A new concept for streamer quenching in resistive plate chambers

被引：7
|
作者：
Calcaterra, A.
de Sangro, R.
Mannocchi, G.
Patteri, P.
Picchi, P.
Piccolo, M.
Redaelli, N.
Tabarelli de Fatis, T.
Trinchero, G. C.
机构：
[1] Univ Milano Bicocca, Sez Milano, I-20126 Milan, Italy
[2] Ist Nazl Fis Nucl, Sez Milano, I-20126 Milan, Italy
[3] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, RM, Italy
[4] Ist Nazl Astrofis, IFSI Sez Torino, I-10133 Turin, Italy
[5] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2006年 / 565卷 / 02期
关键词：
RPC; streamer mode; Freon-less; mechanical quenching;
D O I：
10.1016/j.nima.2006.02.162
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
In this paper we propose a new concept for streamer quenching in Resistive Plate Chambers (RPCs). In our approach, the multiplication process is quenched by the appropriate design of a mechanical structure inserted between the two resistive electrodes. We show that stable performance is achieved with binary gas mixtures based on argon and a small fraction of isobutane. Fluorocarbons, deemed responsible for the degradation of the electrode inner surface of RPC detectors, are thus fully eliminated from the gas mixture. This design also resulted in a simplified assembly procedure. Preliminary results obtained with a few prototypes of "Mechanically Quenched RPCs" and some prospects for future developments are discussed. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：444 / 449
页数：6
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