX system running SPEC for monochromator, mirror and diffractometer control. Tomographic Scanning Apollo DN4000 for data acquisition, tomographic reconstruction and beamline control (custom software running under UNIX and/or AEGIS OS). Visualization Kubota Pacific Computing (Stardent) Titan II running AVS3.

March 11, 1993

-X2B- Beamline: X3A1 Ring: X-Ray Operational Status: Operational

Participating Institutions: State University of New York Local Contact: Dr. Alex Darovsky (516)282-5603, 3770 @ BNL e-mail: [email protected] Spokesperson: Prof. Philip Coppens (716)829-3911 @ SUNY at Buffalo Research Program: Short wavelength crystallography, diffraction and scattering

Total Horizontal Energy Flux Angular Range Crystal @ 100 mA, 2.5 GeV Spot Size Acceptance (keV) Type (photons/sec/mrad/0.1% bw) (mm) (mradians) 29.7 Si(220) 0.33 x 1011 H<0.4 1.4 (max) [59.4] [Si(440)] (calc.) V fixed @ 2

18.2 Si(lll) 0.35 x 1011 H<0.4 1.4 (max) [54.6] lSi(333)] (meas.) V fixed @ 2

Optical Configuration a) Monochromator Single bent triangular crystal to monochromatize the beam and focus it in the horizontal with a sideways diffraction (installed in X3A2 monochromator housing) ; 26 fixed at 12.0°; horizontal focusing variable to a minimum of 0.5x of source size; energy resolution (AE/E) varies with focal spot chosen; sample ai 12.4 meters from source; monochromator located 7.8 meters from the source. Experimental Apparatus Radiation hutch; 4-circle Huber 5020 diffractometer; cryostat (down to 15° K). Computer System Hardware and Software MVAXII computer using MicroVMS multiuser system; CAMAC module interface; VDU graphics terminal; tape drive shared with X3A2; comprehensive data collection software package.

January 21, 1993

-X3A1- Be&imline: X3A2 Ring: X-Ray Operational Status: Operational

Participating Institutions: State University of New York Local Contact: Dr. Alex Darovsky (516)282-5603, 3770 @ BNL e-mail: [email protected] Spokesperson: Prof. Philip Coppens (716)829-3911 @ SUNY at Buffalo Research Program: Diffractometry, x-ray spectroscopy, crystallography, scattering, small angle scattering

Total Horizontal Energy Resolution Spot Size Angular Range Crystal - unslitted Flux (meas.) - focused Acceptance (keV) Type (AE/E @ 9 keV) (photons/sec/mrad) - FWHM (mm) (mradians) 4-13 (foe.) Si(lll) 4x 10"4 0.9 x 1011 0.5H x 0.5V 6.0 4 - 27 (unfoc.) @ 6 - 9 keV (93 mA, 2.523 GeV) 4.6-13 (foe.) Si(220) 3.5 x 10"4 1.4 x 1010 0.5H x 0.5V 6.0 4.6-34 (unfoc.) @8keV (50 mA, 2.4 GeV)

Optical Configuration a) Monochromator DoubJe flat crystal monochromator with rapid tunability and fixed exit geometry; 8 meters from the source. b) Mirror 1:1 gold coated doubly focusing bent toroidal quartz mirrors; 600 mm long x 60 mm wide with 53 and 60 mm radii; incident angles between 5.7 and 8.2 mrad; adjustable focal point from 19 to 21 meters; radiation cutoff at 14(12) keV for 19 meters and at 15.5(13.5) keV for 21 meters; located 9.4 meters from the source. Experimental Apparatus Radiation hutch; six-circle Huber diffractometer; xyz table (-1000 lbs. capacity); cryostat; optical bench; linear position sensitive detector; fast scintillation detector (Siemens). Computer System Hardware and Software MVAXII computer; CAMAC modular interface; disk and tape storage; hard copy and VDU graphics terminals; MicroVMS multiuser operating system; comprehensive data collection software package (crystallography).

January 21, 1993

-X3A2- Beamline: X3B1 Ring: X-Ray Operational Status: Operational

Participating Institutions: State University of New York Local Contact: Dr. Alex Darovsky (516)282-5603, 3770 @ BNL e-mail: [email protected] Spokesperson: Prof. Philip Coppens (716)829-3911 @ SUNY at Buffalo Research Program: X-ray spectroscopy, standing waves, powder diffraction

Total Horizontal Energy Resolution Spot Size Angular Rcige Crystal - unslitted Flux @ 9 keV - 2 mrad unfocused Acceptance (keV) Type (AE/E @ 9 keV) (photons/sec/mrad) (mm) (mradians) 4-40 Si(lll) 5.9 x 10"4 2 x 1011 (meas.) 24Hx2V 2 (200 mA, 2.5 GeV) 4.6 - 34 Si(220) 3.5 x 10"4 1012 (calc.) 24Hx2V 2 (100 mA, 2.5 GeV)

Optical Configuration Monochromator Double crystal monochromator; fixed exit geometry; 3° - 34° Bragg angle range; located 10.8 meters from the source. Experimental Apparatus Radiation hutch; X-ray spectroscopy detectors; cryostat (down to 15° K); two circle Huber-424 diffractometer.

Computer System Hardware and Software IBM PC-AT clone running "Super" data collection program through CAMAC interface.

January 21, 1993

-X3B1- Beamline: X3B2 Ring: X-Ray Operational Status: Operational

Participating Institutions: State University of New York Local Contact: Dr. Alex Darovsky (516)282-5603, 3770 @ BNL e-mail: [email protected] Spokesperson: Prof. Philip Coppens (716)829-3911 @ SUNY at Buffalo Research Program: Surface science

Total Horizontal Energy Resolution Flux Spot Size Angular Range Crystal - unslitted - focused - 6 mrad focused Acceptance (keV) Type (AE/E @ 9 keV) (photons/sec) (mm) (mradians) 4-20 Si(lll) 5.9 x 10"4 4xlOH 1.2H x 8V 6 @ 13 keV (150 mA, 2.5 GeV)

Optical Configuration Monochromator Double crystal monochromator; first crystal is flat; sagittal focussing of second crystal; fixed exit geometry; 0° - 89° Bragg angle range; located 9.6 meters from the source. Special note: this monochromator can also feed the X3B1 hutch instead of the X3B2 experiment. Experimental Apparatus Surface science chamber, equipped with a sample manipulator, surface cleaning, surface charac- terization e.g. surface diffraction and X-ray standing wave capability with synchrotron radiation.

Computer System Hardware and Software IBM PC-AT clone running "Super" data collection program through CAMAC interface.

January 21, 1993

-X3B2- Beamline: X4A Ring: X-Ray Operational Status: Commissioning Operational by Fall '93

Participating Institutions: Howard Hughes Medical Institute Local Contact: Craig Ogala (516)282-7435, 5604 @ BNL e-mail: NA Spokesperson: Wayne A. Hendrickson (212)305-3456 @ Columbia University Research Program: Multiwavelength anomalous diffraction analysis of crystalline biolog- ical macromolecules

Expectec1 Values Minimum Horizontal Measured Angular Energy Horizontal Acceptance Range Crystal Resolution Flux Spot Size of Step Slit (keV) Type (AE/E) (photons/sec) (mm) (mradians) -4-30 Si(lll, 220,400) -lo-4 3 1,2.3.5,5,8

Optical Configuration The X-ray optics include a KOHZU double crystal monochromator with a water-cooled flat first crystal and a sagittally focused second crystal positioned for a fixed exit beam condition. A mir- ror system consisting of two vertically stacked, fused silica, spherical mirrors will be used to pro- vide additional focusing and harmonic rejection. One of the mirrors will be rhodium coated. The user will have a choice of either mirror depend:ng on the desired energy. The monochromator to sample distance is 6 meters; the source to monochromator distance is 18 meters and the source to mirror distance is 19.7 meters. Further research is planned to reduce the spot size. Experimental Apparatus Radiation hutch to handle samples up to biosafety level BL-2 and maintain temperatures down to 10°C; single crystal goniometer with Oxford constant temperature control ("Cryostream"); storage phosphors and a FUJI BAS 2000 scanner will be used for efficient data collection, but a single counter capability will also be available. Computer System Hardware and Software A MASSCOMP 6700 series computer controls the beamline and data acquisition. This system can have up to five CPU's each equipped with floating point accelerator and vector processors. The computer has "real time" capabilities under the UNIX operating system (RTU). A SUN SPARC Station 10 with an 8 mm tape drive will be used with the storage phosphor scanner. Pos- sibly, Indigo workstations will be used for data processing.

March 23, 1993

-X4A- Beamline: X4C Ring: X-Ray Operational Status: Construction Operational by Summer '94

Participating Institution: Howard Hughes Medical Institute Local Contact: Craig Ogata (516)282-7435, 5804 @ BNL e-mail: NA Spokesperson: Wayne A. Hendrickson (212)305-3456 @ Columbia University Research Program: Diffraction measurements from biological macromolecules

Expected Values Maximum Horizontal Energy Angular Range Crystal Resolution Flux Spot Size Acceptance (keV) type (AE/E) (photons/sec) (mm) (mradians) 8--15 Si(lll) ~io-3 6 Optical Configuration The X-ray optics will include a monochromalor system consisting of a horizontally deflecting and focusing crystal followed by a vertically focusing mirror. The monochromator design will permit rapid and simple tuning. The monochromator to sample distance is variable between 2.5 and 4.5 meters; the source to monochromator distance is 10 meters. Experimental Apparatus Radiation hutch to handle samples up to biosafety level BL-2 and maintain temperatures down to 10°C; diffraction equipment with rotation and precession photography capabilities, both equipped with storage phosphor plates. Computer System Hardware and Software To be workstation or PC-controlled.

March 23, 1993

-X4C- Beamline: X5 Ring: X-Ray Operational Status: Operational

Participating Institutions: BNL - Physics Department Local Contact: Andrew Sandorfi (516)282-7951, 5605 <§> BNL e-mail: [email protected] Spokesperson: Andrew Sandorfi Research Program: Laser electron gamma source (LEGS), medium energy nuclear phy- sics.

Distance Energy Resolution Ring from Center Spot Size Range AE Energy Target of Straight FWHM (MeV) (MeV) (GeV) Areas Section (m) (mm) 80- 100 16 2.5 1 36 2.1H x 1.0V 180 - 400 6 2.5 2 43 2.5H x 1.2V

Operation Gamma ray beams are produced by Compton backscattering of laser light from electrons circulat- ing in the 2.5 - 3.0 GeV X-ray storage ring. Fluxes of -10 y/sec (200 mA, 2.5 GeV) are obtained but vary depending on the laser used, electron current and ring energy. Photons are tagged by detecting the scattered electrons in a spectrometer incorporated into the storage ring (tagging efficiency = 100%). Linear and circular polarization of >75% are available. Experimental Apparatus High energy gamma spectrometer; liquid hydrogen/deuterium target; XTAL-BOX (400 element sodium iodide array). Computer System Hardware and Software MircoVAX II computer with a 70 MB disk and two Eagle 340 MB disk drives, and a CAMAC based data collection system using the LANL "Q" system; tape drive, graphics terminal; data acquisition software based on CAMAC.

