摘要
讨论了电荷收集时间对梯形成形效果的影响,统计方法及削减电荷收集时间效应的方法。应用实际测得的梯形脉宽来反推电荷收集时间,所得结果与实际情况符合较好。对60Co放射源进行能谱测试,60Co的两个特征峰的能量分辨率分别为1.9 keV和2.0 keV,验证了幅度提取校正对提高系统能量分辨率的效果。
The effect of charge collection time on the trapezoidal shaping effect,statistical methods and methods to reduce the time effect of charge collection are discussed.The relationship between charge collection time and trapezoidal shaping pulse width is found by theoretical derivation.The calculation formula of charge collection time and the method of amplitude extraction correction are given.The actual trapezoidal pulse width was used to reverse the charge collection time,and the results were found to be in good agreement with the actual situation.The energy spectrum of the 60Co source was tested.The energy resolutions of the two characteristic peaks of 60Co were 1.9 keV and 2.0 keV,respectively,which verified the effect of amplitude extraction correction on improving energy resolution.
作者
邓鹤龄
宫辉
DENG He-ling;GONG Hui(Department of Engineering Physics,Tsinghua University,Beijing 100084,China)
出处
《核电子学与探测技术》
CAS
北大核心
2019年第4期457-462,共6页
Nuclear Electronics & Detection Technology
基金
国家自然科学基金(11475094)资助
关键词
高纯锗
数字多道分析器
电荷收集时间
能量分辨率
对称零面积梯形成形
HPGe
digital multi-channel pulse amplitude analysis system
charge collection time
energy resolution
symmetrical zero-area trapezoidal pulse shaper
作者简介
邓鹤龄(1993-),男,湖北孝感人,在读硕士生,攻读方向为数字多道脉冲幅度分析系统研制。
