Brookhaven Highlights

Total Page:16

File Type:pdf, Size:1020Kb

Brookhaven Highlights BNL—52110 DB88 012365 BROOKHAVEN HIGHLIGHTS MASTER Brookhaven National Laboratory Upton, Long Island, New York 11973 Brookhaven National Laboratory is operated by Associated Universities, Inc.. under contract No. DE-AC02-76CH00016 with the United States Department of Energy. Brookhaven is an affirmative action/equal opportunity employer. Report No. BNL 52110. DOE/OSTI-4500-lNTERIM 2, distribution categories UC-13 and UC-500 — general, miscellaneous and progress reports (nuclear and nonnuclear). Printed in the United States of America. Available from the National Technical Infor- mation Service. U.S Department of Commerce, 5285 Port Royal Road. Springfield, VA 22161. NTIS price codes: printed copy — A05, microfiche copy — A01. This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, nor any of their contractors, subcontractors, or their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, appa- ratus, product, or process disclosed, or represents that its use would not infringe pri- vately 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 subcontractor thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency, contractor or subcontractor thereof. The cost of the use of color in this publication was paid by Associated Universities. Inc.. using non-Department of Energy funds. Contents 2 A Word About BNL 62 Biology Department 62 A Golden Opportunity 4 Brookhaven Today 64 Mismatch Repair — Nature's Remedy for Mistakes 6 The National Synchrotron Light Source: 66 Beaming In on Structural Biology The Best and the Brightest 68 Applied Mathematics Department 12 The Big Machines 68 The Computer Connection 14 Alternating Gradient Synchrotron Department 70 Reactor Division 14 Heavy Ions — A New Probe for the AGS 70 The HFBR — A Premier Source of Neutrons 16 SEB — The Multipurpose Beam 18 A Boost for Physics 72 Safety and Environmental Protection Division 72 Getting (he Dose Down 20 Accelerator Development Department 20 The Promise of RHIC 74 Instrumentation Division 22 The AGS Gets a Boost 24 Super Magnets for a Super Collider 74 Tiny Photocell With Mighty Potential 26 Physics Department 76 General and Administrative 26 In Search of a Rare Event 28 The New Superconductors: Why Do They Work? 78 Financial Report 30 Death of a Star 79 Meetings 32 Department of Nuclear Energy 32 Being Prepared 80 Honors 34 Safety in Computer Codes 36 Safe Disposal of High-Level Nuclear Waste 82 Organization 38 Department of Applied Science 38 Saving Energy Saves Dollars 40 A Burning Question 42 PFTs: Detective Gases 44 National Synchrotron Light Source Department 44 In Synch With the New Superconductors 46 At the Micron Level — 3-D Images 48 Holography — The View From the Light Source 50 Chemistry Department 50 Probing Transient Molecules 52 High Pressure Work on Alkanes 54 Hot Oxygen Atoms Yield New Chemistry 56 Medical Department 56 Breakthrough in Testing for Lead Toxicity 58 To Better the Odds Against Cancer 60 Magic Bullets Find Their Target A Word About BNL uring the years 1986 and 1987, Brookhaven National DLaboratory' (BNL) and Asso- ciated Universities. Inc. (AUI) cele- brated the fortieth anniversaries of both their foundings and their long association. AUI was formed in 1946 by a group of nine universities, for the purpose of establishing and managing a laboratory in the Northeast that would help ensure the continued progress of nuclear science in peace- The UNI. site time. In less than a year. BNL was a Alternating Gradient Synchrotron 1947 fact. 1971 Today. AUI continues to manage BNL under a contract with the U.S. Department of Energy. The nine sponsoring universities are: Colum- bia University. Cornell University. Harvard University. The Johns Hop- kins University. Massachusetts Institute of Technology, University of Pennsylvania, Princeton University. University of Rochester and Yale University. Brookhaven is a multidisiplinary laboratory that carries out basic and applied research in the physical, biomedical and environmental Cosmotron sciences and in selected energy High Flux Beam Reactor 1952 technologies. At Brookhaven, the 1976 resources of academia and the fed- eral government are brought together to carry out research endeavors not normally within the capability of a single university. BNL is located on Long Island in New York, at Upton, the site of a former army camp where U.S. sol- diers trained during both World Wars. Now. some 3.200 civilian employees help the science go for- ward at a site that resembles a sprawling university campus. The physical plant contains about 300 buildings and other structures, sit- Brookhaven Graphite Research Reactor uated on 5.265 acres of wooded National Synchrotron Light Source 1953 property. 