用于瞬发γ中子活化在线元素分析的高计数率γ谱仪  

A High Count-Rate Gamma Spectrometer for On-line Element Analysis Using PGNAA

作　　者：孟伯年[1] 

机构地区：[1]北京核仪器厂

出　　处：《核电子学与探测技术》1995年第1期1-12,共12页Nuclear Electronics & Detection Technology

摘　　要：高纯锗探测器制造技术及谱仪电子学的迅速发展，使瞬发γ中子活化分析（ＰＧＮＡＡ）所要求的高计数率γ谱仪已可以由适当地选择谱仪系统中的各个部件而实现。本义针对ＰＧＮＡＡ的应用，就高计数率γ谱仪对各部件指标的要求与选择依据及系统总体考虑进行介绍，并给出系统所能达到的总性能参数。A high resolution HPGe gamma spectrometer desingned for bigh-count-rate operat ion makes PGNAA foron·hi1e element analysis for indIistrlal applications a reality.Unfortunately ,teday 's technology places certainlimitations for each component which consists the system. Certain ctiteria should be applied in selecting dctcc-tor as well as the elect ronlcs used for implementing desired high count-rate performance for the whole spec-troscopy system.Both theoretical analysis and experimental results are given in the paper.(

关 键 词：中子活化分析 数据通过率 堆积 Γ谱仪 在线 

分 类 号：TL817.2[核科学技术—核技术及应用]