January 28, 1993

-X5- Beamline: X6A Ring: X-Ray Operational Status: Commissioning Operational by 9/93

Pariticipating Institutions: Argonne National Laboratory, Brooklyn College of CUNY Local Contact: Peter Lee (516)282-5934, 3955 @ BNL e-mail: [email protected] Spokesperson: Pedro A. Montano (708)252-6239 @ Argonne National Laboratory Research Program: Time and space resolved dispersive X-ray spectroscopy

Expected Values Total Horizontal Energy Angular Range Crystal Resolution Flux Spot Size Acceptance (keV) type (AE/E) (photons/sec) (mm) (mradians) 6.5 - 20 Si(220) 5.0

Optical Configuration Polychromator Horizontally deflecting wide bandpass (about 1 keV) monochromator. Mirror Rhodium coated flat mirror for harmonic rejection. Experimental Apparatus Array photo diode detector for data collection and computer controlled translation slides for independent sample and detector positioning. Computer System Hardware and Software Macintosh Ilfx computer with National Instruments NB-MIO-16, NB-DMA-2800 and NB-A2000 interface cards. LabView and MacApp based control software. March 18,1993

-X6A- Beamline: X6B Ring: X-Ray Operational Status: Operational

Participating Institutions: Argonne National Laboratory, Brooklyn College of CUNY, Northwestern U., Temple U., BP America, Eastman Kodak Co. Local Contact: Kegang Huang (516)282-5498, 5706 @ BNL e-mail: [email protected] Spokesperson: Pedro A. Montano (708)252-6239 @ Argonne National Laboratory Research Program: X-ray scattering

Expected Values Total Horizontal Energy Angular Range Crystal Resolution Flux Spot Size Acceptance (keV) Type (AE/E) (photons/sec) (mm) (mradians) 2.4 - 10.0 Si(lll) 2x 10"4 2x 1011 0.7H x 0.7V 5.0 (focused) @8keV @ 8keV (focused) (100 mA, 2.5 GeV) 2.4 - 21.0 (focused) 40H x 5.0V (unfocused) (unfocused)

Optical Configuration Monochromator Double flat crystal monochromator with fixed entry and exit of 1" offset; located 10 meters from the source. Focusing Mirror Bent cylindrical rhodium coated fused silica mirror for 1:1 focusing at sample; located 12 meters from the source. Experimental Apparatus Radiation hutch with exhaust system; 6 circle 5020 Huber diffractometer with vertical scattering geometry; computer controlled table for Huber; ion chambers; Nal detectors. Computer System Hardware and Software 386 computer running DOS O/S or Interactive UNIX; connected as an Internet node; laser printer, EXASCAN (DOS) and SPEC/CPLOT (UNIX); CAMAC interface for beamline control and data acquisition.

March 23, 1993

-X6B- Beamline: X7A Ring: X-Ray Operational Status: Operational

Participating Institutions: Air Products, Alfred U., Amoco, BNL - Physics Dept., Carnegie Inst. of Washington, DuPont, Mobil, NSLS, SUNY at Stony Brook, U. of California at Santa Barbara, U. of Pennsylvania, UOP/Union Carbide Local Contact: David Cox (516)282-5607, 3818 @ BNL e-mail: [email protected] Spokesperson: David Cox Research Program: Structural characterization by powder diffraction techniques

Total Typical Horizontal Energy Beam Size Angular Range Crystal Resolution Flux at Sample - unfocused Acceptance (keV) Type (AE/E) (photons/sec) (mm) (mradians) 5 -20 Si(lll) 2X10"4 1 x io'° @ 8 keV 8.0H x 1.0V 1 4 x 109 @ 18 keV

11 -20 Ge(lll) 4X10-4 2x 10108keV 8.0H x 1.0V 1

5-45 White Beam 1-2 x 10"2 5 x 10^/keV @ 10 keV O.lHxO.lV 1 4 x 1012/keV @ 20 keV 5x 10n/keV@ 30keV

Optical Configuration a) Monochromator Mode Water-cooled channel-cut double-crystal monochromator scattering in vertical plane., located in hutch 16 meters from source; sample scattering in vertical plane. Incident beam size defined by remote-controlled variable slits with resolution of 0.2 nm. b) White Beam Mode Sample located 16 meters from the source and scattering in horizontal plane. Experimental Apparatus Radiation hulch; two circle Huber 0 - 20 goniometer system with vertical axis with xyz transla- tions and two horizontal arcs; 20 goniometer carries a horizontal arm on which is mounted a four circle Huber diffractometer scattering in the vertical plane with an analyzer (able and detector arm; analyzer crystal typically Ge(220); Ge(Ill), Si(lll) anJ Si(220) also available; ionization chamber; scintillation detector; Ge semiconductor detector; DISPLEX cryostat (15 - 300 K); Can- berra system 100 MCA; LeCroy Model 3512 ADC (8K channels) with 1 MHz histogramming memory; furnaces; linear multi-wire proportional position sensitive detector (up to 4 bar gas pres- sure). Computer System Hardware and Software Micro-VAX II computer; 500 MB CDC disk; 9-track magnetic tape drive; VMS operating system; CAMAC interface; HDS 3200 graphics terminals; Canon LBP-8III laser printer; extensive library of powder diffraction analysis programs available.

January 27, 1993

-X7A- Beamline: X7B Ring: X-Ray Operational Status: Operational

Participating Institutions: BNL - Chemistry Dept, U. of Pittsburgh, Swedish Research Council, U. of Helsinki Local Contact: Jon Hanson (516)282-4378, 5707 @ BNL e-mail: [email protected] Spokesperson: Thomas Koetzle (516)282-4384 @ BNL Research Program: Crystallography, wide angle scattering

Total Horizontal Energy Spot Size Angular Range Crystal Resolution Flux - focused Acceptance (keV) Type (AE/E) (photons/sec) (mm) (mradians) 5-21 Si(lll/311) 2X10"4 6x 1011 0.3 x 0.3 mm2 2 @ 10 keV 1% variation (500 mA, 2.5 GeV) for intensity

Optical Configuration a) Mirror No. 1 Spherical rhodium coated silicon carbide mirror; for vertical focusing; grazing angle of 3 mradi- ans; located 5 meters from the source (to be installed at a future date). b) Monochromator Double flat crystal monochromator in ultra-high vacuum; first crystal is water-cooled; crystal movement in two ranges from 8.5° - 15° and from 13.5° - 70° Bragg angle; piezoelectric adjust- ment of second crystal; located 8 meters from the source. c) Mirror No. 2 Cylindrical aluminum mirror with nickel plating coated by rhodium; mirror bender for horizontal focusing of 2 mradians; grazing angle of 3 mradians; optics designed to give a beam intensity of 1% homogeneity over an area of 0.3 x 0.3 mm at 22 meters from source; located 13 meters from the source. Experimental Apparatus Radiation hutch; four circle Huber diffractometer with crystal analyzer; xyz lift table with 500 - 800 lbs. capacity; DISPLEX two-stage refrigerator (10° - 400°K); diffusion pump station; scintil- lation and ionization detectors; linear detector with 120° range available by discussion with PRT members. Computer System Hardware and Software MicroVAX II computer, VMS operating system, 440 MB of disk storage, 8 MB of memory; Regis graphics terminals; printers; complete data acquisition and analysis software written in FORTRAN.

March 12, 1993

-X7B- Beamline: X8A Ring: X-Ray Operational Status: Operational

Participating Institutions: Los Alamos National Laboratory, EG&G/EM, Harvard/Smithsonian Astrophysical Observatory Local Contact: Michael Sagurton (516)282-5708 @ BNL e-mail: bnlx8a::sagurton Spokesperson: Richard Blake (505)667-7369 @ LANL e-mail: xlab::081042 bnlx8a::blake Research Program: Photoionization cross-sections, detector calibrations, mirror reflectivities, photoelectron spectroscopy, x-ray spectroscopy

Total Horizontal Energy Flux Angular Range Crystal Resolution (photons/sec Spot Size Acceptance (keV) Type (AW) @ 150 mA, 2.5 GeV) (mm) (mradians) 5xl0 1 2.1 - 5.9 Si(lll) lO ^ @ 5 keV 1HX3V 4 0.8 - 2.0 Beryl(lOlO) 8 x iff*1 3x ^'(S^.SkeV 0.26 - 2.0 W/Si Mulilayers 2 x 10"z

Note: angular divergence at focus is 4 mrad horizontal (reduction slits to be added when possible) and ~1 mrad vertical. Optical Configuration a) Mirror No. 1 Nickel coated fused quartz cylindrical mirror, bent to form an ellipse, 50 mm wide x 900 mm long; 10 mradian incidence angle; 5.9 keV cutoff; located 7.5 meters from the source; focuses at the sample 21.4 meters from the source. b) Monochromator Double" flat crystal monochromator; crystal tray holds 3 crystal pairs which can be translated into the beam in situ; Bragg angles from 75° to 15° (down to 7° for longer crystals); exit beam height changes with Bragg angle (max. 18 mm); stepping motor driven differential screw for fine tuning (detuning) of crystals; located 19 meters from the source. Experimental Apparatus No radiation hutch or permanent end-station. User supplied end-station will normally form con- tiguous vacuum with the storage ring and must achieve clean high vacuum <2 x 10 torr. By special arrangement, end stations which operate at up to 1 atm. are permitted if separated from the beamline vacuum by a user supplied window. Lift table or actuator stands for vertical trans- lation of the end station may be available by special arrangement. Computer System Hardware and Software DEC MicroVAX II computer; VMS operating system; nine-track magnetic tape drive; CAMAC interface; PC control also permitted.

February 24, 1993

-X8A- Beamline: X8C Ring: X-Ray Operational Status: Operational

Participating Institutions: Los Alamos National Laboratory, Sandia National Laboratory, Lawrence Livermore National Laboratory, U. of California, Argonne National Laboratory Local Contact: Randy Alkire (516)282-5608 @ BNL e-mail: [email protected] Spokesperson: Bob Hockaday (505)667-5748 @ Los Alamos National Laboratory Ed Westbrook (708)252-3983 @ Argonne National Laboratory Research Program: Diffraction from biological macromolecules, detector calibrations

Total Horizontal Energy Angular Range Crystal Resolution Flux Spot Size Acceptance (keV) Type (AE/E) (photons/sec) (mm) (mradians) 5-20 Si(lll) 9 x 10'4 1011 0.7H x 1.0V 2.3 @ 10 keV (focused) (200 mA, 2.5 GeV) 5-20 Si(220) 3.5 x 10"4 1011 @ 10 keV (200mA, 2.5 GeV)

Optical Configuration a) Pre-Monochromator Collimating Mirror Bent flat, rhodium coated fused quartz mirror, 80 mm wide x 900 mm long; high energy cutoff set to 20 keV; located 9 meters from the source. b) Monochromator Two crystal monochromator (non-dispersive geometry) with Si(lll) crystals; beam position moves vertically as energy is changed; located 12.1 meters from source. c) Post-Monochromator Focusing Mirror Cylindrical fused quartz mirror 80 mm wide x 900 mm long, rhodium coated; mechanical bend- ing in the vertical direction to approximate a toroid. The mirror is located 14.5 meters from the source; the focal point is centered in the hutch and is located 27.5 meters from the source. Experimental Apparatus Radiation hutch; ion chamber for detecting I ; lift table for sample adjustment; six circle goniom- eter; CCD area detector. Computer System Hardware and Software VAX 4000's using VMS operating system; Silicon Graphics UNIX workstations; "MADNES" software for processing area detector data; CAMAC interface; Internet access.

