People and things

Herwig Schopper (right) talks with Jean Teillac, President of CERN Council, at a special Council meeting in April. At this meeting. Professor Schopper was unanimously appointed as the next CERN Director General, to take up office on 1 January 1981.

(Photo CERN 208.4.80)

Herwig Schopper CERN's next Director General

On 25th Apri/f at a specially con­ vened session of the CERN Council delegates of the twelve CERN Mem­ ber States unanimously appointed Professor Herwig Schopper as Director General of CERN for the five years 1981-85. He will suc­ ceed John Adams, Executive Direc­ tor General, and Leon Van Hove, Research Director General, on 1 January 1981. Herwig Schopper will move to CERN from his present position as Chairman of the Board of Directors at the DESY Laboratory, a position he assumed in 1973. Under his leadership, DESY has enhanced still further its reputation as a leading high energy physics Laboratory — the physics programme on the DORIS electron-positron storage rings has been amongst the most i fruitful in the world, and the rapid construction of the large PETRA search Association which operates On people ring has been one of the major feats the Laboratory. of accelerator building. Professor A t the recent annual meeting of Schopper has guided DESY through Ron Russell retired from the Ruther­ the American Physical Society in this period with total commitment ford Laboratory at the end of Chicago, Herman Feshbach of MIT to its physics aims and skilful judge­ March. Ron had participated signif­ began his term as APS President. ment as to how these aims could icantly in the construction and oper­ Maurice Goldhaber, Distinguished be achieved. ation of the Nimrod proton syn­ Scientist at Brookhaven, was named He is no stranger to CERN. In chrotron, becoming Head of the vice-president elect. Arthur Schaw- 1970 he became Head of the Nu­ Nimrod Division. In recent years he low of Stanford became this year's clear Physics Division and, before has headed the Division building vice-president. he returned to the Federal Republic the Spallation Neutron Source, and of Germany in 1973, he was mem­ was Chief Engineer at Rutherford. ber of the CERN Directorate for the Norman Ramsey, Higgins Professor Experimental Programme. of Physics at Harvard University, He returns to lead the Laboratory has been elected Chairman of the Royal visitor at TR/UMF when it is hoped that the world's Governing Board of the American largest machine will be under con­ Institute of Physics. Norman Ram­ On 1 April, His Royal Highness struction — the electron-positron sey is a well-known personality on Prince Charles went on a short tour storage ring LEP. Schopper's knowl­ the US high energy physics scene. of the TR/UMF site during a visit edge and experience in particle phy­ He was among those who esta­ to Vancouver. This included an in­ sics and in the management of large blished the Brookhaven Laboratory spection of the operation of the machine projects should prove a and has also been closely asso­ accelerator itself, a typical experi­ valuable asset to CERN during this ciated with Fermilab, where he is ment in the basic physics pro­ challenging time. President of the Universities' Re- gramme, the biomedical facilities

160 CERN Courier, June 1980 Prince Charles has the muon to electron conversion experiment at the TRIUMF cyclotron explained by Doug Bryman (left) and the Laboratory Director, Jack Sample (right).

(Photo TRIUMF)

of the British Columbia Cancer Foundation and their programme of cancer therapy, and finally the radiochemical facilities installed in the chemistry annexe by Atomic Energy of Canada Ltd. for commer­ cial production of radioisotopes. While inspecting the AECL hotcells. Prince Charles used the master- slave manipulators to turn a stop­ cock and thereby symbolically inau­ gurate the chemical processing of irradiated targets.

Jacques Prentki, leader of CEHN's Theory Division, celebrated his 60th birthday on 17 April. To mark the occasion, some close friends reminisced on different periods in his career: Ph. Meyer spoke on 'good times in Paris', Bernard d'Es- pagnat on 'the pioneering years at CERN', Dan/e/e Amati on 'the Golden age', Tatiana Faberge on 'theory division through the years' and Paul Musset on 'the theorist in interaction'. This was followed by a short concert of chamber music.

History of particle physics

An International Symposium on the History of Particle Physics was held at Fermilab from 28-31 May. It concentrated on the origins of particle physics back in the 1930s and 40s before the advent of the big particle accelerators. The im­ pressive list of main speakers in­ cluded Paul Dirac, Gilberto Bernar- dini, Viki Weisskopf, Carl Anderson, Satio Hayakawa, Robert Serber, Bruno Rossi, Willis Lamb, Julian Schwinger and Murray Gell-Mann.

