A GAS CHERENKOV BEAM COUNTER WITH A TIMING RESOLUTION OF 30 PS FOR RELATIVISTIC HEAVY-ION EXPERIMENTS

Citation
T. Chujo et al., A GAS CHERENKOV BEAM COUNTER WITH A TIMING RESOLUTION OF 30 PS FOR RELATIVISTIC HEAVY-ION EXPERIMENTS, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 383(2-3), 1996, pp. 409-412
Citations number
2
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
ISSN journal
01689002
Volume
383
Issue
2-3
Year of publication
1996
Pages
409 - 412
Database
ISI
SICI code
0168-9002(1996)383:2-3<409:AGCBCW>2.0.ZU;2-K
Abstract
We constructed gas a Cherenkov beam counter for a lead beam to obtain start signals of time of fight measurements for relativistic heavy ion experiments in WA98 at CERN-SPS. The intrinsic timing resolution of t he gas Cherenkov counter was found to be less than or equal to 30 ps a t a beam intensity up to 3 x 10(5) ions/s and the charge resolution (D elta Z/Z) was 2.0% for lead ions of 160 GeV/c per nucleon. This counte r has been successfully operated for more than 11/2 month of heavy ion run in 1995.