Evaluation of transmutation rate of some LLFP in experimental fast reactor JOYO
Naima Amrani, Ahmed Boucenna, Ahmed Abdelghafar Galahom
Nuclear Energy and Technology · 2022
doi:10.3897/nucet.8.78428 (opens in a new tab)
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Abstract
A transmutation process of three long-lived fission products (79Se, 99Tc and 107Pd) in the experimental fast reactor JOYO is postulated. The possibility of increasing the transmutation rate utilizing the high neutron flux present in the JOYO reactor by loading neutron-moderating subassemblies in the reflector zone has been investigated. A cluster of reflector subassemblies was replaced with beryllium or zirconium hydride (ZrH1.65) moderated subassemblies. These moderated subassemblies surrounded one central test subassembly that would contain the three long-lived fission products (LLFP) simultaneous and without isotopic separation. ChainSolver 2.34 code is used to calculate the transmutation rates. In this study, the new characteristics of LLFP transmutation in a fast reactor using moderator materials were shown for future applications.
Abstract licence: CC BY
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