Transmutation of nuclear wastes using photonuclear reactions triggered by Compton backscattering photons at the Shanghai laser electron gamma source  

作　　者：陈金根 徐望 王宏伟 郭威 马余刚 蔡翔舟 陆广成 徐毅 潘强岩 袁仁勇 徐加强 阎喆 范功涛 沈文庆 

机构地区：[1]Shanghai Institute of Applied Physics, CAS

出　　处：《Chinese Physics C》2008年第8期677-680,共4页中国物理C（英文版）

基　　金：Knowledge Innovation Project of Chinese Academy of Sciences (KJCX2-SW-N13);China Postdoctoral ScienceFoundation, National Natural Science Foundation of China (10475108, 10605036, 10405032);One Hundred Person Project of SINAP;Shanghai Development Foundation for Science and Technology (06QA14062)

摘　　要：Based on the facility of the Shanghai Laser Electron Gamma Source （SLEGS）, the transmutation for nuclear wastes such as 137^Cs and 129^I is investigated. It is found that nuclear waste can be transmuted efficiently via photonuclear reaction triggered by gamma photons generated from Compton backscattering between CO2 laser photons and 3.5 GeV electrons. The nuclear activities of 137^Cs and 129^I are evaluated and compared with the results of transmutation triggered by bremsstrahlung gamma photons driven by ultra intense laser. Due to the better character of gamma photon spectrum as well as the high brightness of gamma photons, the transmutation rate of Compton backscattering method is much higher than that of the bremsstrahlung method.Based on the facility of the Shanghai Laser Electron Gamma Source （SLEGS）, the transmutation for nuclear wastes such as 137^Cs and 129^I is investigated. It is found that nuclear waste can be transmuted efficiently via photonuclear reaction triggered by gamma photons generated from Compton backscattering between CO2 laser photons and 3.5 GeV electrons. The nuclear activities of 137^Cs and 129^I are evaluated and compared with the results of transmutation triggered by bremsstrahlung gamma photons driven by ultra intense laser. Due to the better character of gamma photon spectrum as well as the high brightness of gamma photons, the transmutation rate of Compton backscattering method is much higher than that of the bremsstrahlung method.

关 键 词：radioactive wastes photonuclear reactions Compton backscattering 

分 类 号：TL94[核科学技术—辐射防护及环境保护]