Low energy background in mercuric iodide X-ray spectrometers

被引：1
|
作者：
Bao, XJ
Natarajan, M
Henderson, J
机构：
[1] Dept. of Analytical Instruments, TN Technologies, Inc., Round Rock, TX 78680
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 1996年 / 380卷 / 1-2期
关键词：
D O I：
10.1016/S0168-9002(96)00328-2
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
The origins of the continuous background (window effect or dead layer) in mercuric iodide X-ray spectrometers are investigated. It is found that photo-electron escape and carrier diffusion are the dominant mechanisms of incomplete charge collection in the energy range of interest (from 3-60 keV). X-ray spectra measurements, computer calculation and photo-response measurements are presented in support of the proposed model. Many observations of detector behavior made in the manufacturing and application of mercuric iodide X-ray detectors can be explained by this model.
引用
收藏
页码：58 / 61
页数：4
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