Studies of light and charge produced by alpha-particles in high-pressure xenon

被引:29
作者
Bolotnikov, A [1 ]
Ramsey, B [1 ]
机构
[1] NASA, George C Marshall Space Flight Ctr, Huntsville, AL 35812 USA
关键词
scintillation light; luminescence signal; high-pressure gas;
D O I
10.1016/S0168-9002(99)00173-4
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
The results of measurements of scintillation light induced by alpha-particles in high-pressure Xe are presented. The ratio of N-ex/N-i, and the intensity and time characteristics of the luminescence signal have been measured for different densities up to 0.74 g/cm(3). The role and mechanisms of the electron-ion recombination in high-pressure gas have been investigated. The existence of clusters and self-trapped excitons above 0.6 g/cm(3) has been observed and discussed. This work is a part of a development program of high-pressure Xe detectors for low-energy gamma rays. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:391 / 402
页数:12
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