January 14, 1993

-X8C- Beamline: X9A Ring: X-Ray Operational Status: Operational mid-'93

Participating Institutions: National Biostructures Research Resource Local Contact: Ke Zhang (215)386-1912 @ University City Science Center e-mail: [email protected] Spokesperson: Ke Zhang Research Program: XAS

Flux Energy Bandwidth @ E=10 keV Range Crystal @ E=10 keV 1=200 mA Size of Focus (keV) Type (eV) (photons/sec) (mm) 3.4- 11.4 Si(lll) 3 5 x ioj; 0.5H x 0.3V 5.5 - 18.6 Si(220) 2 2xlOu 0.5H x 0.3V

For 2 mm vertical and 50 mm horizontal beam aperture in the hutch. Horizontal width up to 200 mm possible. Optical Configuration Monochromnfor Double crystal monochromator with fixed exit geometry; Bragg angle range is 10° - 35°; located 10 meter;, from source, otherwise same as X9B; sagittal focusing by end of 1993. Mirror For harmonics rejection and vertical focusing; flat cylindrically bent aluminum mirror plated with nickel, 800 mm long, 200 mm wide; independent choice of mirror angle and focal length; located 11.4 meters from source; magnification 0.20-0.46. Experimental Apparatus Radiation hutch located 13 meters from source, 3 meters long, 2.5 meters wide; computer con- trolled X-Y aperture and X-Y translation stage (100 lbs. load capacity); transmission ion chambers with electronics (amplifiers, V/F converters, sealers). Computer System Hardware and Software Beamline control and data acquisition to be determined; data analysis same as X9B

March 11, 1993

-X9A- Beamline: X9B Ring: X-Ray Operational Status: Operational

Participating Institutions: National Biostructures Research Resource Local Contact: Robert Fischetti (215)386-1912 @ University City Science Center e-mail: [email protected] Spokesperson: Kent Blasie (215)898-6208 @ U. of Pennsylvania Research Program: Scattering, diffraction, XAS

Flux Energy Bandwidth @ E=10 keV Size of Range Crystal @ E=10 keV 1=200 mA focus (keV) Type (eV) (photons/sec) (mm) 2.1 - 11.4 Si(lll) 3 sxio;; 0.5H x 0.3V 3.4 - 18.8 Si(220) 2 2x 1011 0.5H x 0.3V

For 2 mm vertical and 50 mm horizontal beam aperture in hutch. Horizontal width up to 200 mm pos- sible. Optical Configuration Monochromator Double flat crystal monochromator with fixed exit geometry; Bragg angle range is 10° - 72°; or flat Si(lll) and Si(220) crystals operated side-by-side, each 100 mm wide; sagitally focusing Si(lll) crystals (magnification 0.23-0.40); high precision rotary energy scale; operates in high vacuum; located 16.5 meters from the source. Mirror For harmonics rejection and vertical focusing (0.3 mm FWHM); flat cylindrically bent mirrors; independent choice of mirror angle and focal length; located 18.2 meters from the source; magnification 0.13-0.29. Experimental Apparatus Radiation hutch located 20 meters from the source; 4 meters long and -3 meters wide; computer controlled X-Y aperture and X-Y translation stage (100 lbs. load capacity); three transmission ion chambers with electronics (amplifiers, V/F converters, sealers). Computer System Hardware and Software Beamline control and data acquisition: PDP 11/23+ computer with CAMAC interface; 512K memory; three RL02 disk drives, 9-track 1600 bpi tape drive, dot matrix printer for screen dump, RSX-11M operating system. Data analysis: microVAX, 5MB memory, 140MB fixed drive, 9- track 1600 bpi tape drive, Ethernet, Postscript laser printer, VMS operating system.

March 11, 1993

-X9B- Beamline: X10A Ring: X-Ray Operational Status: Operational

Participating Institutions: Exxon Research and Engineering Local Contact: Kim Mohanty (516)282-5644, 5610 @ BNL Spokesperson: Keng Liang (908)730-3032 @ Exxon Research Program: Scattering, small angle scattering, diffraction, crystallography

Total Horizontal Energy Spot Size Angular Range Crystal Resolution Flux - focused Acceptance (keV) Type (AE/E) (photons/sec) (mm) (mradians) 2 - 15.2 Gc(lll) 6x 10"4 ~1012 (theoreL) 0.8H x 0.6V 3 @ 10 keV (70 mA, 2.5 GeV)

Optical Configuration a) Mirror Platinum coated fused silica toroidal mirror for 1:1 focusing at sample located 24 meters from source; sagittal radius is 68.4 mm, meridional radius is 2100 meters; grazing angle of incidence is 5.7 mradians; mirror may be lowered away from the incident beam path; located 12 meters from the source. b) Monochromator Double flat crystal monochromator (Golovchenko type); piezoelectric driver with feedback keeps crystals in parallel alignment; crystal movement ranges from 7° - 68° Bragg angle; located 22.5 meters from the source. - vertical and horizontal slits located before mirror and monochromator may be positioned in 3 \xm steps. - a set of six attenuators can be remotely inserted into the beam after the monochromator. Experimental Apparatus Radiation hutch; six circle Huber diffractometer; ion chambers; Bicron scintillation detectors. Computer System Hardware and Software X10A is supported by a VAX/VMS system interfaced through a KS-3922 controller which runs SUPER and EXXTAL experimental data acquisition programs along with a variety of beamline component calibration programs which include motorized slit control. X10A is also interfaced to a UNIX/PC with a DSP-6002 crate controller running SPEC data acquisition software. CPLOT is available for analysis.

March 11, 1993

-X10A- Beamline: X10B Ring: X-Ray Operational Status: Operational

Participating Institutions: Exxon Research and Engineering Local Contact: Baoshan Zhang (516)282-3553, 5710 @ BNL Spokesperson: Keng Liang (908)730-3032 @ Exxon Research Program: Crystallography, scattering

Total Horizontal Energies Spot Size Angular -fixed Crystal Resolution Flux - focused Acceptance (keV) Type (AE/E) (photons/sec) (mm) (mradians) 11 8 Ge(lll) ~6xioj 2 A 10 lHx IV 2 12 Ge(220) -3 x 10"4 @ 11 keV (70 mA, 2.5 GeV)

Optical Configuration a) Mirror Platinum coated Zerodur flat mirror bent to focus in the vertical; mirror is located 14 meters from the source and has a focal point at 18 meters from the source. b) Monochromator Bent crystal monochromator with Si(lll) crystals asymmetrically cut to collect the horizontal and focus it 18 meters from the source. Experimental Apparatus Radiation hutch; six circle Huber diffractometer; ion chambers; Bicron scintillation detectors. Computer System Hardware and Software XI0B is supported by a VAX/VMS system interfaced to a KS-3922 CAMAC controller which runs SUPER and EXXTAL experimental data acquisition programs along with a variety of beam- line component calibration programs which include motorized slit control. X10B is also inter- faced to a DSP-6002 crate controller connected to a UNIX/PC running SPEC and CPLOT.

March 11,1993

-X10B- Beamline: X10C Ring: X-Ray Operational Status: Operational

Participating Institutions: Ex7ton Research and Engineering Local Contact: Mike Sansone (516)282-5759, 3265 @ BNL Spokesperson: George Meitzner (908)730-2795 @ Exxon Research Program: EXAFS

Total Horizontal Energy Spot Size Angular Range Crystal Resolution Flux - focused Acceptance (keV) Type (AE/E) (photons/sec) (mm) (mradians) 3.5 - 24.7 Si(220) 1 x 10"4 -1010 10H x 0.5V 3 @ 10 keV (100 mA, 2.5 GeV)

Optical Configuration a) Mirror Rhodium coated cylindrically bent mirror; sagittal radius is 80 mm and meridional radius is tun- able; the mirror is located 12 meters from the source and focuses vertically on the sample located at 21 meters; the mirror is positioned after the monochromator and is used as a harmonic rejec- tion filter where the rejection energy is adjusted by changing the grazing incidence angle of the mirror; vertical and horizontal slits are located before the monochromator. b) Monochromator Double flat crystal monochromator located 10.2 meters from the source; a piezoelectric driver using an A/C feedback system locks on the peak of the Darwin rocking curve; vertical and hor- izontal slits with 3 inn resolution are located before the monochromator. Experimental Apparatus Radiation hutch, ion chambers and current amplifiers. Computer System Hardware and Software The X10C beamline is controlled by a MicroVax II computer system running VMS and is inter- faced to a Kinetic Systems 3922 crate controller; EXAFS data collection software allows the user to set up and manage experimental parameters and collect data in a variety of configurations; analysis is primarily performed using EXAPLT which also provides a real-time plotting capabil- ity.

March 11, 1993

-X10C- Beamline: XI1A Ring: X-Ray Operational Status: Operational

Participating Institutions: North Carolina State U, U. of Connecticut, BNL, U. of Washington, Mobil, Dupont, Hoechst-Celanese, Notre Dame U., Georgia Tech. U., Lawrence Livermore Laboratory, Illinois Inst. of Tech., Naval Research Laboratory, Case Western U. Local Contact: Gerry Lamble (516)282-7734, 5611 @ BNL e-mail: [email protected] [email protected] Spokesperson: Dale Sayers (919)515-3482 @ North Carolina State U. Research Program: EXAFS

Total Horizontal Energy Spot Size Angular Range Crystal Resolution Flux - unfocused Acceptance (keV) Type (AE/E) (photons/sec) (mm) (mradians) 4.5 - 26 Si(lll) 2X10"4 1 x 1010 10H x 0.5V 0.5 @ 10 keV - unfocused (100 mA, 2.5 GeV) 8 -35 Si(311) 2 x 10*4 5x 108 10H x 0.5V 0.5 @ 25 keV - unfocused (100 mA, 2.5 GeV)

Optical Configuration Monochromator Double flat crystal; non-fixed exit; hutch table tracks with beam height; first crystal is cooled; Bragg angle range from 5° to 80°; located 12 meters from the source. Experimental Apparatus Radiation hutch; ion chambers for detecting I I and fluorescence; horizontal and vertical adju- stable sample stand (-40 lbs. capacity); liquid N^ Dewar 80°K. Computer System Hardware and Software IBM PS/2 80 with 1.4 MB 3.5" diskette drive running OS/2; laser printer for hardcopy; connec- tion between PC and beamline MicroVAXII; 1/2" mag tape drive; data acquisition software allowing various types of scans including operation of user stepping motors; data analysis package for plotting and EXAFS analysis up through background subtraction; DECnet and TCP/IP network connections.

