原子能科学技术Issue(6)：961-967,7.DOI:10.7538/yzk.2014.48.06.0961
88Krγ射线发射几率的测量
Measurement of γ-ray Emission Probability of 88 Kr
党云博 1周冬梅 2丁有钱 1孙宏清 1杨志红 1杨磊 1马鹏 1张生栋1
作者信息
- 1. 中国原子能科学研究院 放射化学研究所，北京 102413
- 2. 中国原子能科学研究院 辐射安全研究所，北京 102413
- 折叠
摘要
Abstract
The HPGe detector efficiency calibration of gas source was made by mixing the reference standard source ,and the filling material is lightweight sponge and the small voxel partition method was used . The 88 Kr of radiochemical purity from 235 U fission products was quickly extracted using activated carbon cryogenic absorption method ,and was made into a gas sealed source .The 88 Kr of radiochemical purity was measured by the calibrated HPGe detector . Using the radioactive temporary balance principle ,the 88Kr activity was deduced from the 88Rb activity ,which is the decay daughter of 88 Kr . The absolute branching ratios of 88 Kr were gotten through calculation .Compared with the evaluation value , the uncertainty of data decreases significantly .关键词
88 Kr/γ射线发射几率/效率校准Key words
88 Kr/γ-ray emission probability/efficiency calibration分类
数理科学引用本文复制引用
党云博,周冬梅,丁有钱,孙宏清,杨志红,杨磊,马鹏,张生栋..88Krγ射线发射几率的测量[J].原子能科学技术,2014,(6):961-967,7.