1982 The UNI. site 1987 Brookhaven Today wo years of research are tron Light Source (NSLS). The appli- described within the pages cation potentials of these materials Tof this issue of Brookhaven in industry and science are exciting. Highlights. They put the cap on the The Laboratory participated in the Laboratory's first 40 years ... years Irvine/Michigan/Brookhaven collab- of forefront science certainly worth oration, which, over a six-second celebrating period in February 1987. observed That's just what we did in Sep- eight neutrinos that were probably tember 1987, with a two-day scien- ejected from a supernova during a tific symposium emphasizing the stellar explosion in the Greater next 40 years, and beyond. Magellanic Cloud. The observations But I believe that every year is the were made in a detector located at product of the ones that preceded it. the bottom of a 200-foot-deep Cleve- In the two years just past, we con- land salt mine and contributed to tinued to lay the groundwork for a theories about heavy element crea- future that we expect to be as impor- tion in the universe. tant and exciting as our past has President Reagan, in January been. 1987, gave his approval to the con- Much of the success of our course struction of the SSC. If approved by of action can be characterized by the Congress, this facility will be the word super, as in superconductivity, largest proton collider in the world. supernova and Superconducting Brookhaven has been involved in a Super Collider (SSC). As a multidis- collaborative effort with Fermi ciplinary laboratory, we have been National Accelerator Laboratory and very gratified to have been a major Lawrence Berkeley Laboratory on the player in these milestone scientific R**D efforts to produce machine- events. quality superconducting magnets for Brookhaven was the third institu- the SSC. tion to produce high temperature I can only wish for the SSC that it superconductors and the second to prove as reliable, productive and ver- create a material that becomes satile as the AGS has been through superconducting above 90 kelvins. its 27 years. Today, the advent of a Intensive research on these mate- program searching for the very rare rials is currently under way at the decay of K mesons is providing the Alternating Gradient Synchrotron opportunity to explore the 100- (AGS). High Flux Beam Reactor trillion-electron-volt energy domain. (HFBR) and the National Synchro- In 1986. with the commissioning of the beam transfer line connecting the AGS and the Tandem Van de Graaff, our proton accelerator took on an added dimension, as scientists began experimenting there with heavy ions generated in the Tandem. The AGS was also the focus of two ceremonies at our 40th anniversary celebration. Fittingly, the entire AGS complex was dedicated to the memory of Leland J. Haworth. BNL's second Director, who initiated the AGS proposal and saw the project through to completion. Also, ground was broken for the Accumulator- Booster accelerator, which, when completed and coupled to the AGS, will increase every aspect of the AGS physics program many times over. With the Accumulator-Booster, the AGS will be ready to serve as the injector for the accelerator we have proposed as BNL's next major project: the Relativistic Heavy Ion Collider (RHIC). I was extremely pleased by the positive review the U.S. Depart- ment of Energy (DOE) gave the RHIC proposal in June 1987. During the last two years, many important milestones were met at the NSLS. which, as this year's spe- cial section shows, has matured into a world-class facility, where excite- ment is always in the air. Witness the pace of achievements in 1987 alone: The 200-milliampere current barrier was broken in the x-ray ring In January, the initiative to develop a compact synchrotron received its first funds in March, light came out of the first of five Phase H beam lines in May, the first spectrum of a monochromatic beam was recorded at the Laser Electron Gamma Source of the x-ray ring in June, and the Phase II expansion was dedicated in September. I was exceptionally proud of the Light Source when it was singled out in July 1986 as the host facility for 52 winners of the High School Honors Research Program sponsored by the DOE. This proved such a suc- cess. DOE asked us to repeat it in July 1987. As vital and productive as our that links BNL, 14 universities and present machines are, including the several industrial laboratories, giving NSLS and the AGS, we recognize the them access to several supercomput- need for continued research into ers across the country.
