摘要
^(63)Ni作为低能β放射源是重要的工业用同位素,具有半衰期长、能量密度适中、制造方便等优点。本研究对高通量堆辐照生产高比活度^(63)Ni的特性进行研究,分析影响^(63)Ni比活度的因素,包括中子通量、能谱分布、辐照靶件设计等。在此基础上,对进一步提高^(63)Ni比活度的辐照方案设计思路进行探讨。研究表明,超高通量堆有利于获得高比活度^(63)Ni同位素。本研究成果可为^(63)Ni辐照生产方案设计提供参考。
^(63)Ni is an important industrial radioisotope,which has the characteristics of long half-life,moderate power density and easy to manufacture.^(63)Ni is a promisingβradiation source with low energy.The characteristics of irradiation production of ^(63)Ni with high specific activity in high flux reactor are studied,and the influence of neutron flux,neutron energy spectrum,irradiation target design scheme on the specific radioactivity are analyzed.On this basis,the ideas of irradiation scheme design for further improving the specific activity of ^(63)Ni are discussed.The research shows that ultra-high flux reactor helps to improve the specific activity of ^(63)Ni.The results provide references for the irradiation production scheme design of ^(63)Ni.
作者
李健
赵晶
刘志宏
徐伟
解衡
石磊
LI Jian;ZHAO Jing;LIU Zhihong;XU Wei;XIE Heng;SHI Lei(Institute of Nuclear and New Energy Technology,Tsinghua University,Beijing 100084,China;School of Nuclear Science and Engineering,North China Electric Power University,Beijing 102206,China)
出处
《同位素》
CAS
2024年第6期575-579,共5页
Journal of Isotopes
基金
北京市科协青年人才托举工程项目(No.BYESS2023083)
中核集团青年英才项目。
关键词
^(63)Ni
高通量堆
辐照生产
比活度
方案设计
^(63)Ni
high flux reactor
irradiation production
specific activity
scheme design
