CTBT气溶胶γ能谱的能量漂移校正方法  

Energy Drift Correction Method for γ Spectrum of CTBT Aerosol Sample

作　　者：张新军 王世联[2] 李奇[2] 贾怀茂[2] 樊元庆[2] 赵允刚[2] 石建芳[2] 侯龙[1] ZHANG Xinjun;WANG Shilian;LI Qi;JIA Huaimao;FAN Yuanqing;ZHAO Yungang;SHI Jianfang;HOU Long(Key Laboratory of Nuclear Data,China Institute of Atomic Energy,Beijing 102413,China;CTBT Beijing National Data Centre and Radionuclide Laboratory,Beijing 100085,China)

机构地区：[1]中国原子能科学研究院核数据重点实验室,北京102413 [2]禁核试北京国家数据中心和北京放射性核素实验室,北京100085

出　　处：《原子能科学技术》2018年第1期145-149,共5页Atomic Energy Science and Technology

摘　　要：CTBT放射性核素台站气溶胶样品通常采用HPGeγ谱仪系统测量,能量刻度是核素识别的关键。针对放射性核素台站气溶胶γ能谱存在的能量漂移问题,提出了一种基于212Pb、212Bi、208Tl、210Pb、40 K和7Be等天然放射性核素γ射线的能量漂移校正方法。测试结果表明,该能量漂移校正方法能有效校正能谱中γ峰能量偏差。Aerosol samples from CTBT radionuclide stations are usually measured by HPGeγray spectroscopy system.Energy calibration is an important part ofγspectrum,which determines the accuracy and reliability of spectrum analysis results.Aiming at the problem on energy drift ofγspectra from CTBT radionuclide stations,an energy drift correction method based onγrays of natural radionuclides 212 Pb,212 Bi,208 Tl,210 Pb,40 K and 7Be was proposed.The test results show that the energy deviation ofγpeaks in spectra is corrected effectively by the energy drift correction method.

关 键 词：全面禁止核试验条约 气溶胶样品 Γ能谱 能量漂移校正 

分 类 号：TL816.4[核科学技术—核技术及应用]