<sup>155</sup>Eu衰变γ射线发射几率的精确测量

李广生; 彭朝华; 李大明; 陈细林; 杨毅; 鲍杰; 杨志红; 张生栋; 崔安智

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¹⁵⁵Eu衰变γ射线发射几率的精确测量

更新时间：2021-03-12

- ¹⁵⁵Eu衰变γ射线发射几率的精确测量
- Precise measurements of emission probabilities for y-rays from Eu decay
- 核技术 2003年第9期
- 作者机构：
  
  1. 中国原子能科学研究院
  2. 中国原子能科学研究院,北京,102413
- 作者简介：
- 基金信息：
- DOI：
  中图分类号： O571.3
- 纸质出版日期：2003-09-01
- 稿件说明：
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[1]李广生,彭朝华,李大明,陈细林,杨毅,鲍杰,杨志红,张生栋,崔安智.~(155)Eu衰变γ射线发射几率的精确测量[J].核技术,2003(09):683-685.

LI Guangsheng PENG Zhaohua LI Darning CHEN Xilin YANG Yi BAO Jie YANG Zhihong ZHANG Shengdong CUI Anzhi. Precise measurements of emission probabilities for y-rays from Eu decay[J]. Nuclear techniques, 2003, (9): 683-685.
[1]李广生,彭朝华,李大明,陈细林,杨毅,鲍杰,杨志红,张生栋,崔安智.~(155)Eu衰变γ射线发射几率的精确测量[J].核技术,2003(09):683-685. DOI：

LI Guangsheng PENG Zhaohua LI Darning CHEN Xilin YANG Yi BAO Jie YANG Zhihong ZHANG Shengdong CUI Anzhi. Precise measurements of emission probabilities for y-rays from Eu decay[J]. Nuclear techniques, 2003, (9): 683-685. DOI：

摘要

经堆中子辐照过的

154

Sm样品

用阳离子交换法分离纯化

得到

155

Eu核素。用4πβ-γ符合法测量放射性活度和用小平面Ge探测器测量

155

Eu衰变发射的γ光子数

精确测定了γ射线的发射几率。对于强γ射线和弱γ射线的不确定度分别为1.7％和4.5％。与文献报道值相比较

本测量结果明显改善。

Abstract

Nuclide 155Eu was separated and purified from the 154Sm sample irradiated by the reactor neutrons by using the cation exchange technique. Activities were measured by the 4πβ-γcoincidence method and the γ-ray spectra of 155Eu decay were measured with a small-area planar Ge detector. Emission probabilities of the y-rays were precisely determined

with uncertainties of 1.7% and 4.5% for the strong and weaker y-rays

respectively. The present results have been considerably improved in comparison with previously reported values.

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155Eu衰变γ射线发射几率的精确测量

Precise measurements of emission probabilities for y-rays from Eu decay

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¹⁵⁵Eu衰变γ射线发射几率的精确测量