A 10 MHZ BEAM COUNTER AND A MULTIPLICITY DETECTOR FOR THE E864 SPECTROMETER

Authors
HARIDAS P PLESS IA VANBUREN G TOMASI J RABIN MSZ BARISH K MAJKA RD
Citation
P. Haridas et al., A 10 MHZ BEAM COUNTER AND A MULTIPLICITY DETECTOR FOR THE E864 SPECTROMETER, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 385(3), 1997, pp. 412-418
Citations number
4
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
Journal title
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment → ACNP
ISSN journal
01689002
Volume
385
Issue
3
Year of publication
1997
Pages
412 - 418
Database
ISI
SICI code
0168-9002(1997)385:3<412:A1MBCA>2.0.ZU;2-A
Abstract
The E864 experiment at BNL requires a beam counter and multiplicity de tector system that can perform at an incident beam rate of 10(7) Au io ns per second. We have developed and tested a 150 mu m thick quartz Ch erenkov beam counter and a scintillator based multiplicity-trigger cou nter during the first run of this experiment in 1994. We obtained a ti me resolution of 78 ps for the beam counter at an incident beam rate 5 x 10(5) Hz and 100 ps at a rate of 1 x 10(7) Hz, Pulse height discrim ination is used to obtain a minimum bias and a 10% centrality trigger from the multiplicity detectors. The multiplicity counter has a time r esolution of 250 ps.