Development of NDA techniques for nuclear nonproliferation, 1; Present state of R&D, Improved differential die-away technique

Kureta, Masatoshi   

The new program "Development of active neutron NDA techniques" has been started for non-proliferation applications collaborating with EC-JRC since 2015. The final purpose of this program is to establish the measurement techniques for the high radioactive special nuclear material such as MA-Pu fuel for transmutation of minor actinide. In this program, the JAEA is conducting the R&D on active neutron non-destructive measurement techniques, DDA, NRTA, PGA and DGS. The present state of the development and improved differential die-away technique are presented in this report.