February 11, 1993

-XI1 A- Beamline: X11B Ring: X-Ray Operational Status: Commissioning Operational Fall '94

Participating Institutions: North Carolina State U., U. of Connecticut, BNL, U. of Washington, Mobil, Dupont, Hoechst-Celanese, Notre Dame U., Georgia Tech. U., Lawrence Livermore Laboratory, Illinois InsL of Tech., Naval Research Laboratory, Case Western U. Local Contact: Gerry Lamble (516)282-7734, 5611 @ BNL e-mail: [email protected] [email protected] Spokesperson: Dale Sayers (919)515-3482 @ North Carolina State U. Research Program: EXAFS

Expected Values Total Horizontal Energy Spot Size Angular Range Crystal Resolution Flux - focused Acceptance (keV) Type (AE/E) (photons/sec) (mm) (mradians) 2-8 Si(lll) 2x 10"4 1 x 1011 2.0H x 2.0V 5.0 @4keV - focused (100 mA, 2.5 GeV) 1.7-8 InSb(lll) 2 x 10"4 0.5 x 1011 2.0H x 2.0V 5.0 @4keV - focused (100 mA, 2.5 GeV)

Optical Configuration a) Monochromator Double flat crystal fixed exit monochromator operating at UHV; crystal carousels capable of hold- ing four pairs of crystals which may be switched in UHV; first crystal of each pair is water- cooled; cover 8° - 70° Bragg angles; located 12 meters from the source. Monochromator to be replaced in Fall/Winter 1993. b) Mirror Toroidal aluminum mirror coated with platinum, used to focus beam at sample 24 meters from the source; collects 6 mradians; operates at a 10 mradian glancing angle: high energy cutoff is 8 keV; located 13 meters from the source. Experimental Apparatus Radiation hutch; ion chambers for detecting I I and fluorescence. Computer System Hardware and Software IBM PS/2 80 with 1.4 MB 3.5" diskette drive running OS/2; laser primer for hardcopy; connec- tion between PC and beamline MicroVAXII; 1/2" mag tape drive; data acquisition software allowing various types of scans including operation of user stepping motors; data analysis package for plotting and EXAFS analysis up through background subtraction; DECnet and TCP/IP network connections.

February 11, 1993

-XI IB- Beamline: X12B Ring: X-Ray Operational Status: Operational

Participating Institutions: BNL - Biology Department, NSLS Local Contact: Malcom Capel (516)282-5712, 2792 @ BNL e-mail: [email protected] [email protected] Spokesperson: Malcolm Capel Research Program: Time-resolved and static x-ray diffraction of macromolecular systems in both wide and small angle regimes

Energy Spot Size Total Horizontal Range Crystal Resolution Flux - focused Angular Acceptance (keV) Type (AAA) (photons/sec) (FWHH, mm) (mradians) 6- 15 Si(lll) <10'3 1012 (max.) 0.3H x 0.3V 3 (max.) @ 14 keV (250 mA, 2.5 GeV)

Optical Configuration a) Mirror No. 1 - Collimating Toroid 1:1 defocused rhodium-coated silicon carbide; 480 mm long by 10 mm wide; focal point -7 meters from tangent point; located -3.5 meters from tangent point; nominal angle of incidence 3 mradians; major radius 1.4 km; minor radius 10.7 mm. Function: focus primary beam on aperture ladder midway between Mirror 1 and Mirror 2 thereby moderating effects of horizontal diver- gence on delivered flux. b) Aperture Block Vertical array of circular apertures milled into a water cooled copper block; located at focal point of Mirror 1; aperture diameter range 20-3000 urn. c) Monochromator Double flat crystal fixed-exit monochromator using Si(lll) flats; leading crystal water cooled; second crystal orientation feedback-controlled through a piezoelectric translator; operates in two angular ranges - 8° to 15° and 13.5° to 70° Bragg angle; angular resolution

-X12B- -2-

programmed with detector time slicing cycle. d) Sample handling devices: 3-circle goniometer; fluid sample changer, capacity is 22 samples; 1 mm path length; volume is SO (_U; Klinger rail for mounting user supplied handlers. Fluid sample changer also handles carriers for mounting films, compressed powders or other solid phases. Stopped flow device, 2 msec mixing dead time, 2-3 fluid channels. Computer System Hardware and Software All instrument and experimental control effected from graphically-driven programs executing on PC-compatible 486 class machine (DOS). Data flow and reduction handled by combination of DEC VAXstation 3600 (VMS) and Silicon Graphics Iris-crimson (IRIX).

March 18, 1993

i

i -X12B- Beamline: X12C Ring: X-Ray Operational Status: Operational

Participating Institutions: BNL - Biology Department Local Contact: Robert Sweet (516)282-5712, 5642, 3401 @ BNL e-mail: bnlcl6::sweet Spokesperson: Robert Sweet Research Program: Protein crystallography

Total Horizontal Energy Flux Spot Size Angular Range Crystal Resolution - mirror unbenL - focused Acceptance (keV) Type (AE/E) (photons/sec/mm^ (mm) (mradians) 7- 13 Si(lll) 1 x 10"3to 4 x 1010 (meas.) 0.6H x 0.6V 2 1 xlO"4 @ 7- 11 keV - may be slitted (80 mA, 2.5 GeV) to smaller dimensions

Optical Configuration a) Monochromator A pair of single flat crystal monochromators; incidence angle adjustable about horizontal axis for first crystal; second crystal rotates in parallel to the first and has fixed exit geometry; stepping motor controls real-time adjustment of wavelength in 0.5 eV increments; located 7.6 meters from the source. b) Mirror Aluminum electroless nickel-plated rhodium-coated cylindrical 1:1 focusing mirror; focal point at x-ray film 18 meters from source; glancing angle is 2 mradians; high energy cutoff is 25 keV; bending provides vertical focusing; located 9 meters from the source. Experimental Apparatus In mid-1993 an x-ray storage-phosphor-based diffractometer for virus and protein crystallography will be installed. The detector will have been produced by MAR Diffraction Research of Ham- burg, Germany. It will have a 300mm diameter sensitive area, digitized to a 2000 x 2000 square array. The detector itself will be mounted on a kappa-axis goniometer for easy orientation of specimens. There will also be a liquid-nitrogen temperature specimen cooler. A biochemical wet lab is adjacent to the beamline. Computer System Hardware and Software There is a local area cluster of Silicon Graphics workstations with ample mass-storage devices.

January 25, 1993

-X12C- Beamline: X14A Ring: X-Ray Operational Status: Operational

Participating Institutions: Oak Ridge National Laboratory - Oak Ridge Institute for Science and Education, Dow Chemical Company, University of Illinois MRL Local Contact: Paul Zschack (516)282-5614, 2583 @ BNL e-mail: [email protected] bnlxl4::zschack Spokesperson: Paul Zschack Research Program: Scattering, crystallography, spectroscopy

Total Horizontal Energy Spot Size Angular Range Crystal Resolution Flux - focused Acceptance (keV) Type (AE/E) (photons/sec) (mm) (mradians) 3.5 - 40 Si(lll) 2x 10"4 9x 1011 1.5H x 1.0V 5 @ 8keV (223 mA, 2.5 GeV)

Optical Configuration a) Mirror Platinum coated flat aluminum mirror of cantilever design; 700 mm long x 120 mm wide; vari- able vertical focusing or collimat'on; incident angles between 1 and 10 mradians; located 7.5 meters from the source; can be removed for high energy operation. b) Monochromator Horizontally focusing double crystal monochromator; adjustable focal point from 13.3 - 30 meters from source; first crystal is water-cooled and flat; second crystal is conically bent; located 9.3 meters from the source. Experimental Apparatus Radiation hutch; six circle Huber diffractomeler with split chi-ring, crystal analyzers (Si, Ge, LiF, graphite crystals); SiLi solid state detector; CAMAC multi-channel analyzer; sample chambers for polycrystalline and gaseous materials; microprobe pinholes down to 0.5 \m diameter; scintillation and proportional counters. The following equipment is available only by special arrangement with the PRT: Displex cryostat, linear sensitive proportional counter and hemisherical Be dome. Computer System Hardware and Software Data acquisition and data analysis by a MicroVAX computer with VMS operating system; CAMAC modules; various 6-20 and reciprocal space scan routines; DAS data acquisition sys- tem routines. Customized scan features may be possible - consult with PRT representative.

January 15, 1993

-X14A- Beamline: X14B Ring: X-Ray Operational Status: Conceptual

Participating Institutions: Oak Ridge National Laboratory, Oak Ridge Institute for Science and Education, AT&T, Dow Chemical Company, IBM Local Contact: Paul Zschack (516)282-5614, 2583 @ BNL e-mail: [email protected] bnlxl4::zschack Spokesperson: Paul Zschack Research Program: Micro-diffraction, x-ray microprobe, x-ray micro-focusing

Total Horizontal Energy Spot Size Angular Range Crystal Resolution Flux - focused Acceptance (keV) Type (AE/E) (photons/sec) Gun) (mradians) White Beam <1 <0.3

Optical Configuration A water-cooled pinhole (selectable for lmm x lmm to 0.025mm x 0.025mm) will be inserted into the front-end, 3.5 meters from the bending magnet source. A white beam hutch will permit monochromator and/or micro-focusing optic insertion. In-hutch focusing methods include zone- plate, Kirkpatrick-Baez mirror, and capillary designs. Experimental Apparatus Under consideration. Computer System Hardware and Software Under consideration.

January 15, 1993

-X14B- Beatnline: X15A Ring: X-Ray Operational Status: Operational

Participating Institutions: Argonne National Laboratory, Harvard U. Local Contact: Gregg Franklin (516)282-5615, 2686 @ BNL e-mail: [email protected] [email protected] Spokesperson: Michael Bedzyk (708)252-7763 @ ANL Research Program: X-ray standing waves

Total Horizontal Energy Spot Size Angular Range Crystal Resolution Flux - unfocused Acceptance (keV) Type (AE/E) (photons/sec) (mm) (mradians) White Beam White Beam White Beam White Beam 200Hx2V 15 3 -20 Si(lll) 2x 10"4 1 x 1011 15H x 2V 1 -2 Si(220) @8keV - unfocused Si(400) 500 mA, 2.5 GeV

Optical Configuration Monochromator Double parallel flat crystal monochromator located in hutch; asymmetric crystals available; all axes under individual computer control; piezo-crystals for fine tuning and feedback control; space in front of monochromator for white beam. Experimental Apparatus Radiation hutch suitable for white beam mode; UHV X-ray standing wave apparatus; facilities for UHV in situ specimen preparation; LEED and Auger for surface analysis. Computer System Hardware and Software Two AT&T PC6300's (IBM PC compatible - one operates microstepper motors for adjusting the monochromator and the other supports experimental data acquisition); a PC6386 AT&T is dedi- cated to data processing and analysis; PC peripheral interface with printer; experimental control software in BASIC, FORTRAN and C languages supported.

February 10,1993

-X15A- Beamline: X15B Ring: X-Ray Operational Status: Operational

Participating Institutions: AT&T Bell Labs Local Contact: Alastair MacDowell (516)282-5334 @ BNL Spokesperson: Paul Citrin (908)582-5275 @ AT&T Bell Labs e-mail: [email protected] Research Program: SEXAFS, EXAFS

Total Horizontal Energy Spot Size Angular Range Crystal Resolution Flux - focused Acceptance (keV) Type @Er (AE/E) (photons/sec) (mm) (mradians) 1.5 - 15 Si(lll) 2x 10"4 2x 1011 ~lHx IV 5 @ 5 keV (E ) @ <3 keV (100 mA, 2.5 GeV)

Other crystals to be used include: beryl(lOlb), InSb(l 11), Ge(l 11), Si(220) Optical Configuration a) Mirror No. 1 Cylindrical platinum coated aluminum mirror; mirror is cooled; mirror collimates beam onto first crystal of monochromator; incidence grazing angle (0.4° to 1.5° range) can be adjusted to discriminate against harmonics; located 8 meters from the source. b) Monochromator Double flat crytal UHV-compatible monochromator with fixed-exit geometry; first crystal is cooled; Bragg angle range from 10° to 80°; located 10 meters from the source. c) Mirror No. 2 1:1 focusing platinum coated aluminum toroidal mirror for focusing beam onto sample in XI SB- owned UHV chamber 22 meters from source with 0.4° incidence grazing angle. Changing this angle slightly refocuses beam >22 meters into General User-supplied end station/UHV chamber. Experimental Apparatus An independent end station supplied by the General User and approved by the X15B Spokesper- son may be installed downstream of the existing beamline ultra-high vacuum chamber. Details regarding flange sizes, etc. may be obtained from the Spokesperson. All software and I - normalization equipment is available to the General User. Computer System Hardware and Software AT&T PC6386 computer with 68 MB disk and floppy; associated software and graphics.

