A model for RPC detectors operating at high rate

被引:27
作者
Carboni, G [1 ]
Collazuol, G
De Capua, S
Domenici, D
Ganis, G
Messi, R
Passaleva, G
Santovetti, E
Veltri, M
机构
[1] Univ Roma Tor Vergata, Rome, Italy
[2] Ist Nazl Fis Nucl, Sez Roma 2, Rome, Italy
[3] Univ Florence, I-50121 Florence, Italy
[4] Ist Nazl Fis Nucl, Sez Firenze, I-50125 Florence, Italy
[5] Univ Urbino, I-61029 Urbino, Italy
关键词
RPC; detector; current; resistivity; bakelite; high rate;
D O I
10.1016/S0168-9002(02)02082-X
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
We present a simple model to describe the behavior of Resistive Plate Chambers (RPC) exposed to a high particle flux. We show that the RPC current, I, saturates at large flux values and we explain why the dependence of I on the applied voltage V-0 is essentially linear. We show that in the saturated regime the current is controlled by the value of the bulk electrode resitivity, rho, which is directly related to the performance of the detector at high particle rates. Measuring the I - V-0 curve under these conditions offers a simple and direct method to obtain rho and to monitor its possible variations. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:135 / 142
页数:8
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