226Ra irradiation to produce 225Ac and 213Bi in an accelerator-driven system reactor  

作　　者：Amer A.Al Qaaod Volodymyr Gulik 

机构地区：[1]International Centre for Theoretical Physics(ICTP),Trieste,Italy [2]Institute for Safety Problems of NPPs,Kyiv,Ukraine

出　　处：《Nuclear Science and Techniques》2020年第5期12-17,共6页核技术（英文）

基　　金：supported by the International Center for Theoretical Physics and the Institute of International Education’s Scholar Rescue Fund.

摘　　要：This study aims to produce 229Th using an innovative nuclear reactor concept,i.e.,accelerator-driven system(ADS)reactor.Herein,we investigated the feasibility of producing 229Th from neutron transmutation of 226Ra to expand the availability of 225Ac and 213Bi in a simple model of ADS reactor.ADS reactor comprises two zones,i.e.,an inner zone with a fast neutron spectrum and outer zone with thermal neutron spectrum,which is a subcritical core coupled with an external neutron source.Transmutation behavior,activity,and mass ratio of the obtained isotopes were investigated using the Monte-Carlo tool.In addition with offering the capability,flexibility,and safety of radioactive waste transmutation,the proposed ADS model provides high 229Th yield and requires less time than a critical reactor with the same neutron flux and irradiated quantity of 226Ra.

关 键 词：229Th production 226RA IRRADIATION TARGETED alpha therapy ADS REACTOR MONTE Carlo 

分 类 号：R817[医药卫生—影像医学与核医学] TL50[医药卫生—放射医学]