Review of Fast Reactor Physics Activities Relevant to LMFBR Programme in PNC, Japan, June 1976 - May 1977.

摘要

Fast reactor physics activities performed during a year from June, 1976, to May, 1977, along with the programme in PNC are reviewed. The first topic is the start up of JOYO which attained the criticality on April 24, 1977. Present status of the design of MONJU and the design study of the demonstration fast breeder reactor are briefly reviewed in the second part. The rest of this report presents the results of more specific studies as follows: mockup experiment in FCA and analysis to support MONJU design; paremater study on the breeding characteristics of a 1000 MWe class LMFBR; evaluation of actinide nuclear data; detailed analysis of sodium void experiments; the improvement of LSQ program for sensitivity analysis; effect of size of the critical mockup on the extrapolation errors in predicting neutronic properties of a 1000 MWe core; and research on the two-dimensional calculational method for shielding, and application to MONJU design and to the evaluation of neutrons streaming through a primary sodium duct of JOYO. (Atomindex citation 11:497176)