Resourceability on nuclear fuel cycle by transmutation approach

作     者：OZAWA Masaki SAITO Masaki 

作者机构：Research Laboratory for Nuclear ReactorsTokyo Institute of Technology2-12-1-N1-1 OokayamaMeguro-kuTokyo 152-8550Japan 

出 版 物：《Science China Chemistry》 (中国科学（化学英文版）)

年 卷 期：2012年第55卷第9期

页      面：1746-1751页

核心收录：

学科分类：082704[工学-辐射防护及环境保护] 08[工学] 082702[工学-核燃料循环与材料] 0805[工学-材料科学与工程（可授工学、理学学位）] 0827[工学-核科学与技术] 

主　　题：Apres ORIENT Advanced ORIENT cycle nuclear rare metal transmutation nuclear fuel cycle 

摘      要：A resourceability on nuclear fuel cycle by transmutation of fission products in the spent fuel of nuclear reactors is discussed in this paper to investigate the feasibility of ＂creation and utilization＂ of Apr6s ORIENT from Adv.-ORIENT cycle, in which chemical ＂separation and utilization＂ of nuclear rare metals （platinum group metals, Mo, Tc, rare earth, etc.） has been proposed since FY2006. Apr6s ORIENT research program was newly initiated in FY2011 for nuclear transmutation of fission products into stable or short-lived highly-valuable elements. In the resourceability of rare earth metals from fission products, non-radioactive Nd and Dy can be created from Pr and Tb, respectively, by transmutation. Especially, the Dy creation has relatively high feasibility of about 10-20 %/y in creation rate. A proper moderation of neutrons in blanket of fast reactors may be required to provide a high creation rate of La from Ba. In light platinum group metals, non-radioactive Ru can be created from Tc by transmutation, of which creation rate is about 4-5 %/y in blanket of fast reactors. Pd created from Rh is almost non-radioactively depending on the isotope fraction of 107pd. Rh creation from Ru is not feasible under the neutron irradiation of typical nuclear reactors.