Measurement of absolute gamma-ray emission probabilities from decay of 138Xe

被引：3
|
作者：
Xie, Feng [1 ]
Jiang, Wengang [1 ]
He, Xiaobing [1 ]
Li, Xuesong [1 ]
Cheng, Zhanyin [1 ]
Wang, Shilian [1 ]
Li, Qi [1 ]
Shi, Quanlin [1 ]
Chang, Yongfu [1 ]
机构：
[1] Northwest Inst Nucl Technol, Xian 710024, Peoples R China
来源：
APPLIED RADIATION AND ISOTOPES | 2013年 / 80卷
关键词：
Xenon-138 and Cesium-138; Gamma-ray emission probabilities; HPGe detector; Decay relationship; Activity; Full-energy peak efficiency; KR-88;
D O I：
10.1016/j.apradiso.2013.06.006
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The fission gaseous Xe-138 products play an important role in the research of nuclear-reaction products and radioisotope applications. Therefore, precise data for emission probabilities of gamma-ray from decay of Xe-138 are highly desired. However, a high precision is not achievable with a sufficient accuracy due to the limitations of the usual experimental techniques. In this paper, after the homogeneous sources of Xe-138-Cs-138 were prepared, the activity of Xe-138 was obtained by the decay relationship between Xe-138 and Cs-138 using a HPGe detector. The full-energy peak efficiencies of gamma-ray for Xe-138 and Cs-138 were accurately calibrated using many activity standard sources and self-absorption was corrected. As a result, the absolute emission probabilities of the 258.4, 434.6 and 1768.3 key gamma-ray from decay of Xe-138 were determined to be 34.9(10)%, 22.2(6)% and 18.8(5)%, respectively. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：56 / 60
页数：5
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