使用参考源法测定氪的半衰期。
Half-life determination of Kr using the reference source method.
作者信息
Jun Zeng, Youjin Gong, Xiaofeng Guo, Qingpei Xiang, Fanhua Hao, Yongchun Xiang, Changfan Zhang
机构信息
Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, 621900, China.
Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, 621900, China.
出版信息
Appl Radiat Isot. 2019 Oct;152:101-105. doi: 10.1016/j.apradiso.2019.06.033. Epub 2019 Jun 22.
Samples of Kr were produced by (n, 2n) reaction with a DT accelerator, the decay of Kr has been tracked by the reference source method with three High-Purity Germanium (HPGe) detectors. Experimental data were recorded at regular time intervals during measurements covering more than 600 min. The determined half-life of Kr is 71.25 (42) min, which indicated that the most recent values reported in the 1970s and the value recommended by Evaluated Nuclear Structure Data File (ENSDF) may be biased.
氪（Kr）样本通过与氘-氚（DT）加速器的（n，2n）反应产生，氪的衰变通过使用三个高纯锗（HPGe）探测器的参考源法进行追踪。在超过600分钟的测量过程中，按固定时间间隔记录实验数据。所确定的氪的半衰期为71.25（42）分钟，这表明20世纪70年代报告的最新值以及评估核结构数据文件（ENSDF）推荐的值可能存在偏差。
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