[1]孙慧斌,钟健,刘嘉健,等.电子密度变化对 56Mn半衰期的影响[J].深圳大学学报理工版,2014,31(2):124-129.[doi:10.3724/SP.J.1249.2014.02124]
 Sun Huibin,Zhong Jian,Liu Jiajian,et al.The influence of the change of electron density on the half-life of 56Mn[J].Journal of Shenzhen University Science and Engineering,2014,31(2):124-129.[doi:10.3724/SP.J.1249.2014.02124]
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电子密度变化对 56Mn半衰期的影响()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第31卷
期数:
2014年第2期
页码:
124-129
栏目:
物理
出版日期:
2014-03-20

文章信息/Info

Title:
The influence of the change of electron density on the half-life of 56Mn
文章编号:
20140203
作者:
 孙慧斌钟健刘嘉健罗奇胡世鹏
深圳大学物理科学与技术学院,深圳 518060
Author(s):
Sun Huibin Zhong Jian Liu Jiajian Luo Qi and Hu Shipeng
College of Physics Science and Technology, Shenzhen University, Shenzhen 518060, P.R.China
关键词:
核能谱学衰变常数半衰期化学环境电子密度约化电荷同核异能移核素 56Mn
Keywords:
nuclear spectroscopy decay constant half-life chemical environment electron density reduced charge isomer shift nuclide manganese 56
分类号:
O 571.2;O 571.3
DOI:
10.3724/SP.J.1249.2014.02124
文献标志码:
A
摘要:
利用微型中子源反应堆辐照 55Mn样品,得到放射性核素 56Mn,使用高纯锗探测系统测量 56Mn的能谱,得到 56Mn在不同化合态下的半衰期并进行比较.通过β衰变的费米理论,引入约化电荷计算,对不同化合态下 56Mn的衰变常数与约化电荷进行比对研究.利用同核异能移概念,分析原子价电子的交换和电子云的重叠对 56Mn衰变常数的影响,说明 56Mn半衰期会因为电子密度不同而改变.
Abstract:
The radioactive isotope 56Mn (manganese 56) was produced by activating the 55Mn samples in the miniature neutron source reactor in Shenzhen University. The energy spectrum of 56Mn was detected by the high purity germanium detector system (HPGe system). The half-life of 56Mn in different chemical environments was studied and compared. The reduced charge was calculated by using the Fermi beta-decay theory,then compared with the change of decay constant of 56Mn in different chemical environments. The impact of the valence electron exchange and electron cloud overlap to the decay constant of the 56Mn was analyzed using the theory of the concept of isomer shift.The result is that the half-life of 56Mn is changed due to the variances of electron density.

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相似文献/References:

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备注/Memo

备注/Memo:
Received:2013-06-28;Revised:2014-01-16;Accepted:2014-01-21
Foundation:National Natural Foundation of China (10775098);Foundation of Shenzhen Key Laboratory of Zone Refining High-Purity Germanium
Corresponding author:Professor Sun Huibin.E-mail:hbsun@szu.edu.cn
Citation:Sun Huibin, Zhong Jian,Liu Jiajian,et al.The influence of the change of electron density on the half-life of 56Mn[J]. Journal of Shenzhen University Science and Engineering, 2014, 31(2): 124-129.(in Chinese)
基金项目:国家自然科学基金资助项目(10775098);深圳市高纯锗制造重点实验室基金资助项目
作者简介:孙慧斌(1957-),男(汉族),吉林省临江市人,深圳大学教授、博士生导师.E-mail:hbsun@szu.edu.cn
引文:孙慧斌,钟健,刘嘉健,等.电子密度变化对 56Mn半衰期的影响[J]. 深圳大学学报理工版,2014,31(2):124-129.
更新日期/Last Update: 2014-03-20