Comparison of LWR and SFR in-containment source term: Similarities and differences

Radionuclide transport in a long‐term operation supercritical CO 2 ‐cooled direct‐cycle small nuclear reactor

“…Nevertheless, it is noted that, since the KAIST‐MMR is a fast neutron reactor, it is necessary to take into account the difference between the FP probability distribution when fission occurs with fast or thermal neutron. Previous studies have shown that the FP distribution with fast neutrons and thermal neutrons show different characteristics . The generation ratio of 137 Cs and 134 Cs are almost the same, but 110m Ag is known to produce almost two orders of magnitude larger with fast neutron.…”

“…Previous studies have shown that the FP distribution with fast neutrons and thermal neutrons show different characteristics. 52,53 The generation ratio of 137 Cs and 134 Cs are almost the same, but 110m Ag is known to produce almost two orders of magnitude larger with fast neutron. As a result, the fast neutron produces 110m Ag more than a thermal reactor.…”