ULTRA-HIGH PRESSURE PROPORTIONAL-COUNTERS .2. XENON

被引：11

作者：

SOOD, RK ^{[1
]}

YE, Z ^{[1
]}

MANCHANDA, RK ^{[1
]}

机构：

[1] TATA INST FUNDAMENTAL RES,BOMBAY 400005,INDIA

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1994年 / 344卷 / 02期

关键词：

D O I：

10.1016/0168-9002(94)90087-6

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Proportional counters filled with xenon-methane mixtures at ultra-high pressures have been tested since the publication of the first part of this paper. These tests have clearly demonstrated the feasibility of using large area high pressure xenon detectors for application in the hard X-ray and low energy gamma ray regions. Our measurements also indicate that the mobility of positive ions changes with gas pressure thereby affecting the gas amplification process and the anode pulse shape in proportional counters. The spatial and energy resolution of counters at high pressures depends not only on the increased fluctuations in the number of primary electrons produced and the statistics of the charge multiplication process, but also on the gas pressure, concentration of quenching gas and the presence of electro-negative impurities.

引用

页码：384 / 393

页数：10

共 15 条

[1]

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[2]

BAZZANO A, 1983, NUCL INSTRUM METHODS, V214, P48

[3]

FERBEL T, 1985, EXPT TECHNIQUES HIGH

[4] MULTI-WIRE PROPORTIONAL CHAMBER FOR NUCLEAR-MEDICINE APPLICATIONS [J].