January 12,1992

-X15B- Beamline: X16A Ring: X-Ray Operational Status: Operational

Participating Institutions: AT&T Bell Labs, U. of Illinois Local Contact: Peter Eng (516)282-5793, 5616 @ ENL e-mail: [email protected] Spokespersons: Ken Evans-Lutterodt (908)582-2154 @ AT&T (516)282-2125 @ BNL Paul Fuoss (908)5824951 @ AT&T Bell Labs Research Program: Surface diffraction

Total Horizontal Energy Spot Size Angular Range Crystal Resolution Flux - focused Acceptance (keV) Type (AE/E) (photcns/sec) (mm) (mradians) 4- 12 Si(lll) 1 x 10"3 2 x 1010(meas.) 1.0H x 1.5 V 5 @ 8.4 keV (meas.) (100 mA, 2.5 GeV)

Optical Configuration a) Mirror 1:1 platinum coated cylindrically cut bent focusing quartz mirror, focal point will be at sample in surface chamber located 25.8 meters from source; horizontal acceptance is 5 mradians; pre-mirror vertical slits and horizontal aperture adjust beam dimensions; mirror located 12.9 meters from the source. b) Monochromator Variable energy constant offset double flat crystal monochromator (Golovchenko/ Cowan design); operates at 10" Torr; lock-in tuning system scannable over 300 eV range; range of incident angle is 7° - 60°; located 22 meters from the source. Water cooled crystal holder available for Si(l 11). Experimental Apparatus Radiation hutch with adjustable optical table; incident beam flight path; motorized slits; ion chamber; scintillation detectors; crystal analyzer; Soller slits. Potential collaborators may have access to the following only through specific agreement with the PRT members: UHV surface diffraction chamber consisting of a four circle Huber diffractometer integral with a sample preparation chamber (LEED/Auger, ion sputtering, residual gas analysis). Computer System Hardware and Software 486/33 MHz PC running MS/DOS with SUPER software; terminals, printer and plotter.

March 16, 1993

-X16A- Beamline: X16B Ring: X-Ray Operational Status: Operational

Participating Institutions: AT&T Bell Labs Local Contact: Alastair MacDowell (516)282-5716, 5334 @ BNL Spokesperson: Eric Isaacs (908)582-7261 @ AT&T (516)282-5793 @ BNL e-mail: [email protected] Research Program: Diffraction

Total Horizontal Energy Spot Size Angular Range Crystal Resolution Flux - focused Acceptance (keV) Type (AE/E) (photons/sec.) (mm) (mradians) 7.85 Ge(lll) 1 x 10"4 2 x 1010 0.5H x IV 2 @ 7.85 keV (100 mA, 2.5 GeV)

Optical Configuration Monochromator Horizontal fixed energy single bent asymmetric crystal monochromator; horizontal and vertical beam acceptance defined by adjustable slits located upstream; tunable over 100 eV range in region from 6.7-8.7 keV; one-to-one mirror for vertical focusing; monochromator located 22 meters from the source. Experimental Apparatus Radiation hutch; six circle Huber diffractometer in a vertical scattering configuration; entrance and exit slits define beam; scintillation detectors; crystal analyzer with polarization analysis; sam- ple located 26 meters from the source. Computer System Hardware and Software AT&T 6386 computer using DOS operating system with SUPER software and online plotting and fitting routines.

March 25, 1993

-X16B- Beamline: X16C Ring: X-Ray Operational Status Beamline currently being upgraded; Ops. expected July '93

Participating Institutions: AT&T Bell Labs Local Contact: Alastair MacDowell (516)282-5334, 5716 @ BNL Spokesperson: Walter Brown (908)582-3941 @ AT&T e-mail: [email protected] Research Program: Diffraction, novel spectroscopy

Total Horizontal Energy Spot Size Angular Pange Crystal Resolution Flux - unfocused Acceptance (keV) Type (AE/E) (photons/sec.) (mm) (mradians) 3- 16 Si(lll) 5x 10"4 1010 (meas.) 25H x 2V 2.0 (max.) @ 8keV (hor. adjustable) (50 niA, 2.5 GeV) to max. of 25 mm)

Optical Configuration Monochromator Scanning two-crystal parallel setting monochromator with non-constant offset located 13 meters from the source, upstream of the radiation hutch and downstream of a Be window. Experimental Apparatus White radiation hutch, adjustable optical table (linked by software to the monochromator scan), incident beam (light paths, motorized slits, ion chambers, scintillation detectors and associated electronics. Computer System Hardware and Software PC/CAMAC based system with SUPER software and online plotting and fitting routines for diffraction; also EXAFS scanning software.

March 25, 1993

-X16C- Beamline: X17B1 Ring: X-Ray Operational Status: Operational

Insertion Device Team: NSLS, SUNY at Stony Brook, U. of Chicago, BNL - Dept. of Applied Science, BNL - Medical Dept. Local Contact: Nancy Lazarz (516)282-3519, 5717 @ BNL e-mail: [email protected] [email protected] Spokesperson: Dean Chapman (516)282-4744 @ BNL Research Program: Materials sciences at energies beyond 50 keV - chemical crystallog- raphy, high pressure physics, X-ray scattering, X-ray fluorescence microprobe, tomography

Expected Values Total Horizontal Energy Flux Angular Range Crystal Resolution (photons/sec/mrad/ Acceptance (keV) Source Type (AE/E) 1% bw/0.25A) (mradians) 10- 100 Superconducting Si: low index 2x 10"4 5 x 1014 0 - 3.75 Wiggler reflections @ 20 keV - variable 3.0 < B < 4.7T (250 mA, 2.5 GeV) - unfocused - source output 17.4 cm period after filters White Beam White Beam White Beam White Beam 0 - 3.75

Optical Configuration a) Monochromator Double crystal monochromator; located 20 meters from the wiggler source; tunable from -20 to 90 keV using Si(220) Laue crystals. b) Filters The beamline contains 0.4 mm of graphite filters and a total of 2 mm of Be windows. c) Apertures Beamline apertures control the vertical and horizontal source size available in the experimental hutch at 27.5 - 30 meters; apertures are located 18 meters from the source. Experimental Apparatus Radiation hutch; six circle Huber diffractometer with kinematic mount; sample located 27.5 - 30 meters from the wiggler source; hutch can accomodate a wide range of additional experimental hardware. Computer System Hardware and Software VAXstation 3100, VAX/VMS operating system; SCSI CAMAC crate controller with CAMAC crate, stepper motor control via CAMAC; microstepper drives; full-step/half-step drives; 600 MB Winchester drive; 2 GB DAT tape; Ethernet link.

March 12, 1993

-X17B1- Beamline: X17B2 Ring: X-Ray Operational Status: Operational

Insertion Device Team: NSLS, Australian Nuclear Science and Technology Organization, BNL - Medical Department, European Synchrotron Radiation Facil- ity, Lawrence Berkeley Laboratory, North Shore University Hospital, Palo Alto Veterans Administration Hospital, Stanford Synchrotron Radiation Laboratory, Stanford University, University of Tennessee Local Contact: Nicholas Gmiir (516)282-2490, 5617 @ BNL e-mail: thomlins@bnl [email protected] Spokesperson: William Thomlinson (516)282-3937 @ BNL Research Program: Medical research - angiography, computed tomography, radiotherapy

Total Horizon Ul Energy Angular Range Crystal Resolution Flux Acceptance (keV) Source Type (AE/E) (photons/sec/mrad) (mradians) 33.02 Superconducting Si(lll) 4 x 10'3 2.6 x 1012 variable from and Wiggler Bent Laue @ 33 keV, B = 4.0T 0-3.6 33.32 3.0 < B < 4.7T Monochromator (250 mA, 2.5 GeV) (Fixed - output after C - horizontal Energies) 17.4 cm period and Be filters is unfocused

Optical Configuration a) Monochromator Fixed dual energy bent Laue monochromator, energies set to bracket the iodine K-edge at 33.169 keV; located 34 meters from the wiggler source. b) Filters Front end contains 0.391 mm of graphite filters and 0.508 mm of beryllium windows. c) Apertures Beamlinc apertures control the vertical and horizontal source size available to (he monochromator crystals at 32 meters. Experimental Apparatus Clinical facility (1500 sq. ft.) positioned downstream of and operating alternately with X17B1 (patient position for angiography experiments located 37 meters from wiggler source). Equipment available lo General Users: no General User human research may be carried out; relevant instru- mentation and/or medically related programs may be done under collaborative arrangements with the IDT members. Silicon detector with 0.25 mm horizontal spatial resolution for dual energy imaging; dual beam fixed energy (33 keV) Laue monochromator. Computer System Hardware and Software Gateway 2000 486/33C PC with NEC MultiSync 2A monitor; DEC DS3100 color workstation with approximately 1 gigabyte disk storage, DAT drive, TK50 tape drive; DEC VT23O terminal; Epson FX-850 printer; DcAnza ID2000 image display; Mitsubishi Video Copy Processor, system linked to site-wide Ethernet system.

December 23, 1992

-X17B2- Beamline: X17C Ring: X-Ray Operational Status: Operational

Insertion Device Team: Naval Research Laboratory, Carnegie Institution of Washington, Los Alamos National Laboratory, Lawrence Livermore National Labora- tory, Bell Laboratories, Cornell U., State U. of New York at Stony Brook, U. of California at Berkeley, U. of Chicago, U. of Hawaii, U. of Washington Local Contact: Jing Zhu Hu (516)282-5917 @ BNL Spokesperson: Earl Skelton (202)767-3014 @ Naval Research Laboratory David Mao (202)686-2467 @ Carnegie Institute of Washington e-mail: [email protected] Research Program: High pressure research; energy dispersive diffraction from micros- copic sample volumes, ca. 10" m

Total Horizontal Energy Flux Angular Range Crystal Resolution (photons/sec/mrad/ Acceptance (keV) Source Type (AE/E) 1% bw) (mradians) ** White Beam Superconducting White Beam White Beam White Beam 0-2 10- 100 Wiggler - variable 3.0 < B < 4.7T - unfocused

17.4 cm period - source output after filters

Low and high energy cutoffs typically set at 12 - 80 keV; diamond windows of pressure cells impose a 12 - 15 keV low energy cutoff. ** Beam usually collimated to a 50 x 50 jxm square cross-section to avoid interference with gasket. OpticalConfiguration a) White Beam Entrance port is located approximately 25 meters from the wiggler source. b) Filters Front end contains 0.391 mm of graphite filters and 0.508 mm of beryllium windows. Experimental Apparatus Radiation hutch; computer controlled positioners,sample/cell and detector tables located - 26 meters from the wiggler source; solid stale detectors and associated electronics. Computer System Hardware and Software MicroVax-II; software being developed for single crystal operations.

