A Novel Digital Pulse-Shape Analysis for High-Resolution Position-Sensitive Gamma-Ray Spectroscopy

被引：6

作者：

Lee, Ju Hahn ^{[1
]}

Jung, Hyo Soon ^{[1
]}

Cho, Hwa Youn ^{[1
]}

Kwon, Young Kwan ^{[1
]}

Lee, Chun Sik ^{[1
]}

机构：

[1] Chung Ang Univ, Dept Phys, Seoul 156756, South Korea

来源：

IEEE TRANSACTIONS ON NUCLEAR SCIENCE | 2010年 / 57卷 / 05期

基金：

新加坡国家研究基金会;

关键词：

Digital pulse-shape analysis (DPSA); high-purity germanium detector; interaction point; position-sensitive gamma-ray spectroscopy; SIGNAL;

D O I：

10.1109/TNS.2010.2053385

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A novel digital pulse-shape analysis (DPSA) was performed for high-resolution position-sensitive gamma-ray spectroscopy with coaxial-type high-purity germanium (HpGe) detectors. The DPSA consisted of two stages that determined the pulse height, the interaction point and the start time by using the chi-square fitting the digitally recorded pulse shapes with calculated shapes. As the DPSA was applied to gamma-ray spectroscopy using HpGe coaxial detectors, we obtained the energy spectra, the time-difference spectra and the interaction depth profiles for the gamma rays emitted from Ba-133 and Na-22 standard sources. The efficiency of the spectroscopic analysis using the DPSA was compared with that using a conventional analog signal process (CASP). Furthermore, we determined the half-lifetime of the first excited state in Cs-133 by using the DPSA.

引用

页码：2631 / 2637

页数：7

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