Seen here together with Jacques Prentki (left) at the celebrations at CERN to mark his 60th birthday are Tatiana Faberge of Theory Division Secretariat and Daniele Amati.

(Photo CERN 120.4.80)

CERN Courier, June 1980 161 One of the 4000 horsepower compressors used by the Fermilab Central Helium Liquefier.

(Photo Fermilab)

SCIPP at Santa Cruz

The Regents of the University of California have approved the forma­ tion of a new Institute for Particle Physics on its Santa Cruz Campus. Acronymed SCIPP (the Santa Cruz Institute for Particle Physics I it builds on the strength of existing groups of theoretical and experi­ mental particle physicists. Benefit­ ting from its close proximity to SLAC, the experimental group (started in 1970) has carried out programmes on inelastic muon- nucleon scattering, early charm searches in pion-nuc/eon scattering and dimuon production, all in colla­ boration with SLAC Group D. In addition, a tagged photon scattering experiment has been performed at Fermilab. The principal new enter­ prise of SCIPP is co-responsibility, again with SLAC Group D (plus groups from the Universities of Illi­ nois and Washington) for the next- generation SPEAR detector, called tevatron proton synchrotron. Initial such a way that this limit has com­ MARK III. operation provided liquid helium at pletely disappeared. Under the new Senior fellows at SCIPP are theo­ the rate of 2000 litres per hour, conditions no difficulty was found rists Richard Brower, Michael which is just below half the maxi­ in storing up to 18 mA in a single Nauenberg, and Joel Primack; ex­ mum capacity. The helium will even­ bunch, Such currents were already perimentalists David Dorfan, visitor tually be distributed via satellite stored in PETRA when only 4 r.f. Hartmut Sadrozinski, Terry Schalk, plants to the one thousand super­ cavities were installed but could Abe Seiden, and Dennis Smith. conducting magnets of the Tevatron. not be reproduced once the 60 cavi­ Clemens Heusch is Acting Director. ties needed for higher energies were built in. Serving on its Advisory Committee PETRA improving are Geoffrey Chew, George Trilling, Sidney Drell, Frederick Reines and During a few shifts devoted to ma­ Chinese meeting Donald Oster brock. chine developments on 20 April, the stored beam of PETRA reached Earlier this year, a high energy phy­ the design energy of 19 GeV. Within sics meeting, organized by the Helium starts to flow at Fermilab the next weeks the conditions for Academia Sinica, was held in the production runs at energies near pleasant winter climate of Guang­ On 18 April, Fermilab brought into to 19 GeV will be worked out by zhou, Canton. This was one of the operation the world's largest helium the machine group. Major progress first major scientific meetings to liquefier plant. The liquefier, con­ has also been achieved in the beam be held in China in recent years. It verted from an oxygen/nitrogen currents which can be stored in attracted some 100 physicists from plant previously used in the US PETRA. The reason for the earlier within China, together with some space programme, is destined to 'current limit' at the 7 GeV injection 50 researchers of Chinese origin supply the cooling for the supercon­ energy seems to be understood and working in other countries, and the ducting magnets of the 1000 GeV the machine can now be tuned in physics was of a high standard.

162 CERN Courier, June 1980 A recent display of fifth century BC Greek vases has been exhibited at Fermilab using The inscription reads 'The 1980 Guangzhou an interesting background of magnet Conference on Theoretical Particle Physics'. laminations. The meeting was one of the first major scientific meetings to be held in China in (Photo Fermilab) recent years.

m —

fa fit

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if.