January 15, 1993

-X17C- Beamline: X18A Ring: X-Ray Operational Status: Operational

Participating Institutions: MATRIX - a consortium of midwestern universities - Purdue U., Northwestern U., U. of Illinois, U. of Missouri Local Contact: Steven Ehrlich (516)282-5618, 7862 @ BNL e-mail: [email protected] Spokesperson: Jerry Liedl (317)494-4100 @ Purdue University Research Program: Diffuse and surface scattering

Total Horizontal Energy Spot Size Angular Range Crystal Resolution Flux - focused Acceptance (keV) Type (AE/E) (photons/sec) (mm) (mradians) 4-20 Si(lll) 5x 10"4 ~iolo-ion 1.0H x 1.0V 0-6 (without mirror) @ 10 keV 4 - 12 (50 mA, 2.5 GeV) (with mirror)

Optical Configuration a) Monochromator Double flat crystal monochromator; first crystal is water-cooled; typical crystal movement from 6° to 29° Bragg angle; located 10 meters from the source. b) Mirror Cylindrical platinum coated aluminum 1:1 focusing mirror and mirror bender; high energy cutoff is -12 keV; located 11 .neters from the source. Experimental Apparatus Radiation hutch; four circle Huber diffractometer with crystal analyzer; scintillation detectors; ionization chambers; Si(Li) detector available for general use only through specific discussions with the PRT members. Computer System Hardware and Software 386 based personal computer; MS DOS 5.0 operating system; 72 MB hard disk; 1.44 MB, 3.5" floppy drive; 60 MB internal tape storage; data acquisition and analysis software.

December 22, 1992

-X18A- Beamline: X18B Ring: X-Ray Operational Status: Operational

Participating Institutions: AlliedSignal Research and Technology, Argonne National Laboratory - Advanced Photon Source and Materials Science, Chevron, UOP Local Contact: Syed Khalid (516)282-3800 @ BNL Spokesperson: Heinz Robota (708)391-3129 @ AlliedSignal e-mail: [email protected] Research Program: EXAFS, optics characterization, reflectivity measurements

Total Maximum Horizontal Energy Flux Spot Size Angular Range Crystal Resolution @ 100 mA, 2.5 GeV - unfocused Acceptance (keV) Type (AE/E) (photons/sec.) (mm) (mradians) 4- 16 Si(lll) 1.0 x 1010 25.0H x 2.0V 1.0 @8keV 6-26 Si(220) 1.0 x 109 25.0H x 2.0V 1.0 @8keV

Optical Configuration Monochromator Double flat crystal monochromator in He atmosphere with fixed entry and exit; crystal dimensions are 5 cm x 5 cm x 1 cm thick; crystals are interchangeable; typical crystal movement from 7° to 68° Bragg angle; located 20 meters from the source. Experimental Apparatus Radiation hutch with exhaust system for toxic emissions; ion chambers; fluorescence detectors; multi-channel analyzer; x-y stage sample positioner. Computer System Hardware and Software 386-20MHz PC for data acquisition; 386-25 MHz PC for data analysis; CAMAC interface; graph- ics compatible printer; data acquisition and EXAFS analysis software package.

April 7,1993

-X18B- Beamline: X19A Ring: X-Ray Operational Status: Operational

Participating Institutions: NSLS, U. of California at Davis, U. of Kentucky, U. of Michigan, BNL - Department of Applied Science (members of the X19A Ste- wardship Group) Local Contact: Fu-Long Lu (516)282-5619, 2338 @ BNL Spokesperson: Lars Furenlid (516)282-5699 @ BNL e-rnail: [email protected] Research Program: X-ray absorption spectroscopy, EXAFS

Total Resolution Horizontal Energy AE(eV) Angular Range Crystal @8keV, Si(lll) Flux Spot Size Acceptance (keV) Type @12keV, Si(220) (photons/sec) (mm) (mradians) 2.1 - 8.0 Si(lll) 8.1 -0.7* -1011 40H x 5V 2.4(unfoc.) 3.4 - 12.9 Si(220) 12 - 0.8 @5keV unfocused 1.3(foc.) (100 mA, 2.5 GeV) -1 mm diam focused 7.7 - 13.4 Si(lll) 8.1 - 0.7 ~5xl0U 40Hx5V 2.4(unfoc.) 12.5 - 23.0 Si(220) 12 - 0.8 @ 11 keV unfocused 1.3(foc.) (100 mA, 2.5GeV) -1 mm diam focused * Largest value corresponds to 2 mm slit. Small value is for 0.1 mm slit. Optical Configuration a) Monochromator NSLS boomerang-type double flat crystal monochromator; fixed exit geometry; first crystal is water-cooled; operates at UHV; two presettable Bragg angle ranges of 14.4° - 70° and 8.5° - 15°; located 9.3 meters from the source. Operates primarily in low energy, Si(lll), unfocused configuration. b) Mirrors Cylindrical aluminum focusing mirror, electroless nickel plated and overcoated with rhodium, for focusing beam onto sample at 18.5 meters from the source; 3 mradian incidence angle; 23 keV high energy cutoff; mirror may be dropped out of beam path for unfocused mode; located 10.5 meters from the source. Front end collimating mirror to be installed April 1993. c) Windows Beamline is UHV and windowless up to a 10 mil Be window loailsd inside the radiation hutch. Experimental Apparatus Positioning table using stepper motor controls providing two perpendicular translations, Lytle detector and filters. Germanium array detector available by special arrangement with L. Furen- lid. Computer System Hardware and Software MicroVAX II computer with CAMAC interface running Micro-VMS operating system; Ethernet link to CCD cluster and major networks, EXAPLOT and/or UW EXAFS software for on-line data analysis.

December 18, 1992

X19A- Beatnline: X19C Ring: X-Ray Operational Status: Operational

Participating Institutions: NSLS, Synchrotron Topography Project - SUNY @ Stony Brook, Johns Hopkins U., U. of Illinois at Urbana, U. of Pennsylvania, US Army Research Lab., Adelphi (formerly Harry Diamond Laboratory), U. of Chicago Local Contact: Michael Dudley (516)282-5719 @ BNL Spokesperson: Michael Dudley (516)632-8500 @ SUNY at Stony Brook e-mail: [email protected] [email protected] Research Program: Topography, liquid surface scattering

Total Horizontal Energy Beam Size Angular Range Crystal R solution Flux (photons/sec/ Available Acceptance (keV) Type (AE/E) mrad/0.1% bw) (mm) (mradians) 4-25 While Beam White Beam 4.16 x 1012 (meas.) 40.0H x 7.0V 2 @ 4.9 keV (100 mA, 2.5. GeV) 4-20 Si(lll) io-3 40.0H x 7.0V 2 6- 15 Si(lll) 0.01 Unmeasured 0.5H x 0.5V 2 to be installed

Optical Configuration a) White Beam Mode Slit-defined white radiation; capability of introducing various absorbers into beam path to modify spectral distribution. b) Monochxomator Mode Constant offset double flat crystal (Golovchenko type) monochromator; first crystal is water- cooled; operates in the atmosphere; operates in tandem with multiple crystal topography camera downstream of monochromator; easily positioned in and out of beam path; located inside radia- tion hutch 21 meters from the source. c) Focused and Monochromated Cylindrically cut, rhodium coated, aluminum mirror mounted on a bender provides horizontal and vertical focusing. Si(lll) - or possibly other monochromalors - to be installed in the hutch will provide an -1% bandpass. Experimental Apparatus Radiation hutch; five circle Huber goniometer with computer controlled robotic detector arm for positioning X-ray detectors; environmental chamber with beryllium exit and entrance windows, chamber mounts in eulerian cradle of white beam camera, remote manipulators, furnace, deforma- tion stage; scintillation detectors; real-time X-ray television system; dark-room for development of X-ray films. Surface spectrometer will be installed during 1993. Computer System Hardware and Software Sun SPARCstation 2 running the Sun UNIX OS using SPEC for motor software.

February 24, 1993

-X19C- Beamline: X20A Ring: X-Ray Operational Status: Operational

Participating Institutions: IBM, Massachusetts Institute of Technology Local Contact: Jean Jordan-Swot (516)282-5720 @ BNL e-mail: [email protected] Spokesperson: G. Brian Stephenson (914)945-3008 @ IBM TJ. Watson Research Center Research Program: Scattering (high Q resolution)

Total Horizontal Energy Flux Spot Size Angular Range Crystal Resolution @ 100 mA; 2.5 GeV FWHM Acceptance (keV) Type (AE/E) (photons/sec) (mm) (mradians) 6.3 - 12 Ge(lll) 2.4 x 10'3 3.3 x 1011 1H x 1.5V 2 asymm. (meas. Ni @8keV edge width) (meas.)

6.3 - 12 Si(lll) 3.6 x 10'3 3xlOU 1H x 1.5V 4 (meas. Ni @ 9.5 keV edge width) (meas.)

Optical Configuration a) Mirror Platinum coated silicon, adjustably bent cylinder mirror with 1:1 focusing; mirror length is 600 mm; radius is 8 cm; 0 = 6.25 mradians (0.36°); mirror located 12.8 meters from the source. b) Monochromator Scanning double-cryslal fixed-exit-beam monochromator; first crystal is water cooled; PZT servo with optional closed-loop feedback on second crystal; Bragg angle ranges from 8° to 36.6° 29; located 16 meters from the source. Experimental Apparatus Radiation hutch with 11 '6" ceiling and overhead hoist; six circle Huber diffractometer (vertical diffraction plane); ion chambers and scintillation detectors; computer controlled table for Huber. Computer System Hardware and Software IBM PS/2; AIX 1.3 operating system; CAMAC and GPIB interfaces; "C-Plot" on-line graphics and "SPEC" software for six circle operation; data can be downloaded onto DOS formatted diskettes.

January 27, 1993

-X20A- Beamline: X20B Ring: X-Ray Operational Status: Operational

Participating Institutions: IBM, Massachusetts Institute of Technology Local Contact: Jean Jordan-Sweet (516)282-5720 @ BNL e-mail: [email protected] Spokesperson: G. Brian Stephenson (914)945-3008 @ IBM TJ. Watson Research Center Research Program: Scattering at fixed energy

Total Horizontal Energy Flux Spot Size Angular Range Crystal Resolution @ 100 mA, 2.5 GeV FWHM Acceptance (keV) Type (AE/E) (photons/sec) (mm) (mradians) 17.36 Si(lll) 1.8 x 10'3 1 x 1011 0.63H x 6V 1.5 (fixed) bent

Optical Configuration Monochromator Horizontally bent silicon crystal monochromator located 19.6 meters from the source and 13.4 meters from the sample. Experimental Apparatus Radiation hutch with 12' ceiling and overhead hoist; ion chambers and scintillation detectors. Diffractometer and table must be borrowed (arrange with beamline personnel). Computer System Hardware and Software IBM PS/2; AIX 1.3 operating system; CAMAC and GPIB interfaces; "C-Plot" on-line graphics and "SPEC" software for six circle operation; data can be downloaded onto DOS formated diskettes.

