[1M05-07] Uncertainty Evaluation 2

[1M06] An Influence of Choice of Delayed Neutron Models on Inverse Kinetics Analysis

*Kazuki Takahashi¹, Kunihiro Nakajima¹, Atsushi Sakon², Sin-ya Hohara², Kengo Hashimoto² (1. Graduate School of Science and engineering, Kindai University, 2. Atomic Energy Research Institute, Kindai University)

Keywords:Delayed Neutron Model, Inverse Kinetics Analysis

An Influence of Choice of Delayed Neutron Models on Inverse Kinetics Analysis was investigated. As delayed neutron model, 6-group model mode by Keepin, 8-group model recommended by Spriggs and 8-group model by Wilson were employed. Inverse Kinetics Analysis was applied to various time-sequence data sets acquired in the UTR-Kinki. No difference of the reactivity between the Keepin and the Spriggs Models can be observed. However, the difference between the Keepin and the Wilson models was larger than 10 %.