Development of scintillation neutron detectors for non-destructive assay of nuclear fuel, 1; Master plan and feasibility study on nuclear reaction probability by Monte Carlo analysis

Kureta, Masatoshi   ; Soyama, Kazuhiko  ; Seya, Michio; Ozu, Akira  ; Haruyama, Mitsuo; Nakamura, Tatsuya  ; To, Kentaro  ; Sakasai, Kaoru  

Alternative techniques to neutron detection by He for nuclear security and safeguards systems are necessary to be developed since He shortage is serious. With support of Japanese government (MEXT), we have started an development project of ZnS ceramic scintillation neutron detectors for non-destructive assay of Pu in Fresh MOX fuel and other types of nuclear material for a use of safeguards verification. Here we present master plan of the project and feasibility study on neutron absorption probability between neutron and Lithium/Boron in our scintillator by using Monte Carlo code, MVP.