Pulse Shape Analysis on Mixed Beta Particle and Gamma-ray Source Measured by CdZnTe Semiconductor Detector by means of Digital-Analog Hybrid Signal Processing Method
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概要
- 論文の詳細を見る
We present a study on pulse shapes of a CdZnTe semiconductor detector for beta particles and gamma-rays emitted by a 137Cs-90Sr mixed source. When beta and gamma radiations enter a semiconductor detector, two kinds of pulses are produced according to the type of radiations. The characteristics of the pulses are determined by their energy and depth of interaction. The energy deposited on the detector basically determines the pulse height and the depth of interaction affects the pulse shape. Because of the different characteristics of beta and gamma radiations, their pulse shapes are also different. The digital-analog hybrid signal processing method was applied to separation of the beta spectrum from the beta-gamma mixed one. The separation of beta spectrum was done based on a neural network algorithm, a leading edge area method, and a falling continuum tail value method. However, the perfect separation could not be obtained. The separation was also done by reconstructing the spectra on the basis of subtraction of gamma-ray component. The spectra of beta particles and gamma-rays from 137Cs-90Sr mixed source could be separated well by using the reconstruction method.
- 社団法人 日本原子力学会の論文
- 2001-05-25
著者
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KAWARABAYASHI Jun
Department of Quantum Engineering, Graduate School of Engineering, Nagoya University
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IGUCHI Tetsuo
Department of Quantum Engineering, Graduate School of Engineering, Nagoya University
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URITANI Akira
Graduate School of Engineering, Nagoya University
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酒井 宏隆
(株)東芝 電力システム社
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URITANI Akira
Department of Nuclear Engineering, School of Engineering, Nagoya University
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Iguchi T
Graduate School Of Engineering Nagoya University
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Iguchi Tetsuo
Department Of Nuclear Engineering Faculty Of Engineering The University Of Tokyo
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Kawarabayashi Jun
Nagoya University
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Uritani A
Nagoya Univ.
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Uritani Akira
Department Of Nuclear Engineering Graduate School Of Engineering Nagoya University
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Uritani Akira
Department Of Nuclear Engineering Nagoya University
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MANGUN PANITRA
Department of Nuclear Engineering, Graduate School of Engineering, Nagoya University
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SAKAI Hirotaka
Toshiba Corporation
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Mangun Panitra
Department Of Nuclear Engineering Graduate School Of Engineering Nagoya University
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IGUCHI Tetsuo
Physics and Energy Engineering, Graduate School of Engineering, Nagoya University
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Iguchi Tetsuo
Department Of Quantum Engineering Nagoya University
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Uritani Akira
Department of Materials, Physics and Energy Engineering, Graduate School of Engineering, Nagoya University, Nagoya 464-8601, Japan
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