[2M06-09] Subcriticality Experiment and Evaluation 2

[2M06] A Study of Gate-Time Range Dependence of Feynman-α Analysis

*Kengo Hashimoto¹, Kunihiro Nakajima², Kazuki Takahashi², Atsushi Sakon¹, Sin-ya Hohara¹ (1. Atomic Energy Research Institute, Kindai University, 2. Graduate School of Science and Engineering, Kindai University)

Keywords:Feynman-α, Neutron Correlation Analysis, Subcriticality, Gate Time

Even at deeply subcritical state such as a shutdown state, the prompt-neutron decay constant and the saturated correlation amplitude obtained by Feynman-α analysis for time-sequence data with a statistically high quality are significantly dependent on a gate-time range set for the analysis. Considering a delayed-neutron contribution approximately, this difficulty could be solved