A compact positron annihilation lifetime spectrometer

被引：0

作者：

李道武 ^{[1
,2
]}

刘军辉 ^{[1
,2
]}

章志明 ^{[1
]}

王宝义 ^{[1
]}

张天保 ^{[1
]}

魏龙 ^{[1
]}

机构：

[1] Key-Laboratory of Nuclear Analysis Techniques,Institute of High Energy Physics,Chinese Academy of Sciences

[2] Graduate University of Chinese Academy of Sciences

来源：

中国物理C | 2011年 / 01期

关键词：

compact; PLS; LYSO; positron annihilation;

D O I：

暂无

中图分类号：

TL816.2 [];

学科分类号：

摘要：

Using LYSO scintillator coupled on HAMAMATSU R9800(a fast photomultiplier) to form the small size γ-ray detectors,a compact lifetime spectrometer has been built for the positron annihilation experiments.The system time resolution FWHM=193 ps and the coincidence counting rate ～8 cps/μCi were achieved.A lifetime value of 219±1 ps of positron annihilation in well annealed Si was tested,which is in agreement with the typical values published in the previous lectures.

引用

页码：100 / 103

页数：4

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