Recommended publications
  • The Birth and Childhood of a Couple of Twin Brothers V
    Proceedings of ICFA Mini-Workshop on Impedances and Beam Instabilities in Particle Accelerators, Benevento, Italy, 18-22 September 2017, CERN Yellow Reports: Conference Proceedings, Vol. 1/2018, CERN-2018-003-CP (CERN, Geneva, 2018) THE BIRTH AND CHILDHOOD OF A COUPLE OF TWIN BROTHERS V. G. Vaccaro, INFN Sezione di Napoli, Naples, Italy Abstract The context in which the concepts of Coupling Imped- Looking Far ance and Universal Stability Charts were born is de- scribed in this paper. The conclusion is that the simulta- Even before the successful achievements of PS and neous appearance of these two concepts was unavoidable. AGS, the scientific community was aware that another step forward was needed. Indeed, the impact of particles INTRODUCTION against fixed targets is very inefficient from the point of view of the energy actually available: for new experi- At beginning of 40’s, the interest around proton accel- ments, much more efficient could be the head on colli- erators seemed to quickly wear out: they were no longer sions between counter-rotating high-energy particles. able to respond to the demand of increasing energy and intensity for new investigations on particle physics. With increasing energy, the energy available in the Inertial Frame (IF) with fixed targets is incomparably Providentially important breakthrough innovations smaller than in the head-on collision (HC). If we want the were accomplished in accelerator science, which pro- same energy in IF using fixed targets, one should build duced leaps forward in the performances of particle ac- gigantic accelerators. In the fixed target case (FT), ac- celerators. cording to relativistic dynamics, an HC-equivalent beam should have the following energy.
    [Show full text]
  • October 1986
    C Fermi National Accelerator Laboratory Monthly Report October 1986 'Ht», i't:.t"tS?t M Fermi/ab Report is published monthly by the Fermi National Accelerator Laboratory Technical Publications Office, P.O. Box 500, MS 107, Batavia, IL, 60510 U.S.A. (312) 840-3278 Editors: R.A. Carrigan, Jr., F.T. Cole, R. Fenner, L. Voyvodic Contributing Editors: D. Beatty, M. Bodnarczuk, R. Craven, D. Green, L. McLerran, S. Pruss, R. Vidal Editorial Assistant: S. Winchester The presentation of material in Fermilab Report is not intended to substitute for nor preclude its publication in a professional journal, and references to articles herein should not be cited in such journals. Contributions, comments, and requests for copies should be addressed to the Fermilab Technical Publications Office. 86/8 Fermi National Accelerator Laboratory 0090.01 011 the cover: M. Stanley Livingston (May 25, 1905 - August 25, 1986) and Ernest 0. Lawrence beside one of the earliest cyclotrons ca. 1933. A remembrance of M.S. Livingston begins on page 21 of this issue. Operated by Universities Research Association, Inc., under contract with the United States Department of Energy Table of Contents Who's Who in the Upcoming Fixed-Target Run? Mark W. Bodnarczuk Saturday Morning Physics: a Report Card 17 Drasko Jovanovic, Barbara Grannis, and Marjorie Bardeen M. Stanley Livingston; 1905 - 1986 21 F.T. Cole Manuscripts, Notes, Lectures, and Colloquia Prepared or Presented from September 21 to October 20, 1986 23 Dates to Remember inside back cover Who's Who in the Upcoming Fixed-Target Physics Run? Mark W. Bodnarczuk Introduction The purpose of this article is to identify the 16 experiments and major test beam programs that will operate during the upcoming fixed-target run scheduled to begin in the middle of March 1987.