The meeting was conducted in Chi­ voiced his unambiguous support for quences of their research. Those nese, but it is planned to publish fundamental research. Here are a who dispose of knowledge have a the proceedings in English. After­ few excerpts from his statement: special responsibility which must wards, all participants joined in an '...pure research provides the nour­ find expression in practical action. extensive tour of the country, visit­ ishment for future development. In particular, scientists must try to ing Beijing, Shanghai and Hang- Non-applied research, such as parti­ make their knowledge comprehen­ chow. cle physics or astrophysics, is done sible to the public and to politicians. because it springs from an inborn From 10-30 August the 21st Scot­ human curiosity to find the truth. tish Universities' Summer School A culture conscious of its own value in Physics (a NATO Advanced Study must interest itself in fundamental Institute) on Gauge Theories and knowledge concerning the nature Experiments at High Energies will of matter, the universe and life be held at the University of St. An­ itself.' drews. Further information from The Chancellor expressed his satis­ A. Walker, Department of Physics, faction at the recent, widely ac­ University of Edinburgh, Edinburgh claimed results from the PETRA EH9 3JZ, Scotland. machine at DESY. 'The indirect evidence for the existence of gluons Profession of faith appears to be an important break­ in fundamental research through in the understanding of one of the fundamental forces of Natu­ At a Physics Congress in Ulm the re. ' He concluded by saying that Chancellor of the Federal Republic 'Scientists are responsible for consi­ of Germany, Helmut Schmidt, dering any undesirable conse-

CERN Courier, June 1980 163 A complete ^ range of fast 2" PMTs

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CERN Courier, June 1980 165 New Gas Analysis System MSQ 200 from LEYBOLD-HERAEUS: Continuous Monitoring of Gos Composition

Optimal gas analysis is increasingly Typical applications include: modules for assembly. Suitable gaining significance for industry and • Monitoring of protective gas extension modules are available environmental protection. atmospheres to adapt this system to any existing gas • Monitoring of gas extraction analysis and control problem. To meet this requirement LEYBOLD- and gas recovery systems HERAEUS have developed an analysis We shall be pleased to forward • Control of atmosphere in anneal­ system which is versatile and economical detailed information. ing and sintering furnaces and atthe same time ensures very high • Exhaust gas monitoring consistency of test results. • Environmental pollution control This new gas analysis system is • Process gas analysis preferably used for continuous Many of these are recurrent routine monitoring of gas atmospheres of tests, such as fast and reliable analysis basically know composition. It detects in process or quality control. and records deviations from desired concentration values of components The MSQ 200 Mass Spectrometer in gas mixtures as well as contamination Analysis System is available as a LEYBOLD-HERAEUS by additional components. complete mobile unit or as a set of Q Postfach 510760 D 5000 Köln 51

166 CERN Courier, June 1980 NATIONAL SUPERCONDUCTING RESEARCH CYCLOTRON LABORATORY SCIENTIST MICHIGAN STATE UNIVERSITY

A research scientist position is available at Professorship (1 year visiting appointment) to TRIUMF in the area of intermediate energy pro­ provide leadership in an area of accelerator design ton induced reactions. An experimentalist, having related to the superconducting cyclotron pro­ a number of years of postdoctoral experience, is gram. Candidates should have at least 12 years sought to take a major responsibility for the pro­ of post doctorate accelerator experience and gram of the University of Alberta group. Some important contributions to the technical literature additional duties in the area of facility develop­ in the area of accelerator design. ment may be anticipated. The successful candi­ date will be eligible for project tenure after a pro­ bationary period, and additional benefits similar to those for University Faculty appointments are applicable. Salary will be commensurate with Applications should be sent, before July 1, 1980, experience but should be in the range of 20,000 to: to 30,000 $C. B. Waldman, Associate Director Cyclotron Laboratory Please send a resume and three letters of refer­ Michigan State University ence to: East Lansing, Michigan 48 824 USA. Research Scientist Search Committee Nuclear Research Centre University of Alberta Edmonton, Alberta T6G 2N5 Michigan State University is an Equal Opportunity/ Affirmative Action Employer. to arrive not later than September 1 5, 1 980.

Would you like to The Laboratory of Nuclear Studies at Cornell University has an opening for a acquire a heavy ion linear accelerator? PHYSICIST-RESEARCH ASSOCIATE

After some 16 years of successful operation, to participate in MICROWAVE SUPERCONDUC­ the physics department of Manchester University TIVITY R/D directed at application to High wish to dispose of their 10 MeV/nucleon heavy Energy Electron Accelerators. ion Linac.

