[2B09-13] Metal fuel pyroprocessing

3:15 PM - 3:30 PM JST(6:15 AM - 6:30 AM UTC)

[2B11] Conceptual Design Study of Fast Reactor Metal Fuel Cycle Facilities for Commercialization(7) Consideration of Material Accountancy Method Involving In-process Inventories

*Hiromu Ambai¹, Tadahiro Washiya¹, Sachimasa Yoshida¹, Takanari Ogata^1,2, Hideyuki Sugihara¹, Yoshikazu Yamada¹, Tomoomi Segawa¹, Yoshiharu Sakamura^1,2, Tsuyoshi Murakami^1,2 (1. JAEA, 2. CRIEPI)

Keywords:

fast reactor,fuel cycle,metal fuel,fuel fabrication,reprocessing,safeguards,material accountancy,MUF

Based on the results of FS design in Japan, the material accountancy technologies of the U.S. Fuel Conditioning Facility (FCF), and the research and development under the MPACT project, material accountancy method for application to metal fuel fabrication and pyroprocessing facilities was investigated. In Pu-handling facilities, interim inventory verification (IIV) is required to satisfy the IAEA timeliness goals. Furthermore, in fast reactor fuel cycle facilities with large Pu throughput, it is necessary to keep MUF (Material Unaccounted For) at IIV sufficiently small. For IIV involving various in-process inventories, reasonable process time charts, materials to be measured, and MUF uncertainties based on these conditions were considered.