Recent progress in research and development in neutron resonance densitometry (NRD) for quantification of nuclear materials in particle-like debris

Koizumi, Mitsuo ; Kitatani, Fumito  ; Tsuchiya, Harufumi ; Harada, Hideo   ; Takamine, Jun ; Kureta, Masatoshi   ; Iimura, Hideki  ; Seya, Michio; Becker, B.*; Kopecky, S.*; Mondelaers, W.*; Schillebeeckx, P.*

Neutron Resonance Densitometry (NRD) has been proposed for quantification of nuclear materials in melted fuel. NRD is a combined TOF technique of Neutron Resonance Transmission Analysis (NRTA) and Neutron Resonance Capture Analysis (NRCA) or Prompt Gamma ray Analysis (PGA). To establish the method, development of detectors is in progress. Experiments were carried out at a TOF facility, GELINA, under the collaboration with EC-JRC-IRMM. The progress of the project is reported.