Accelerator driven sub-critical systems with enhanced neutron multiplication |
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| Affiliation: | 1. Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan;2. National Institute of Advanced Industrial Science and Technology(AIST),16-1 Onogawa, Tsukuba, Ibaraki 305-8569, Japan;1. Institute for Integrated Radiation and Nuclear Science, Kyoto University, 2 Asashiro-Nishi, Kumatori-cho, Sennan-gun, Osaka, 590-0494, Japan;2. Radiation Dose Analysis and Evaluation Network, 4-13-14, Kokubunji-shi, Tokyo, 185-0001, Japan;1. Key Laboratory of Ministry of Education, School of Materials Science and Engineering, Beijing University of Technology, Chaoyang District, Beijing, 100124, China;2. School of Materials Science and Engineering, Beihang University, Haidian District, Beijing, 100191, China;3. Center for Integrated Computational Materials Engineering, International Research Institute for Multidisciplinary Science, Beihang University, Haidian District, Beijing, 100191, China |
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| Abstract: | Utilisation of thorium, by way of the U-Th cycle, is of particular interest to the Indian Nuclear Power Programme because of large thorium deposits and limited Uranium reserves. Several schemes, such as fast and advanced heavy water reactors, leading to thorium utilisation, are under study at this centre. The present paper discusses a scheme for evolving a practical accelerator driven sub-critical U-Th system with increased neutron multiplication and consequentually a reduced requirement of the accelerator current. It is shown that the requirement of the accelerator current is considerably reduced if a sub-critical assembly with a given Keff is composed of two partially coupled regions. |
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