FURTHER-STUDIES OF AVALANCHE MODE-OPERATION OF RESISTIVE PARALLEL-PLATE CHAMBERS

被引:18
作者
CROTTY, I [1 ]
VALVERDE, JL [1 ]
LAURENT, G [1 ]
WILLIAMS, MCS [1 ]
ZICHICHI, A [1 ]
机构
[1] CERN,LAA PROJECT,CH-1211 GENEVA 23,SWITZERLAND
关键词
D O I
10.1016/0168-9002(94)90693-9
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
We have investigated the high rate operation of the resistive plate chamber and have discovered that melamine-phenolic laminates are good candidates for a plate material. We have previously shown that avalanche mode (rather than spark mode) gives a substantial improvement in the rate capability. There are two new encouraging results; the timing spectra are not affected by the rate; and particles at non normal incidence have a higher detection efficiency; these substantially increase the rate capability of this device. However there are two results that show that further R & D is needed. These are: the change in resistivity of the plate material with time; and the fall off of the efficiency with increasing high voltage. Our goal is to produce a cheap large area detector that has good spatial and time resolution and has a raft capability suitable for the muon system at a future collider. We believe that these results show that this detector is already promising and should satisfy these requirements with further R & D.
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页码:107 / 113
页数:7
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