原子能科学技术Issue(1)：46-53,8.DOI:10.7538/yzk.2016.50.01.0046
液闪谱仪对90Sr和90Y的测量方法研究
Study on Determination of 90 Sr and 90 Y by Liquid Scintillation Spectrometry
吴连生 1陈超峰 1张兵 1曾帆 1钦红娟 1沙向东 1上官志洪1
作者信息
- 1. 苏州热工研究院有限公司，江苏 苏州 215004
- 折叠
摘要
Abstract
Efficiency calibrations and quenching calibrations of 90 Sr and 90 Y separated from Sr‐Spec resin by liquid scintillation spectrometry were investigated .The chemical recovery of 90 Y for efficiency calibration was determined . The quenching calibration method and the effects of efficiency calibration ,such as liquid scintillation cocktails , addition of carrier ,drying ,storage time ,chemical quenching were studied .The results show that GoldStar L T 2 is suitable for determinations of 90 Sr and 90 Y .Whether drying of 90 Sr calibration source or not and yttrium carrier addition of 90 Y calibration source or not ,there is no effect on the Cerenkov efficiency calibration .The efficiency calibration of 90 Y should be completed within 10 h after the separation of 90 Sr and 90 Y .90 Sr source should be dried before measurement ,and its efficiency calibration should be completed within 10 h .When the preparation method of sample is as same as efficiency calibration source ,and the SQP (E) value of sample deviates from that of the standard sample within the range of 8.9% ,relative measurement method can be used directly .关键词
液闪谱仪/90Sr/90Y/探测效率/猝灭校正Key words
liquid scintillation spectrometry/90 Sr/90 Y/counting efficiency/quenching calibration分类
化学化工引用本文复制引用
吴连生,陈超峰,张兵,曾帆,钦红娟,沙向东,上官志洪..液闪谱仪对90Sr和90Y的测量方法研究[J].原子能科学技术,2016,(1):46-53,8.
