A SYSTEMATIC STUDY OF PRIMARY IONIZATION CLUSTER COUNTING AT LOW GAS-PRESSURES

被引：16
|
作者：
MALAMUD, G
BRESKIN, A
CHECHIK, R
机构：
[1] Nuclear Physics Department, The Weizmann Institute of Science
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1991年 / 307卷 / 01期
关键词：
D O I：
10.1016/0168-9002(91)90134-C
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
A systematic study of primary ionization cluster counting (PCC) at low gas pressures is presented with potential application to relativistic charged particle identification and to soft X-ray spectroscopy. The method is based on the amplification and counting of electron clusters, deposited in a low-pressure gas medium, with a multistep avalanche electron multiplier. Systematic ionization density measurements were performed with relativistic electrons and a UV laser. Various processes involved in the electron transport at low reduced electric fields were studied, such as cluster dissociation, cluster overlap and electron attachment or recombination. The impact of these processes on the statistical distribution of the number of counted clusters was investigated. The experimental results are compared with detailed Monte Carlo simulations.
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页码：83 / 96
页数：14
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