    [Show full text]
  • Center for History of Physics Newsletter, Spring 2008
    One Physics Ellipse, College Park, MD 20740-3843, CENTER FOR HISTORY OF PHYSICS NIELS BOHR LIBRARY & ARCHIVES Tel. 301-209-3165 Vol. XL, Number 1 Spring 2008 AAS Working Group Acts to Preserve Astronomical Heritage By Stephen McCluskey mong the physical sciences, astronomy has a long tradition A of constructing centers of teaching and research–in a word, observatories. The heritage of these centers survives in their physical structures and instruments; in the scientific data recorded in their observing logs, photographic plates, and instrumental records of various kinds; and more commonly in the published and unpublished records of astronomers and of the observatories at which they worked. These records have continuing value for both historical and scientific research. In January 2007 the American Astronomical Society (AAS) formed a working group to develop and disseminate procedures, criteria, and priorities for identifying, designating, and preserving structures, instruments, and records so that they will continue to be available for astronomical and historical research, for the teaching of astronomy, and for outreach to the general public. The scope of this charge is quite broad, encompassing astronomical structures ranging from archaeoastronomical sites to modern observatories; papers of individual astronomers, observatories and professional journals; observing records; and astronomical instruments themselves. Reflecting this wide scope, the members of the working group include historians of astronomy, practicing astronomers and observatory directors, and specialists Oak Ridge National Laboratory; Santa encounters tight security during in astronomical instruments, archives, and archaeology. a wartime visit to Oak Ridge. Many more images recently donated by the Digital Photo Archive, Department of Energy appear on page 13 and The first item on the working group’s agenda was to determine through out this newsletter.
    [Show full text]
  • 2007 Annual Report APS
    American Physical Society APS 2007 Annual Report APS The AMERICAN PHYSICAL SOCIETY strives to: Be the leading voice for physics and an authoritative source of physics information for the advancement of physics and the benefit of humanity; Collaborate with national scientific societies for the advancement of science, science education, and the science community; Cooperate with international physics societies to promote physics, to support physicists worldwide, and to foster international collaboration; Have an active, engaged, and diverse membership, and support the activities of its units and members. Cover photos: Top: Complementary effect in flowing grains that spontaneously separate similar and well-mixed grains into two charged streams of demixed grains (Troy Shinbrot, Keirnan LaMarche and Ben Glass). Middle: Face-on view of a simulation of Weibel turbulence from intense laser-plasma interactions. (T. Haugbolle and C. Hededal, Niels Bohr Institute). Bottom: A scanning microscope image of platinum-lace nanoballs; liposomes aggregate, providing a foamlike template for a platinum sheet to grow (DOE and Sandia National Laboratories, Albuquerque, NM). Text paper is 50% sugar cane bagasse pulp, 50% recycled fiber, including 30% post consumer fiber, elemental chlorine free. Cover paper is 50% recycled, including 15% post consumer fiber, elemental chlorine free. Annual Report Design: Leanne Poteet/APS/2008 Charts: Krystal Ferguson/APS/2008 ast year, 2007, started out as a very good year for both the American Physical Society and American physics. APS’ journals and meetings showed solidly growing impact, sales, and attendance — with a good mixture Lof US and foreign contributions. In US research, especially rapid growth was seen in biophysics, optics, as- trophysics, fundamental quantum physics and several other areas.
