用单能γ射线源校刻β塑料闪烁体能谱仪  

The Calibration of β-Scintillation Energy Spectrometer Using Monoenergetic γ-Rays.

作　　者：潘强岩[1] 徐树威[1] 袁双贵[1] 张学谦[1] 

机构地区：[1]中国科学院近代物理研究所,兰州730000

出　　处：《高能物理与核物理》1993年第5期391-395,共5页High Energy Physics and Nuclear Physics

摘　　要：本文介绍了一种简单、方便而又能精确刻度β塑料闪烁体能谱仪的实用方法.实验使用了^(22)Na、^(137)Cs、^(54)Mn和^(207)Bi等4个γ标准源对β塑料闪烁体能谱仪进行了精确的能量刻度,选取了β能谱仪对单能γ射线响应的康普顿能谱后缘的半高点作为能量参照点.并根据此结果分析处理了^(90)Sr-^(90)Y源的β能谱,其端点能量为2.298±0.90MeV.In this paper, a simple, convenient, precise and practical method for the calibration of β-scintillation energy spectrometer is introduced. The β-scintillation energy spectrometer is calibrated precisely by using four sources of ^(22)Na,^(137)Cs, ^(54)Mn and ^(207)Bi. The half high points of the response curve of the spectrometer on the right hand side of the Comption peaks are chosen as the energy calibration points. According to this calibration result, the β-energy spectrum of ^(90)Sr-^(90)Y source is analysed. Its end-point energy is 2.298±0.090 MeV.

关 键 词：Β谱仪 校刻 闪烁体 X射线 

分 类 号：TL817.2[核科学技术—核技术及应用]