January 27,1993

-X20B- Beamline: X20C Ring: X-Ray Operational Status: Operational

Participating Institutions: IBM, Massachusetts Institute of Technology Local Contact: Jean Jordan-Sweet (516)282-5720 @ BNL e-mail: [email protected] Spokesperson: G. Brian Stephenson (914)945-3008 @ IBM TJ. Watson Research Center Research Program: Scattering (high and low Q resolution)

Total Horizontal Energy Flux (meas.) Spot Size Angular Range Crystal Resolution @ 100 mA, 2.5 GeV FWHM Acceptance (keV) Type (AE/E) (photons/sec) (mm) (mradians) 4- 11 Si(lll) 3.6 x 10'3 2 x lq11 @ 8 keV 1H x 1.5V 4 (meas. Ni 3 x 101' @ 9.5 keV edge width) 5x 1010@ llkeV

2.5 x 10'3 2 x lq11 @ 8 keV 1H x 1.5V 2 (meas. Ni 2 x 1011 @ 9.5 keV edge width) 3x 1010@ 11 keV 4 - 10.5 23 A d-spacing 8 x 10J:? @ 6 keV 1H x 1.5V 2 multilayer 1 x 1013 @ 8 keV

Optical Configuration a) Mirror Platinum coated silicon, adjustably bent cylinder mirror with 1:1 focusing; mirror length is 600 mm; radius is 8 cm; G = 7.4 mradians (0.42°); mirror located 10.8 meters from the source. b) Monochromator Scanning double-crystal fixed-exit-beam monochromator; first crystal is water cooled; PZT servo with optional c'osed-loop feedback on second crystal; Bragg angle ranges from 4° to 54° 20; located 14 meters from the source. Experimental Apparatus Radiation hutch with 11 '6" ceiling and overhead hoist; six circle Huber diffractometer (vertical diffraction plane); ion chambers and scintillation detectors; computer controlled table for Huber. Computer System Hardware and Software IBM PS/2; AIX 1.3 operating system; CAMAC and GPIB interfaces; "C-Plot" on-line graphics and "SPEC" software for six circle operation; data can be downloaded onto DOS formatted diskettes.

February 10, 1993

-X20C- Beamline: X21 Ring: X-Ray Operational Status: Commissioning Operational by June '93

Insertion Device Team: NSLS, AT&T Bell Labs, BNL - Physics DepL, ESRF, Exxon Local Contact: Chi-Chang Kao (516)282-4494, 5721 @ BNL e-mail: [email protected] Spokesperson: Chi-Chang Kao Research Program: High energy resolution inelastic scattering

Expected Values Total Horizontal Energy Angular Range Crystal Resolution Flux Acceptance (keV) Source Type (AE/E) (photons/sec) (mradians) E>4 Hybrid wiggler Special -10"6 up to 3 same as - 15 periods purpose bending - 12 cm period backscattering magnet crystals

Optical Configuration This beamline has two experimental hutches. The upstream hutch is intended for high energy resolution (AE/E -10" ) experiments. The downstream hutch is intended for lower energy resolu- tion measurements. Experimental Apparatus Radiation hutch; Franke and Heydrich four circle spectrometer. Computer System Hardware and Software IBM 80486 computer; interactive UNIX operating system; "ACE" software.

January 25,1993

-X21- Beamline: X22A Ring: X-Ray Operational Status: Construction Ops. expected mid-1994

Participating Institutions: BNL - Physics Department, BNL - Department of Applied Sciences Local Contact: Doon Gibbs (516)282-5622,4608 @ BNL Spokesperson: Doon Gibbs e-mail: [email protected] Research Program: In-plane diffraction and reflectivity studies of surfaces under electro- chemical conditions, also of thin films and multilayers

Total Horizontal Energy Spot Size Angular Range Crystal Resolution Flux - focused Acceptance (keV) Type * (AE/E) (photons/sec) (mm) (mradians) 10 Ge(lll) Unfocused 3-6 (nominal) at first

Optical Configuration a) Mirror Flat Pt-coated mirror focusing in the vertical - to be installed in second phase of beamline development. b) Monochromator Sagitally focusing Ge(l 11) crystal monochromator scattering in the horizontal; fixed energy; adju- stable horizontal and vertical slits before monochromator; monochromator vacuum isolated from beamline by Be window. Experimental Apparatus Four circle Huber spectrometer with vertical scattering geometry, located -14 meters from the source; eulerian cradle; crystal analyzer with Ge(l 11) crystal; photomultiplier detector; ultra-pure water source and special provisions for handling and preparation of surfaces in an electrochemical cell. Computer System Hardware and Software Gateway 486/50 running interactive UNIX SVR3.2 operating system; IEEE-488 interfaces for data acquisition; SPEC software.

January 15, 1993

-X22A- Beamline: X22B Ring: X-Ray Operational Status: Operational

Participating Institutions: BNL - Physics Department, Harvard U. - Division of Applied Sci- ences Local Contact: Benjamin Ocko (516)282^299, 5622 @ BNL Spokesperson: Doon Gibbs (516)282-5622,4608 @ BNL e-mail: [email protected] Research Program: High resolution X-ray diffraction

Total Horizontal Energy Spot Size Angular Range Crystal Resolution Flux - focused Acceptance (keV) Type (AE/E) (photons/sec) (mm) (mradians) 5- 10 Ge(lll) >2 x 10'3 0.5 xlO11 lHx IV 1 @8keV (100 mA, 2.5 GeV)

Optical Configuration a) Mirror Bent cylindrical nickel coated aluminum focusing mirror for 2:1 focusing in the vertical and hor- izontal at the sample position; the exit angle from the mirror is fixed at 10 mradians. b) Monochromator Single flat crystal monochromator; 2© between 22° and 45°; adjustable horizontal and vertical slits before monochromator; monochromator vacuum isolated from beamline by beryllium win- dows; located 18 meters from the source. Experimental Apparatus Four circle Huber spectrometer with horizontal scattering geometry, located 20 meters from the source; eulerian cradle; crystal analyzer with Ge(lll) crystals; photomultiplier detector. Liquid surface spectrometer available only by special arrangement with BNL Physics and Harvard University. Computer System Hardware and Software Gateway ^86/50 running interactive UNIX SVR3.2 operating system; CAMAC and IEEE-488 interfaces for data acquisition; SPEC software.

January 8, 1993

-X22B- Beamline: X22C Ring: X-Ray Operational Status: Operational

Participating Institutions: BNL - Physics Department Local Contact: Doon Gibbs (516)282-5622, 4608 @ BNL Spokesperson: Doon Gibbs e-mail: [email protected] Research Program: Diffraction studies of magnetic and structural phase transformations, surface scattering

Total Horizontal Energy Spot Size Angular Range Crystal Resolution Flux - focused Acceptance (keV) Type (AE/E) (photons/sec) (mm) (mradians) 3- 12 Oe(lll) 5x10^ 1 x 1011

Optical Configuration a) Mirror Bent cylindrical nickel coated aluminum focusing mirror for 1:1 focusing at sample; mirror is in vacuum and separated from the ring by a beryllium window; located 10 meters from the source. b) Monochromator Double monochromator, 7° < 20>, < 70° in vertical plane; in vacuum and isolated from mirror tank by a beryllium window; located 15 meters from the source. - adjustable vertical and horizontal slits are located upstream of hutch. Experimental Apparatus Radiation hutch; Franke and Heydrich four circle spectrometer with vertical scattering geometry; 28g from -20° to +120°; x from -18 to +18; Ge(.lll) crystal analyzer; photomultiplier detector; UHV surface scattering chamber; polarization analyzer. Surface apparatus, polarization analyzer and detectors are available only by special arrangement with BNL Physics. Computer System Hardware and Software Gateway 486/50 running interactive UNIX SVR3.2 operating system; CAMAC and IEEE-488 interfaces for data acquisition; SPEC software.

January 8, 1993

-X22C- Beamline: X23A2 Ring: X-Ray Operational Status: Operational

Participating Institutions: Nauonal Institute of Standards and Technology Local Contact: Joseph Woicik (516)282-5823, 5236 @ BNL e-mail: NA Spokesperson: Joseph Woicik Research Program: EXAFS

Total Horizontal Energy Spot Size Angular Range Crystal Resolution Flux - focused Acceptance (keV) Type (AE/E) (photons/sec) (mm) (mradians) 5.4 - 30 Si(311) 2x 10"4 1010 25H x 1.0V 4 - at monochromator bandpass @ 10 keV (100 mA, 2.5 GeV)

Optical Configuration Monochromator Upwards reflecting, fixed exit Golovchenko-Cowan design; piezo-feedback stabilized. Experimental Apparatus Radiation hutch; ion chambers for beam intensity monitor, transmitted intensity and harmonic monitor; sample translation stage with 2 inch vertical and horizontal travel, supports 10 kg; adju- stable horizontal and vertical exit slits . As this is a side station, experimental apparatus must be designed consistent with a pass-through pipe 2 inches below and 1 inch to the side of the A2 beam edge. Computer System Hardware and Software Macintosh Hci and Macintosh SE30; EDC software.

March 12, 1993

-X23A2- Beamline: X23A3 Ring: X-Ray Operational Status: Operational

Participating Institutions: National Institute of Standards and Technology Local Contact: Daniel Fischer (516)282-5623, 5177 @ BNL Spokesperson: Gabrielle Long (301)975-5975 @ NIST e-mail: [email protected] Research Program: Topography, small-angle scattering

Total Horizontal Energy Resolution Flux2 Spot Size Angular Range Crystal @ 8keV @ 8 keV, 100 mA - unfocused Acceptance (keV) Type1 (AE/E) (photons/sec) (mm) (mradians) asymm. Si(lll) 3 11 5- 14 ctj = -a2 = 7.8 1 x 10' 4x 10 4V x 38H 2 5- 14 a, = o^ = 7.8 4 x 10'4 2x 1011 19V x 38H 2

5 - 30 symm. Si(220) 6x 10"4 2x 1011 4V x 38H 2

asymm. Ge(l 11) 5- 11 cij = 8.0; o^ = 0 1 x 10"3 1 x 1012 14V x 38H 2

While Beam White Beam White Beam White Beam 4V x 38H 2

Sign of ctj, asymmetric cut angle of i crystal, is + (-) for vertical magnification (dcmagnification) of beam. Other a are available for Si. 2 Flux is given in terms of photons/second in the Spot Size given in the next column.

Optical Configuration Monochromator Tunable, vertically diffracting, double flat crystal; fixed height exit beam 25 cm above white beam; crystals rotate azimuthally to change between magnifying and demagnifying modes; 1st crystal 17 meters from source. Experimental Apparatus Radiation hutch; darkroom; general purpose sample (detector) stage translates along 2 (3) axes with 2.5 u.m step size and rotates about 2 (1) axes with 1 arcsec step size; double crystal SAXS diffractometer and photodiode detector; x-ray vidicon camera. Computer System Hardware and Software LSI 11/23 computer; RT11 operating system, Winchester and RX02 disk drives, and CAMAC for data acquisition; Macintosh SE/30 for data analysis.

