RESULTS OF WIRE CHAMBER AGING TESTS WITH CH4- AND DME-BASED GAS-MIXTURES

被引：21

作者：

BOUCLIER, R ^{[1
]}

CAPEANS, M ^{[1
]}

GARABATOS, C ^{[1
]}

HEUER, RD ^{[1
]}

JEANRENAUD, M ^{[1
]}

MEYER, TC ^{[1
]}

SAULI, F ^{[1
]}

SILANDER, K ^{[1
]}

机构：

[1] CERN,CH-1211 GENEVA 23,SWITZERLAND

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1994年 / 346卷 / 1-2期

关键词：

D O I：

10.1016/0168-9002(94)90694-7

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Results are presented of ageing tests performed on single-wire proportional counters under controlled conditions. The rate of the ageing with methane mixtures has been found to be independent of the anode and cathode materials used, and also of the purity of the gas. The rate of ageing for DME mixtures, on the other hand, appears to depend on the amount of gas used: it is small when the DME bottle is full, but increases as the cylinder empties. Addition of some water vapour to the Ar-DME mixture provided good lifetime, independently of the amount in the bottle. An explanation of this observation, based on assumptions on the fractional distillation of impurities, is

引用

页码：114 / 119

页数：6

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