A novel acquisition method for nuclear spectra based on pulse area analysis

A novel simple method based on pulse area analysis （PAA） is presented for acquisition of nuclear spectra by a digitizer. The PAA method can be used as a substitute for the traditional method of pulse height analysis （PHA）. In the PAA method a commercial digitizer was employed to sample and sum in th...

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Bibliographic Details
Published inChinese physics C Vol. 39; no. 4; pp. 63 - 66
Main Author 李东仓 任忠国 杨磊 祁中 孟祥厅 胡碧涛
Format Journal Article
LanguageEnglish
Published 01.04.2015
Subjects
Acquisitions
Counting
Digitization
Marketing
PAA
Pulse height
Simulation
Spectra
Time constant
传统方法
数字化仪
时间常数
核谱
能量分辨率
脉冲采样
获取方法
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ISSN1674-1137
0254-3052
DOI10.1088/1674-1137/39/4/046201

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Summary:A novel simple method based on pulse area analysis （PAA） is presented for acquisition of nuclear spectra by a digitizer. The PAA method can be used as a substitute for the traditional method of pulse height analysis （PHA）. In the PAA method a commercial digitizer was employed to sample and sum in the pulse, and the area of the pulse is proportional to the energy of the detected radiation. The results of simulation and experiment indicate the great advantages of the PAA method, especially as the count rate is high and the shaping time constant is small. When the shaping time constant is 0.5 μs, the energy resolution of PAA is about 66% better than that of PHA.
Bibliography:11-5641/O4
LI Dong-Cang REN Zhong-Guo YANG Lei QI Zhong MENG Xiang-Ting HU Bi-Tao（1 School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China 2 China Academy of Engineering Physics, Mianyang 621907, China）
A novel simple method based on pulse area analysis （PAA） is presented for acquisition of nuclear spectra by a digitizer. The PAA method can be used as a substitute for the traditional method of pulse height analysis （PHA）. In the PAA method a commercial digitizer was employed to sample and sum in the pulse, and the area of the pulse is proportional to the energy of the detected radiation. The results of simulation and experiment indicate the great advantages of the PAA method, especially as the count rate is high and the shaping time constant is small. When the shaping time constant is 0.5 μs, the energy resolution of PAA is about 66% better than that of PHA.
pulse height analysis, pulse area analysis, digitizer, nuclear spectrum
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1674-1137
0254-3052
DOI:10.1088/1674-1137/39/4/046201