EXPERIMENTAL-DETERMINATION OF IONIZATION CLUSTER SIZE DISTRIBUTIONS IN COUNTING GASES

被引：36

作者：

FISCHLE, H ^{[1
]}

HEINTZE, J ^{[1
]}

SCHMIDT, B ^{[1
]}

机构：

[1] UNIV HEIDELBERG, INST PHYS, W-6900 HEIDELBERG, GERMANY

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1991年 / 301卷 / 02期

关键词：

D O I：

10.1016/0168-9002(91)90460-8

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The distribution of the number of electrons contained in the ionization clusters formed along the track of minimum ionizing particles has been determined experimentally. Results are presented for argon, helium, methane, ethane, propane, isobutane and carbon dioxide, i.e., for gases which are commonly used as counting gases in drift chambers. The probabilities w(n) for the formation of a cluster containing n electrons were found to be monotonically decreasing for increasing n. Typical values for w(1) are 0.66 (Ar), 0.77 (He), and 0.79 (CH4). The results are compared with model predictions.

引用

页码：202 / 214

页数：13

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