[2I01-03] Analysis Method of Experiment

[2I02] Development of Measurement Method of Prompt Neutron Decay Constant α using the Dynamic Mode Decomposition

*Fuga Nishioka¹, Tomohiro Endo¹, Akio Yamamoto¹, Masao Yamanaka², Cheol Ho Pyeon² (1. Nagoya Univ., 2. Institute for Integrated Radiation and Nuclear Science, Kyoto University)

Keywords:prompt neutron decay constant α, Dynamic Mode Decomposition, fundamental mode, subcriticality measurement, pulsed neutron source method

To measure the prompt neutron decay constant α corresponding to the fundamental mode, we try applying the Dynamic Mode Decomposition (DMD) to the time-series data of neutron counts obtained by the pulsed neutron source method. In this study, the effectiveness of the proposed method will be presented by analyzing the pulsed neutron source experiment carried out at the Kyoto University Critical Assembly (KUCA).