Techniques of neutron resonance capture analysis and prompt -ray analysis for active neutron NDA

アクティブ中性子NDA(非破壊分析法)のための中性子共鳴捕獲分析および即発線分析技術

小泉 光生 ; 土屋 晴文 ; 北谷 文人  ; 呉田 昌俊   ; 瀬谷 道夫; 原田 秀郎   ; Heyse, J.*; Kopecky, S.*; Mondelaers, W.*; Paradela, C.*; Schillebeeckx, P.*

Koizumi, Mitsuo; Tsuchiya, Harufumi; Kitatani, Fumito; Kureta, Masatoshi; Seya, Michio; Harada, Hideo; Heyse, J.*; Kopecky, S.*; Mondelaers, W.*; Paradela, C.*; Schillebeeckx, P.*

Active NDA techniques will draw out more information on the sample objects, in comparison with passive NDA techniques. Elementary particles (such as photons and neutrons) are used to induce nuclear reactions in the sample objects. The materials in the objects are deduced from the measured particles coming out of them. A new development program of active neutron NDA technologies has been started for detection/measurement of nuclear materials using a pulsed neutron source for nuclear security and nuclear non-proliferation; this project includes the basic technological development of NRTA, NRCA/PGA, neutron differential die-away (DDA) and a Delayed Gamma-ray (DG) technique. A system of active neutron NDA has been proposed. In this presentation, we review the methods and techniques on NRCA and PGA, which will be utilized for identifying materials in the objects in active neutron NDA.