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
收藏
页码：2631 / 2637
页数：7
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