It was operated with a beam pulse of 2.8 ms at 16 p. p. s for different ions including those Some experience in low temperature and micro­ wave work highly desirable. Twoyear appoint­ with a charge/mass ratio of V10. The main ment with renewal possibilities. Apply by letter to: items are two copper - clad steel alvarez tanks complete with drift tubes M. TIGNER tuners, vacuum systems and power supplies. Wilson Laboratory, Cornell University Ithaca, New York, 14853 U.S.A. Offers in excess of £ 50.000 are invited.

Enquiries to: Mr. R. King Cornell is an equal opportunity employer. Linear Accelerator Laboratories The University Manchester M13 9 ILU.K.

CERN Courier, June 1980 167 MAXWELL is participating in the fusion power reality... Fusion power will be the answer to tomorrow's energy needs...and experimental programs like these will turn fusion power theory into fusion power reality. For high voltage systems and components for your controlled fusion program...call Maxwell.

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168 CERN Courier, June 1980 LAMBDA Alimentations stabilisees Semi-conducteurs de regulation delimitation mondiale

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CERN Courier, June 1980 171 Haefely Today

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172 CERN Courier, June 1980 VARIAN presents the new 936-40 Porta-testtm. The only helium mass spectrometer leak detector not requiring liquid nitrogen...

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176 CERN Courier, June 1980 Introducing the next stage CAMAC of the most powerful CAMAC Controller System ACC2103/CCA2 2089

ACC 2103 Auxiliary Crate Controller

- 16 bit Texas TM 9900 microcomputer

- 16 K 16 bit RAM directly addressable from CAMAC at 1^s/Word

- up to 8 K EPROM for permanent programs

- TTY and RS 232 C interfaces

- built in LAM Grader

- CAMAC module addressed as memory positions for simple software

- programming in assembly language or high level language

- CAMAC Read/Write cycle less than 10 ^s in autonomous mode

- also compatible with SCC-L2 and Nord 10-PIO Controllers

CCA2 2089 A2 Parallel Crate Controller

- fully conforms to the new EUR 6500 specs

- single board construction

SYSTEM OPERATION

The A2 Crate Controller is a parallel Crate Controller and includes all the same func­ tions plus new control logic for local data handling using a microprocessor module (as ex. ACC 2103). The A2 provides access to the N and L lines via a rear panel connector for the Auxiliary Crate Controller placed in any normal station. It also handles the remote/local access request conflicts. Front-end data processing is governed by the ACC 2103 just as long as the man computer does not require access to this particular crate: However, when this occurs, the local processor is released, its status saved and the Branch Demand processed. Once the Branch Demand has been filled, control returns to the ACC 2103.

Brief configuration guide

- For systems not requiring permanently available high-level languages the ACC 2099 (single width) is normally sufficient.

- to improve input/output and intersystem communication, the SEN CI 2092 communications interface (high speed, multi-channel, buffered, micro-processor controlled) may be added.

- for fully autonomous systems, a version combining the features of the ACC 2103 and of a Crate Controller will be available shortly (Type STACC 2107 - Stand Alone CAMAC Computer).

France: ORTEC Sari; 7, rue des Solets; Tel. (1) 687 2571 - Tlx 202553F, F-94 RUNGIS - Germany I SEN ELEKTRONIK GmbH; Brandstiicken 11; Tel. 041 802046 - Tlx 2163705d, D-2000 HAMBURG 53 - DIDAS Digital System; Radspielstrasse 8 Tel. 089 9167 10 - Tlx 529167d - D-8000 MUNCHEN 81 - Switzerland: SEN ELECTRONIQUE SA; CP 39 Tel. (022) 442940 - Tlx 23359ch - CH-1211 GENEVE 13 - SEN ELEKTRONIK AG; Austrasse 4; Tel. (01) 9455103 Tlx 58257ch - CH-8604 VOLKETSWIL - United Kingdom : SEN ELECTRONICS LTD; London Street; Chertsey; Tel. 9328.66744 - GB - KT168AP SURREY - OFFICES THROUGHOUT THE WORLD. Headquarters: SEN ELECTRONICS S.A.; Avenue Ernest-Pictet 31; Tel. (022) 442940 - Tlx 23359ch - CH-1211 GENEVE 13. ELECTRONIQUE POUR TOUS VOS PROBLEMES DES DISJONCTEURS mnGRini ET DES POSTES PENSEZ A GALILEO MAGRINI GALILEO Via L. Magrini, 7 - 24100 BERGAMO (ITALIA) Telefono/Phone: (035)235.444 - Telegrammi/Cab/e: MAGRINI GALILEO BERGAMO - Telex: 301535 MAGGAL I