January 25, 1993

-X23A3- Beamline: X23B Ring: X-Ray Operational Status: Operational

Participating Institutions: Naval Research Laboratory Local Contact: John Kirkland (516)282-5723, 2258 @ BNL Spokesperson: W.T. Elam (202)767-3014 @ Naval Research Laboratory e-mail: [email protected] Research Program: EXAFS, crystallography, scattering

Total Horizontal Energy Angular Range Crystal Resolution Flux Spot Size Acceptance (keV) Type (AE/E) (photons/sec/mA) (mm) (mradians) 3- 11 Si(lll) 4x 10"4 2.3 x 109 1.0H x 3.0V 6 @ 6.5 keV @ 6 keV, 2.5 GeV (measured) (measured) (measured)

Optical Configuration a) Mirror No. 1 Platinum coated flat copper collimating mirror; 400 mm long by 70 mm wide; collimation achieved by four point bending; high energy cutoff is 11 keV; angle of incidence is 7.15 mradi- ans; located 7.9 meters fom the source. b) Monochromator Fixed exit position double crystal monochromator (Cowan type); two ranges of incident angle are 8° - 15° and 13.5° - 70°; located 9.2 meters from the source. c) Mirror No. 2 Platinum coated quartz toroidal mirror; 580 mm long by 70 mm wide and sagittal radius of 84 mm; vertical focusing achieved by four point bending; focal point at 23.5 meters from the source; angle of incidence is 7.15 mradians; high energy cutoff is 11 keV; located 11.75 meters from the source. Experimental Apparatus Radiation hutch; detectors for transmission, fluorescence and electron EXAFS; four circle Huber diffractometer with crystal analyzer. Computer System Hardware and Software PDP 11/73 computer; RSX-11M+ operating system; EDC (EXAFS Data Collection) package; Tektronix 4014 compatible graphics terminals; PLOT 10 plotting package; HP plotter, IBM PC/AT computer; MicroVAXII computer running VMS operating system; UW EXAFS analysis package. Reference Neiser, R.A., J.P. Kirkland, W.T. Elam and S. Sampath. 1988. Optical Performance of the Naval Research Laboratory's Materials Analysis Beam Line at the NSLS. Nucl. Instr. and Meth. in Physics Res. A266: 220-225.

January 21, 1993

-X23B- Beamline: X24A Ring: X-Ray Operational Status: Operational

Participating Institutions: Natlona' Institute of Standards and Technology - Quantum Metrology Division; Argonne National Laboratory - Physics Division Local Contact: Barry Karlin (516)282-5624, 7863 @ BNL Steven Southworth (301)975-4850 @ NIST e-mail: [email protected] [email protected] Spokesperson: Paul Cowan (708)252-4055 @ ANL Richard Deslattes (301)975-4841 @ NIST e-mail: [email protected] [email protected] Research Program: Atomic, molecular and optical physics with X-rays

Total Horizontal Energy Resolving Flux Spot Size Angular Range Crystal Power (photons/sec - focused Acceptance (keV) Type (E/AE) @ 100 mA, 2.5 GeV) (mm) (mradians) 2.1 - 5.0 Si(Jll) 4000-8000 -1012 ~1 mm diam. 9.5 2.0 - 5.0 Ge(Ul) 3800 - 4500 -1012 1 mm diam. 9.5 1.8 - 3.6 InSb(lll) 2500 - 3600 1012 -1 mm diam. -7 mrad Optical Configuration a) Mirror No. 1 Nickel-coated aluminum spherical collimating mirror; 300 mm long by 80 mm wide, radius is 1000 meters; variable incidence angle (0 - 25 mradians); removable from beam path; located 6.8 meters from the source. b) Monochromator UHV, constant-offset double-flat-crystal monochromator (boomerang-linkage type); feedback- stabilized; 15° - 66° Bragg-angle range; located 7.7 meters from the source. c) Mirror No. 2 Nickel-coated quartz toroidal focusing mirror, 580 mm long by 88 mm wide, sagittal radius is 100 mm, meridional radius is 800 meters; incident angle is 10.65 mradians; high-energy cutoff is 5 keV; 1:1 focusing at 18.4 meters from the source; located 9.2 meters from the source. Experimental Apparatus Entire beamline is UHV-compatible. UHV chamber and atmospheric gas-sample cells are avail- able with appropriate restrictions to General Users. A high-energy-resolution secondary X-ray spectrometer may be made available by special arrangement with the PRT. General Users may also bring their own chamber - details must be discussed with the PRT. Computer System Hardware and Software PDP 11/73 computer with VT240 graphics terminal and 30 MB fixed hard disk and RX02 eight- inch floppy drive; RT-11 operating system; CAMAC interface; special-purpose software for data acquisition and beamline-motion control; PDP 11/23 computer for vacuum-monitoring control; VAXstation 2000 running VMS operating system for on-line data analysis; Ethernet connections for data transfer to remote sites via DECnet or Internet. PC and Mac computers also available for off-line computation.

April 5, 1993

-X24A- Beam Line: X24C Ring: X-Ray Operational Status: Operational

Participating Institutions: Naval Research Laboratory Local Contact: Jack Rife (516)282-5724 @ BNL (202)767-4654; Naval Research Laboratory e-mail: [email protected] Spokesperson: Milton Kabler (202)767-2223 @ Naval Research Laboratory Research Program: Photoemission and reflectance spectroscopy

Grating or Flux Spot Size Total Energy Crystal (photons/sec @ On Sample Angular Range Type Resolution 0.2% AE/E) - focused Acceptance (eV) (grooves/mm) (AE/E) (!00 mA, 2.5 GeV) (mm) (mradians) 2-600 1 -600 0.2% 109-1012 2.0H x 1.2V 6Hx IV 120 - 900 1 or 2 - 2400 0.2 or 0.08% 108-1010 2.0Hx 1.2V 6Hx IV 500 - 1500 Multilayer test 0.2% 107 2.0H x 1.2V 2H x 0.3V grating

Optical Configuration a) Mirror No. 1 Platinum coated, fixed curvature paraboloidal mirror (Ml); beam collimated into monochromator; 2° grazing angle; full orientation control; located 10 meters from the source. b) Monochromator Grating/crystal monochromator; double crystal type scanning motion; uses either gratings or cry- stals in vacuum with exchange; 3.5° to 85.0° grazing angle range; 600 grooves/mm grating has a 2° blaze and is silicon coated; 2400 grooves/mm grating has a 2° blaze and is gold coated; mul- tilayer test grating is 4° blaze, 2000 grooves/mm, coated with 8.0 nm 2D W/C multilayer and is 1" square, forthcoming full size replacement expected to increase flux and resolving power; located 13.5 meters from the source. c) Mirror No. 2 Platinum coated, fixed curvature paraboloidal mirror (M2) identical to Ml; beam focused onto fixed exit slit 26 meters from the source yielding 1:1 image of source; 2° grazing angle; full orientation control; located 16 meters from the source. Experimental Apparatus Two interchangable 18" diameter UHV bell jars; reflectometer with sample adjustable in angle of incidence and orientation around sample normal; detector mount capable of being set at a fixed distance but any angle about sample; whole chamber can be rotated to alter polarization; surface science chamber with double pass cylindrical mirror analyzer; both chambers to be served by UHV sample preparation chamber. No corrosive or non-UHV compatible materials allowed. Computer System Hardware and Software COMPAQ 386/20; 10 MB memory; EGA/VGA monitor and high speed monitor hardcopy; 130 MB hard disk; 1.2 MB floppy disk; 260 MB WORM drive; EPSON F86 printer; data acquisition through CAM AC modules/GPIB.

February 1, 1993

-X24C- Beamline: X25 Ring: X-Ray Operational Status: Operational

Insertion Device Team: NSLS, ANL - Advanced Photon Source, AT&T Bell Labs, BNL Biology Department, BNL - Physics Department, Harvard U., IBM Local Contact: Lonny Berman (516)282-5625, 5333 @ BNL e-mail: berman@bnl Spokesperson: Lonny Berman Research Program: High Q-resolution elastic scattering

Total Energy Angular Range Crystal Resolution Flux Acceptance (keV) Source Type (AQ/Q) (photons/sec) (mradians) >4 Hybrid wiggler Silicon: -lO^-lO'3 3xlO12 1.5 mradH x (same as - 27 poles (111) or (220) (variable: @8keV 0.15 mradV bending - 12 cm period depends on (200 mA, 2.5 GeV) subtended magnet) - 1.1 T field aperture - meas. using mirror by mirror used) and adaptive E =4.6 keV Si(l 11) crystals @ 2.5 GeV

Optical Configuration a) Condensing Mirror Platinum coated silicon mirror; cutoff energy = 28 keV at 3 mrad incident angle; -1:1 double focusing; located 14 meters from the wiggler source; available for monochromatic and white beam modes; provides focal spot size of 0.8 mm horizonial (FWHM) x 0.4 mm vertical (FWHM). b) Monochromator Two crystal non-dispersive monochromator, usable with or without mirror, Bragg angle range = 3° -> 45°; located 18 meters from wiggler source; first crystal is mounted in an adaptive meri- dional bender. Experimental Apparatus White radiation hutch; six circle Huber diffraclometer on a kinematic table; room for multiple experiments. Computer System Hardware and Software Dynex 486 PC workstation running under UNIX/X-Windows, with "SPEC" and NSLS "ACE" data-collection software and "CPLOT" data-analysis software.

December 18, 1992

-X25- Beam Line: X26A Ring: X-Ray Operational Status: Operational

Participating Institutions: BNL(DAS) - Atomic and Applied Physics Group; U. of Chicago - DepL of Geophysical Sciences Local Contact: Keith Jones (516)282-5626, 4588 @ BNL e-mail: [email protected] Spokesperson: Keith Jones Research Program: Development and application of analytical techniques (e.g. microprobe) in chemistry, geochemistry, biology, medicine and other fields

Total Horizontal Angular Energy Range (keV) Beam Line Spot Size Acceptance (mradians) 4-20 Focused/Unfocused 10 Jim to -0.5 Microprobe 25 mmH x 1.6 mmV

Optical Configuration a) Monochromator Dual channel cut monochromator with fixed exit geometry; located 6 meters from the source. b) Mirror 2:1 ellipsoidal aluminum focusing mirror coated with platinum, focal point at sample 9 meters from source; high energy cutoff is 18 keV; located 8 meters from the source. Experimental Apparatus Radiation hutch; energy and wavelength dispersive spectrometers; xyz © sample position stages; remote microscopy. Computer System Hardware and Software Canberra Genie 9900 pulse height analysis system; VAXstation 4000 Model 90 using VAX/VMS operating system; Ethernet link to BNL/AMD VAX cluster; hardcopy; data acquisition and analysis software.

March 18,1993

-X26A- Beam Line: X26C Ring: X-Ray Operational Status: Operational

Participating Institutions: BNL(DAS) - Atomic and Applied Physics Group; Argonne National Laboratory - Division of Biological and Medical Research; U. of Chicago - Dept of Biochemistry and Molecular Biology Local Contact: Keith Jones (516)282-5726, 4588 @ BNL e-mail: [email protected] Spokesperson: Keith Jones Research Program: Development and application of x-ray microscopy techniques in chemistry, geochemistry, biology, medicine and other fields; Laue diffraction protein crystallography

Total Horizontal Angular Energy Range (keV) Beam Line Spot Size Acceptance (mradians) White Beam White Beam Determined by 4 user aperture 9 4- 15 Focused ~1 mm 4

Optical Configuration A 1:1 cylindrical focusing mirror; focused or unfocused beams can be used; located 10 meters from the source. Experimental Apparatus Radiation hutch; Si(Li) detectors; xyz 6 sample position slages; Laue diffraction equipment. Computer System Hardware and Software Canberra Genie 9900 pulse height analysis system; VAXstation 3200 using VAX/VMS operating system; Ethernet link to BNL/AMD VAX cluster; hardcopy; data acquisition and analysis software.

March 18, 1993

-X26C-