Refine your search:     
Report No.

Development of active neutron NDA techniques for nuclear non-proliferation and nuclear security, 3; DGS measurements

Takahashi, Toon; Koizumi, Mitsuo; Rodriguez, D.; Rossi, F.; Takamine, Jun; Seya, Michio; Paradela, C.*; Heyse, J.*; Schillebeeckx, P.*; Pedersen, B.*; Mondelaers, W.*

Delayed Gamma-ray Spectroscopy (DGS) has been developed as one of the non-destructive assay using active neutron for nuclear non-proliferation and nuclear security in the collaboration research between Japan Atomic Energy Agency and Joint Research Center of European Commission. The differences of fission-product (FP) yield distributions are depending on the fissile nuclide (e.g. $$^{235}$$U, $$^{239}$$Pu, and $$^{241}$$Pu). Therefore, ratios of fissile materials can be deduced by analyzing spectra of delayed gamma-rays which are emitted from radioactive decays of unstable FPs produced by irradiating neutrons and causing induced fission. We are developing an analytical method focusing on high energy delayed gamma-rays above 3 MeV from FPs with relatively short half-life (seconds to several minutes). The demonstration plan of DGS will be presented.



- Accesses





[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.