摘要
描述了参加2006年度全面禁止核试验条约(CTBT)筹委会临时技术秘书处(PTS)组织进行的国际放射性核素实验室间的滤材样品比对测量的全过程。使用相对效率为76%的HPGeγ谱仪系统测量和分析了比对样品,准确识别和计算了参考样品中的11种放射性核素的活度和活度浓度,利用95Nb与95Zr活度比推算的样品零时与参考值相差仅0.57 d。
The paper describes the whole progress of 2006 proficiency test exercise organized by the Comprehensive Nuclear-Test-Ban Treaty organization （CTBTO）. The atmospheric particle filter samples were measured by HPGe detector （relative detective efficiency is 76 %）, all the major radio-nuclides in reference sample were identified, and their activities and activity concentrations were calculated accurately. The zero time determined by the ^95Nb and ^95 Zr activity ratio is in agreement with the reference value, the deviation is only 0.57 days.
出处
《原子能科学技术》
EI
CAS
CSCD
北大核心
2008年第B09期307-312,共6页
Atomic Energy Science and Technology
关键词
全面禁止核试验条约
滤材样品
活度
活度浓度
零时
Comprehensive Nuclear-Test-Ban Treaty
filter sample
activity
activity concentration
zero time