^1 £ CAMERA HEAD

INFORMATIONS ABOUT OUR CAMERA CAMERA CRATE

NAME RADIATION RESISTANT VIDEO CAMERA TITLE REF. CERN (CH), SACLAY (FR), ORSAY (FR) COMPANY

CONSTRUCTIONS ADDRESS _ ELECTRONIQUES ET MECANIQUES DU LEMAN - C.E.M.E.L. CITY Rue Leone de Joinville 01 170 GEX FRANCE COUNTRY Tel. (50) 41 50 07

178 CERN Courier, June 1980 POLYRADIAMETER MEASURER MIP10 MCB1

^ \59 FE /

1 99 Tc QO 25 /j/p 203 Hg

• 4 RANGES : 10,100,1 ooo, ioooocs-1 • 5 PROBES: • 3 RANGES : oto 1 ooocs"1 • SMIBM : Soft p from 30 KeV • Battery life : 40 h with batteries or • Battery control • SMIBG : p from 250 KeV • accumulator set • P threshold~30 KeV V from 10 KeV • light : 2,1 kg • Battery life : 100 h • SMIG from 30 KeV • outputs : scaler • light : 0,320 kg • SMIX :Xfrom 5 KeV • printer .•SMIA ^efficiency 40 % (239Pu)

Commercial office : Head office : 17, rue Paul Bert Zl La Vallee du Pare «^ nardeux 92120 MONTROUGE (FRANCE) 37600 LOCHES (FRANCE) Tel. .655.24.29 Tel. : (47) 59.32.32. - Telex : 750 808 F

CERN Courier, June 1980 179 renforce le système d'ordinateurs décentralisé

Un système informatique décentralisé pour Norsk Data est Norsk Data sari,» Le Brévent », Avenue de Jura, 01210 I fondé sur une relation homme-machine, dont l'axiome de Ferney-Voltaire base est que tout besoin de capacité de calcul est local. Nos systèmes d'ordinateurs sont ainsi adaptés aux besoins locaux Oui, je veux en savoir plus sur le système Nord, comme support et outil dans la production, la recherche et de traitement « élargi » des données. l'administration. La possibilité de connecter plusieurs systèmes locaux indé­ Nom_ pendamment de leur emplacement permet la communication entre systèmes et la création de puissants réseaux d'ordina­ Entreprise_ teurs. Les systèmes NORD sont entièrement modulaires. Chaque Adresse_ matériel ou logiciel peut être développé et adapté aux besoins qui évoluent sans que des unités coûteuses deviennent super­ Téléphone_ flues. Nos systèmes s'étendent du mini-ordinateur 16 bits aux I complexe d'ordinateurs 32 bits avec une capacité de mémoire ••••••• virtuelle de 4,3 G-octets pour les données comme pour les •••••••• instructions. Nos dépliants d'information sur le NORD 100, NORD 500, et ••••••••••••••••• sur le traitement décentralisé des données en relèvent les pos­ sibilités et les avantages. Les ordinateurs NORD - élément fondamental d'un traite­ Norsk Data ment efficace des données. Siège « Le Brévent », Avenue du Jura, 01210 Ferney-Voltaire Tél. : (50)408576 Paris : 120 Bureaux de la Colline, 92213 Saint-Cloud Tél. : (1)6023366 NORD - Une alternative à étudier

180 CERN Courier, June 1980 Over 500 years of Swiss time-keeping know-how

— now available in Camac format!

DATE The single Camac width Clock and Calendar module Type 1413 contains a battery-buffered crystal-controlled autonomous clock and electronic calendar offering total immunity to power loss conditions. Time and date can be read via the Camac dataway and visually at the front panel.

