A Highly-Segmented Delta-E Time-Of-Flight Wall As Forward Detector Of The 4-Pi-System For Charged-Particles At The Sis Esr Accelerator

A Gobbi,Jp Alard, G Augustinski, Z Basrak, N Bastid,Im Belayev, T Blaich, P Boccaccio, R Bock, S Boussange, A Buta, R Caplar, C Cerruti, Rj Charity, N Cindro,Jp Coffin, M Crouau, F Daudon, Jf Devin,P Dupieux, J Ero, Zg Fan, C Fayard, P Fintz, Z Fodor, L Fraysse, R Freifelder, S Frolov, E Gimenez, Y Grigorian, G Guillaume,N Herrmann,Kd Hildenbrand, S Holbling, F Hornecker, A Houari,Sc Jeong, M Jorio, F Jundt, J Kecskemeti, P Koncz, Y Korchagin, R Kotte,M Kramer, C Kuhn,A Lebedev, I Legrand,Cf Maguire, V Manko, M Marquardt, T Matulewicz, S Mayade, G Mgebrishvili, J Mosner, D Moisa,G Montarou, I Montbel, P Morel, W Neubert, R Neunlist, G Ortlepp, D Pelte, M Petrovici, F Rami,W Reisdorf, Ma Saettel, E Sahuc, G Savinel, Z Seres, D Schull, B Sikora, V Simion, S Smolyankin, U Sodan,Mh Tanaka, Km Teh, R Tezkratt, B Tischler, M Trzaska,Ma Vasiliev, D Vincent, P Wagner, J Weinert,Jp Wessels, T Wienold, Z Wilhelmi, D Wohlfarth, Av Zhilin

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT（1993）

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摘要

At the SIS / ESR accelerator facility at GSI in Darmstadt the 4pi-detector system FOPI is under construction at present. It is designed for the investigation of central collisions of heavy ions in the energy range up to 2 A GeV. As phase I of this detector a forward wall has been built and used in various experiments. It comprizes a total number of 764 scintillators with an additional shell of 188 thin DELTAE-detectors in front of it and covers the full azimuth of the polar angles from 1-degrees- to 30-degrees. The velocity and the nuclear charge of the fragments are determined by a combined time-of-flight and DELTAE measurement.

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