^(59)Fe的活度测量及国际比对  

Absolute Measurement of ^(59)Fe and International Comparison

作　　者：汪建清[1] 陈细林[1] 贾雪文[1] 杨巧玲[1] 

机构地区：[1]中国原子能科学研究院放射性计量测试部,北京102413

出　　处：《原子能科学技术》2000年第2期173-178,共6页Atomic Energy Science and Technology

摘　　要：为提高放射性计量水平 ,加强国际合作 ,用日本电子技术综合研究所 (ETL)送国际计量局(BIPM)的国际参考系统 (SIR)比对测量的同一批59Fe放射性标准溶液 ,刻度了 4πγ高气压电离室 ,并用 4πβ γ符合方法进行了绝对测量 ,测量结果与各家实验室的结果进行了比对 ,与日本ETL的结果和SIR平均值分别在 - 0 2 7%和 - 0 15A sample of 59 Fe solution for international comparison was measured in our laboratory by 4πγ pressured ionization chamber and 4πβ γ coincidence apparatus as well, and a similar 59 Fe solution in a NIST/SIR ampoule was send to BIPM to be measured by the International Reference System for activity measurements of gamma ray emitting nuclides(SIR) by ETL. The result is in a good agreement with the one measured by ETL, and both results are very near to SIR mean value.

关 键 词：比活度 活度测量 铁59 放射性计量 国际比对 

分 类 号：O614.811[理学—无机化学] TL84[理学—化学]