[3N01-04] Subcriticality Measurement

10:00 AM - 10:15 AM JST(1:00 AM - 1:15 AM UTC)

[3N03] Investigation of detection efficiency for reactor noise measurements at UTR-KINKI

*Kenichiro Suga¹, Atsushi Sakon¹, Sin-ya Hohara¹ (1. Kindai Univ.)

Keywords:

UTR-KINKI,subcritical,reactor noise,prompt-neutron decay constant,detection efficiency

In this study, we investigated the sensitivity of reactor noise measurement. Specifically, reactor noise measurements based on the Feynman-α method were performed for the shutdown state of the UTR-KINKI reactor, which has an intrinsic neutron source from HEU fuel. The ratio of relative detection efficiencies of detectors installed at different positions within the reactor were determined. Based on the result, we discussed the sensitivity of the reactor noise measurement. On the day of the presentation, we will report on our measurement results and present our discussion in detail.