    [Show full text]
  • Cross Sections
    Cross Sections DEPARTMENT OF PHYSICS AND ASTRONOMY UNIVERSITY OF ROCHESTER SPRING 2003 Second department alumnus to win the Nobel Prize © THE ROYAL SWEDISH ACADEMY OF SCIENCES Physics and Astronomy • SPRING 2003 Message from the Chair —Arie Bodek graduates, Laura Schmidt and Elizabeth tributed generously to the support of the Because of the great success of the Strychalski were awarded the Catherine department. By completing the form on sesquicentennial celebration, the Uni- Block and Janet Howell Prizes in 2002, the back cover of our newsletter, or by versity has initiated a new tradition and Jason Nordhaus and David Etlinger responding to our current drive for the of hosting a Meliora won Goldwater Scholarships. Mandel endowment, you can continue Weekend reunion every Over the years we have given high (or begin) that tradition of giving that year (see www.rochester. priority to the training of our under- will assure the future excellence of the edu/alumni/). The theme graduate and graduate students. This department. in fall 2003 is “Innova- attention has not gone unnoticed and Other ways to help our cause is to in- tion,” and we plan to has just been recognized in a nation- form any promising students about our highlight the most wide survey of U.S. graduate students summer undergraduate research program recent innovations and conducted in 2001. The Department of (REU), and to encourage students inter- discoveries in physics and astronomy. Physics and Astronomy at Rochester was ested in careers in physics or astronomy We encourage all our alumni and friends ranked second nationwide in overall to apply for graduate study at Rochester.
    [Show full text]
  • ATLAS Installs Final Big Wheel
    I n t e r n at I o n a l J o u r n a l o f H I g H - e n e r g y P H y s I c s CERN COURIERV o l u m e 47 n u m b e r 9 n o V e m b e r 2 0 07 ATLAS installs final big wheel DESY LHC FOCUS BROOKHAVEN FLASH makes pulses Preparing for the Ernest Courant looks at design energy p8 data onslaught p17 back 60 years p26 CCNovCover.indd 1 17/10/07 10:45:38 Project8 9/10/07 10:38 Page 1 NIM CAMAC VME NIMbox CC-USB VME-USB VDIS2 A programmable NIM Module with Controller with USB Controller with USB Diagnostic USB Interface Interface Interface Module for VME ! NPN20 - Progr.Logic Unit, 20 NIM I/O ! NPT20 - Progr. Logic Unit, 20 TTL I/O ! NDL8 - Leading Edge 8-fold Discriminator ! NAD4 - 100 MHz 4 channel F-ADC ! NDA8 - 100 MHz 8 PCI and VME channel DAC, e.g. adapters for CAMAC for detector are also available simulation ! New! Scaler, TDC, MLU, CQ16 MDGG8 ADC2530 and moreÖ 16 channel 12 bit CAMAC Progr. Delay and Gate 8 channel peak QDC, down to 25fC/count Generator, Scaler sensing 13 bit ADC USB cable, driver and software included Desk version (Nembox) for didactical experiments available Developed in collaboration with University of Heidelberg www.wiener-d.com Plein & Baus GmbH. Muellersbaum 20, 51399 Burscheid, Germany Phone: +49 (0)2174 6780, Fax: +49 (0)2174 678 55 CONTENTS Covering current developments in high- energy physics and related fields worldwide CERN Courier is distributed to member-state governments, institutes and laboratories affiliated with CERN, and to their personnel.
    [Show full text]
  • How US Physicists First Came to Work at CERN
    CERN-US COLLABORATION How US physicists first came to work at CERN After help from an eminent US figure, CERN was founded in the 1950s to provide a European stage for physics. Once the curtain was up, US physicists found the new laboratory increasingly attractive. In the first of two articles, Gordon Fraser traces the history of CERN-US collaboration from the post-war era to the advent of collider physics in the 1970s. In the late 1940s, Europe was major role in establishing the US struggling to emerge from the ruins Brookhaven National Laboratory. of the Second World War. The US The establishment of an analo­ had played a vital role in the con­ gous European laboratory was to flict, but had been less affected mat­ Rabi a natural and vital need. erially, and a shining vision of life However, on arrival in Florence he across the Atlantic was a beacon of was disturbed to find that there was hope for millions of Europeans liv­ no mention of this idea on the ing in austerity, if not misery. agenda. Two Europeans, Pierre i In a speech at Harvard on 5 June Auger (then UNESCO's director of 1947, US Secretary of State George exact and natural sciences) and C Marshall said that the US should Edoardo Amaldi, who was to be a help to "assist in the return of nor­ constant driving force, helped Rabi mal economic health in the world". Playing a key role in the post-Second World War through the intricacies of European North American "Marshall aid" was groundwork for what would become CERN was US physicist committee formalities.
