Design and optimization of an analog filter with a CdTe detector for X-ray fluorescence applications

被引：2

作者：

Choi, Hyojeong ^{[1
]}

Kim, Hui Su ^{[1
]}

Kim, Young Soo ^{[2
]}

Ha, Jang Ho ^{[2
]}

Chai, Jong-Seo ^{[3
]}

机构：

[1] Sungkyunkwan Univ, WCU Dept Energy Sci, Suwon 16419, South Korea

[2] Korea Atom Energy Res Inst, Jeongeup 56212, South Korea

[3] Sungkyunkwan Univ, Coll Informat & Commun Engn, Suwon 16419, South Korea

来源：

JOURNAL OF THE KOREAN PHYSICAL SOCIETY | 2016年 / 69卷 / 07期

基金：

新加坡国家研究基金会;

关键词：

X-ray fluorescence; Analog shaping amplifier; CdTe; CDZNTE DETECTORS; SPECTROSCOPY; PERFORMANCE;

D O I：

10.3938/jkps.69.1157

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

An analog pre-filter circuit for digital pulse processing is designed and optimized for X-ray fluorescence (XRF) applications to replace traditional analog shaping amplifiers. To optimize the pre-filter performance, we characterized noise electrons as a function of the input pulse rise time and decay time of the output pulse by using the full width at half maximum. In addition, gamma-ray energy measurements at room temperature showed that the commercially available CdTe Schottky-type radiation detector with our newly designed and optimized pre-filter circuit exhibited full widths at half maxima of 4.97 (Ba-133, at 53 keV) and 5.56 keV (Am-241, at 59.5 keV), respectively.

引用

页码：1157 / 1162

页数：6

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