Hidex液闪仪α/β甄别及谱图重建方法  

α/βDiscrimination by Hidex Liquid Scintillation Counter and Method for LSC Spectra Reconstruction

作　　者：冯孝贵[1] 袁建华[1] 何千舸[1] 王建晨[1] 陈靖[1] FENG Xiao-gui;YUAN Jian-hua;HE Qian-ge;WANG Jian-chen;CHEN Jing(Institute of Nuclear and New Energy Technology,Tsinghua University,Beijing 100084,China)

机构地区：[1]清华大学核能与新能源技术研究院,北京100084

出　　处：《核化学与放射化学》2023年第2期170-176,I0005,共8页Journal of Nuclear and Radiochemistry

摘　　要：采用液闪技术分析α核素和β核素的混合样品,α/β甄别是一项非常实用的功能。具有α/β甄别功能的液闪仪分为A、B两类。B类液闪仪可以在样品测量后再确定最优甄别参数,该特点给α/β甄别带来了较大的方便。Hidex液闪仪属于B类液闪仪,但针对样品测量后重新设置的甄别参数,配套软件没有给出新的液闪谱图(包括α谱图和β谱图)。本工作分别以^(237)Np液闪样品和铀液闪样品为例,给出了针对新甄别参数重建液闪谱图的方法。结果表明,采用该法重建的液闪谱图与文献一致。The function ofα/βdiscrimination is very useful for analyzing the mixed sample ofαandβnuclides by the technology of liquid scintillation counting(LSC).The liquid scintillation counters with the function ofα/βdiscrimination can be classified as Type A or Type B.Type B counters allow the adjustment of discrimination parameter after the sample measurement,which is a great convenience forα/βdiscrimination.Hidex liquid scintillation counter is one of Type B counters,but no new LSC spectra,including LSC spectra forαradiation and those forβradiation,is given for new discrimination parameter.This paper suggests methods of reconstructing the LSC spectra for any new discrimination parameter with the example of measuring LSC samples of^(237)Np or uranium.The reconstructed LSC spectra are in good agreement with those reported in literature.

关 键 词：液闪 α/β甄别 ^(237)Np 铀 液闪谱图 

分 类 号：TL812.2[核科学技术—核技术及应用]