    [Show full text]
  • BNL Bulletin
    the Vol. 61B - No. 17 ulletin May 18, 2007 Distinguished Scientist Emeritus Ernest Courant All Are Welcome to Attend Honored by University of Rochester CFN Ribbon Cutting Ceremony he University of Rochester, where BNL’s Dis- 5/21, 11 a.m. Ttinguished Scientist Emeritus Ernest Courant earned his Ph.D. in 1943, will honor him with the Rochester Distinguished Scholar Medal at this year’s A Highlight of the 2007 Joint NSLS/CFN commencement ceremony, to be held tomorrow, May Users’ Meeting, 5/21-23 19. The University issued the following press release citing Courant and his work: All scientists who work in particle physics today owe a debt to Ernest Courant. His groundbreaking D0180602 scholarship has changed the way we think about and understand the structure of the universe. One of the trio of researchers who originated D0230500 the idea of “strong focusing” accelerators, Pro- fessor Courant is one of the founding fathers of modern high-energy particle physics. Thanks to Professor Courant’s breakthrough in developing Roger Stoutenburgh the first high-energy, strong focusing accelera- he 2007 Joint National Synchrotron Light Source (NSLS) tor—and the particle accelerators that have fol- and Center for Functional Nanomaterials (CFN) Users’ Roger Stoutenburgh T lowed since—physicists have been able to peek Meeting will be held at Berkner Hall from Monday, May 21 inside individual atoms to understand the funda- At BNL, Courant joined the Proton Synchrotron Di- through Wednesday, May 23. The meeting is a forum for re- mental structure of matter, the forces holding it vision as an associate scientist in June 1948.
    [Show full text]
  • C-AD Particle Post
    C-AD Particle Post Particle Post June 2007 "Life is a pure flame, and we live by an invisible sun within us" ~Thomas Browne To review previous issues A Note From Our Chairman The RHIC Retreat on July 16-17 will have machine availability as one of its foci. The run this year has a binary character to it. Either we have many stores back-to-back or we have stores separated by large time intervals due to equipment failures or operations inefficiencies. There is a lot to be discussed and then worked on. Despite the difficulties, we are close to the maximum estimated delivered luminosity for Run 7. It is clear that we have the potential to do even better. Stochastic cooling is a great success. We are now a factor of 5 away from our enhanced luminosity goal proposed with electron cooling of ions. C-AD proved once again that it was worthy of ISO 14001 and OHSAS 18001 recertification. Congratulations for getting through the audit with no identified deficiencies and a commendable practice. The DOE Inspector Generals Office will be at BNL in early June to look at cyber security. Remember the rules to have screen savers that timeout after 15-30 minutes of non-use, passwords, lock your offices when leaving and do NOT access adult material websites. June 14 is our Barbeque. Don’t forget to buy a ticket and be in the running for some great prizes and of course great food. Administration Despite the uncertain start to FY 2007, the Department’s financial health is excellent.
    [Show full text]
  • N.Y. 11F73 INS Mcsnff IS Wum\I I EDITOR's FOREWORD
    BNL 51377 MOOKHAVfN NATIONAL LAKMtATORY IRC* N.Y. 11f73 INS MCSNff IS WUm\i i EDITOR'S FOREWORD The planning and organization of this celebration was done by John Blewett, Ted Kycia, Vinnie LoDestro, Lyle Smith and Carl Thien, under the general direction of Ronald Rau and with the invaluable assistance of Kit D'Ambrosio. The logo which graces the cover of these symposium proceedings was de- signed by Per Dahl. The job of transcribing the tapes was done by Anna Kissel, and it was often a challenging one! I am to blame for the editing, which I hope has not distorted history too much. Joyce Ricciardelli has very ably produced the final manuscript and seen it through the complex process of publica- tion. All of us took pleasure and pride in celebrating the AGS and in putting this book together, and we hope you enjoy it. - iii - Preface On March 17, 1960, a beam was first introduced into the newly constructed Brookhaven Alternating Gradient Synchrotron. On March 26, a hundred turns of circulation were achieved, and on July 29 the beam WJS first accelerated to the design energy of 30 GeV. Thus, hewever one defines the exact start of life during the series of steps by which a new accelerator is made operational, the year 1960 marks the start-up of the AGS, and in 1980 we cele- brate the twentieth anniversary of that event. The AGS, together with the newly functioning PS at CERN, carried particle physics into a new world of higher energies and unanticipated discoveries. The AGS and the PS both embodied the new principle of strong focusing and demonstrated that, with its aid, a new era of particle accelerators haJ opened.
