[1M13-15] Neutron Application

[1M14] Improvement of Neutron Resonance Densitometry using a Self-indication Method

*Jun-ichi Hori¹, Tadafumi Sano², Yoshiyuki Takahashi¹, Hiroshi Yashima¹, Jaehong Lee¹ (1. Kyoto Univ., 2. Kindai Univ.)

Keywords:Non-destructive Nuclide Assay, Nuclear Material, Resonance Absorption, Self-indication Method

Neutron resonance densitometry with a self-indication method is currently under research to quantify nuclear material in the debris of melted fuel. We performed TOF experiments using U-235 as a self-indicator at the 46-MeV electron linear accelerator in Institute for Integral Radiation and Nuclear Science, Kyoto University (KURNS-LINAC). We observed the correlation between the counting rate and the areal density of target nuclide. Moreover, numerical calculations were also performed by Monte-Carlo simulation code under various situations. Finally, we report the possibility of non-destructive assay using a compact stationary neutron source.