SPACE-CHARGE EFFECT IN SQS TRANSITION IN A GAS COUNTER

被引：3
|
作者：
OHGAKI, H
KAMETANI, H
FUJITA, Y
UOZUMI, Y
IJIRI, H
MATOBA, M
SAKAE, T
KOORI, N
机构：
[1] KYUSHU UNIV,GRAD SCH ENGN SCI,DEPT ENERGY CONVERS ENGN,KASUGA,FUKUOKA 816,JAPAN
[2] KYUSHU UNIV,FAC ENGN,DEPT NUCL ENGN,FUKUOKA 812,JAPAN
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1990年 / 295卷 / 03期
关键词：
D O I：
10.1016/0168-9002(90)90721-H
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
Systematic investigation of the gas multiplication characteristics in the transition region from the proportional to SQS mode in a cylindrical proportional counter has been performed. The property of saturation of the gas multiplication factor can be reproduced using the effective electric field which is corrected for the space charge related to the positive ion density in the avalanche. Photon-mediated gas multiplication can explain the large jump phenomenon of the SQS transition. It is shown that the effective electric field in the avalanche becomes almost zero near the anode surface (Meek's streamer condition) at the 50% transition voltage and the region of its maximum moves slightly away from the anode surface. © 1990.
引用
收藏
页码：411 / 416
页数：6
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