This new-generation time keeper enables you to: • Label your system records with the current day, month, year and time accurate to V10 second • Log power failures and alarms • Measure the duration of power failures • Power-down your system without losing your absolute time reference Save all that software overhead normally associated with the real time clock in your computer. borer Photo: The «Red Tower» central time source Borer Electronics AG in the City of Solothurn, Switzerland. Completed in 1411. POSTFACH, CH-4501 SOLOTHURN/SWITZERLAND TEL: 065 • 3111 31, TELEX: 34228

CONTROLE NON DESTRUCTIF garantie de securite et de fiabilite

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CERN Courier, June 1980 181 SILENA

The world's fastest Wilkinson type ADC. The most compact 4096 channels NIM MCA. The most versatile Charge, Amplitude and Time Converter.

1024, 2048, 4096 channels NIM MCA's 2048 channels Charge, 8192 channels 8192 channels ADC, 106 - 1 counts per channel Amplitude and Time ADC, 400 MHZ 100 MHz clock rate X-axis expansion converter CLOCK RATE Roll 0,125 picocoulombs/ 0,3% differen­ Character generator channel; tial non linearity Selection of any number of ROI's •50 picoseconds/channel 0,025% integral Spectra overlap non linearity ROI integration with or without background subtraction Wide range of interfaces for I/O peripheral devices and computers Internal timing Automatic cycles

SILENA SILENA S.P.A. SOCIETA PER L'ELETTRONICA AVANZATA 20133 Milano uffici: Via Negroli, 10/A laboratorio: Via Negroli, 6 Tel. (02) 7490565 - 713871

Sales agents in Benelux, Canada, France, Germany and Great Britain. Stesalit resolves your individual problems in fiberglass and carbon fiber construction — for science and advanced technic.

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• TTL COMPATIBLE OUTPUT • COMPATIBLE WITH ALL NOW... PFR PMT CHAMBERS A CUSTOM CHIP • TWO VERSIONS: ADS-001: 100 KHZ FOR WIRE CHAMBERS^ maximum count rate LeCroy announces the new state-of-the-art for drift ADS-120: 12 MHZ chamber and MWPC amplifier/discriminators. The MVL100 is a single chip containing a wideband amplifier, a maximum count rate discriminator, a monostable, an ECL line driver, and a 50 linear driver. Each section of the device has been designed ADS-001 is without compromising performance. As a result, the MVL100 specifications are unexcelled: compatible with the Sensitivity: ±200 [N typical. Output Jitter <0.1%. Products for Research Slewing: 1.5 nsec typical (2X Input: Differential; double Model CT-100 Digital Counter-Timer. to 20X). diode protected. Output Width: 10 nsec and up. Power Dissipation: Vz watt. Call or write for complete engineering and performance information plus price and delivery. All this performance is available now. Contact your LeCroy representative for complete data on the MVL100. Also available: the Model MVL100-TB Test PRODUCTS FOR RESEARCH, INC. Board as well as the 7790 Sixteen- 88 HOLTEN STREET LsCroy Channel Chamber Card. DAN VERS, MA 01923 • (617) 774-3250 RESEARCH SYSTEMS + Headquarters: 700 S. Main St., Spring Valley, N.Y. 10977. Phone: (914) 425-2000. Offices in: Geneva, Switzerland, Heidelberg, W. Germany; Paris, France; Oxford, England.

CERN Courier, June 1980 183 August 5,1978

EIMAC 8973 tetrode^ Ox > helped bring fusion p a step closer at Princeton.

Project PLT—a significant major research facility involved in the Depart­ ment of Energy's program to develop practical achievement fusion power. The 8973 is a regular production On August 5,1978 scientists at Princeton tube designed for high power switching and University Plasma Physics Laboratory succeeded control by EIMAC division of Varian. in heating a form of hydrogen to more than 60 million degrees Celsius and produced the high­ est temperature ever achieved in a TOKAMAK For information device—four times the temperature of the in­ Contact Varian, EIMAC Division, 301 terior of the sun, thus bringing fusion power a Industrial Way, San Carlos, California 94070. step closer for mankind. Telephone (415) 592-1221. Or any of the more than 30 Varian Electron Device Group Sales EIMAC tetrodes for switching Offices throughout the world. and regulating. Four EIMAC super-power 8973 (X-2170) tetrodes were used to con­ trol and protect the four sensitive neutral beam sources in this scien tific achievement. The next experiment in this series (PDX) will also utilize EIMAC 8973 tetrodes to control the neutral beam sources. The EIMAC 8973 is also being used at Oak Ridge National Laboratory, another