摘要
为了获得低放废物处置过程中重点关注放射性核素的活度浓度信息,选择TRU树脂作为分离纯化材料,结合液闪测量法,建立了废树脂样品中^55 Fe的快速分析方法。该方法Fe的化学回收率为87.23%,最小可探测比活度为11.43 mBq/g。
In order to obtain the radioactivity concentration information of the nuclides in the process of disposal of low level waste,an analytical method for the determination of ^55 Fe in spent ion-exchange resin was established by using TRU resin as the separation and purification material and liquid scintillation spectrometry method.The chemical recovery of Fe for this method is approximately 87.23%,and the minimum detectable specific activity is approximately 11.43 mBq/g.
作者
徐琛
姜涛
龙浩骑
蒋婧
刘新华
赵立飞
赵永刚
XU Chen;JIANG Tao;LONG Hao-qi;JIANG Jing;LIU Xin-hua;ZHAO Li-fei;ZHAO Yong-gang(China Institute of Atomic Energy,P.O.Box 275(88),Beijing 102413,China;Nuclear and Radiation Safety Center,Ministry of Ecology and Environment of the People’s Republic of China,Beijing 100082,China)
出处
《核化学与放射化学》
CAS
CSCD
北大核心
2020年第2期116-120,共5页
Journal of Nuclear and Radiochemistry
基金
国家科技重大专项资助项目(2018ZX06002005)。
关键词
废树脂
^55
FE
TRU树脂
液闪测量
spent ion-exchange resin
^55 Fe
TRU resin
liquid scintillation spectrometry
