[1I07-10] Reactor Noise Measurement & Analysis

[1I10] Application of Dynamic Mode Decomposition to Reactor Noise Analysis Method

(2)Statistical Uncertainty Quantification Using Bootstrap Method

*Tomohiro Endo¹, Fuga Nishioka¹, Akio Yamamoto¹, Kenichi Watanabe², Cheol Ho Pyeon³ (1. Nagoya Univ., 2. Kyushu Univ., 3. Kyoto Univ.)

Keywords:reactor noise analysis method, dynamic mode decomposition, prompt neutron decay constant, uncertainty quantification, bootstrap method

As the neutron count rates and/or the total measurement time of the reactor noise increases, the total number of detection data becomes huge. Thereby, it is difficult to straightforwardly apply the reactor noise analysis method to all of the detection data. Furthermore, the statistical uncertainty quantification for such a reactor noise analysis is a challenging issue. To address this issue, we investigate the practical method for the Rossi-α method with dynamic mode decomposition to estimate the statistical uncertainty using the bootstrap method, where many resamples are virtually generated from divided binary files of detection data.