    [Show full text]
  • Laboratori Nazionali Di Frascati
    10 1.2 From the Editors Sergey Ivanov, IHEP, Protvino. 142281, Russia Mail to: [email protected] Yuri Shatunov, BINP, Novosibirsk, 630090, Russia Mail to: Yu.M.Shatunov@ inp.nsk.ru Theme section of this issue, which was compiled under a tight time schedule, is Accelerator Activities in Russia. This topic is disclosed in form of a representative selection of reports presented during the recent 22nd Russian Particle Accelerator Conference. The entire scope of those presentations is available via the JACOW web site at www.jacow.org/r10/. The editors thank the JACOW collaboration for permission of advanced paper publishing of the selected papers from the conference proceedings electronic volume. 2 Letters to the Editors 2.1 A Letter to the Editors Alexander Chao SLAC National Accelerator Laboratory, Menlo Park, California, USA Mail to: [email protected] Enzo Haussecker and I just submitted a report ―Influence of Accelerator Science on Physics Research‖ (see Sec 2.2) for your consideration to be included in the ICFA Beam Dynamics Newsletter. That report has an intended technical nature and was written as a technical report. After completing the study, however, I have a few comments to add, not as part of the report, but as my personal comments. I am sending them to see if they might also be included in the Newsletter. 1. To me, this report underscores a general lack of recognition of the contributions by accelerator science to the advancement of physics and other sciences. Indeed, the first initiation of this study has been based on the observation that accelerator science has sometimes been considered a supporting science and not quite worthy of its own standing, in spite of the wealth of facts speaking to the contrary.
    [Show full text]
  • Man-Made Accelerators (Earth-Based)
    Man-Made Accelerators (Earth-Based) Ron Ruth SLAC Outline of Talk • Introduction • History of Particle Acceleration • Basic Principles – What are the forces? – Acceleration and radiation – Synchronism – Basic device ideas, linear circular – Beams and physics – Storage ring colliders – Electron Linear Accelerators – The next window: linear colliders • The present generation – Storage Ring Factories –LHC – Linear colliders: ILC • The next generations – Two beam colliders – Laser acceleration – Plasma acceleration – Muon colliders Cosmic Ray Spectrum • OK, OK, so our beam so our energy is a bit lower than yours. • Only TeV scale now. • But we have got you with flux, if not energy. • More on that later. From ‘The Evolution of Particle Accelerators and Colliders’ by Wolfgang K. H. Panofsky “WHEN J. J. THOMSON discovered the electron, he did not call the instrument the was using an accelerator, but an accelerator it certainly was. He accelerated particles between two electrodes to which he had applied a difference in electric potential. He manipulated the resulting beam with electric and magnetic fields to determine the charge-to-mass ratio of cathode rays. Thomson achieved his discovery by studying the properties of the beam itself—not its impact on a target or another beam, as we do today. Accelerators have since become indispensable in the quest to understand Nature at smaller and smaller scales. And although they are much bigger and far more complex, they still operate on much the same physical principles as Thomson’s device.” [1897] Livingston Chart • Graph of concepts • Points are devices • Energy is plotted in terms of the laboratory energy when colliding with a proton at rest to reach the same center of mass energy.
    [Show full text]