First nuclear transmutation of 237Np and 241Am by accelerator-driven system at Kyoto University Critical Assembly
JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY(2019)
摘要
This study demonstrates, for the first time, the principle of nuclear transmutation of minor actinide (MA) by the accelerator-driven system (ADS) through the injection of high-energy neutrons into the subcritical core at the Kyoto University Critical Assembly. The main objective of the experiments is to confirm fission reactions of neptunium-237 (Np-237) and americium-241 (Am-241), and capture reactions of Np-237. Subcritical irradiation of Np-237 and Am-241 foils is conducted in a hard spectrum core with the use of the back-to-back fission chamber that obtains simultaneously two signals from specially installed test (Np-237 or Am-241) and reference (uranium-235) foils. The first nuclear transmutation of Np-237 and Am-241 by ADS soundly implemented by combining the subcritical core and the 100 MeV proton accelerator, and the use of a lead-bismuth target, is conclusively demonstrated through the experimental results of fission and capture reaction events.
更多查看译文
关键词
KUCA,ADS,nuclear transmutation,Np-237,Am-241,100 MeV protons,Pb-Bi target
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要