Establishment of a Rationalized Safety Assurance Logic Aiming at FBRs with Enhanced Social Acceptance (1) -Interim Report of JNC/CEA Collaboration NWP-5(a) from 1999 to 2001: Common View and JNC's Contribution-

Niwa, Hajime; Pierre Lo Pinto*; Tobita, Yoshiharu; ; ; Kamiyama, Kenji

JNC TY9400 2002-021, 48 Pages, 2001/12

JNC-TY9400-2002-021.pdf:1.85MB

This is interim report describing the progress and the results of the collaborative research works between JNC snd CEA on the safety logic in future fast reactors under the title of "Establishment of Rationa- lizedSafety Assurance Logic Aiming at FBRs with Enhanced Social Acceptance" from 1999 to 2001. This contains JNC's contribution and common view of both partners. (1) Safety goals are proposed from JNC and CEA. Significant coherency is found such as to keep defence-in depth, mitigation measures against core melt are taken into account for containment design, "evacuation free" concept is pursued, quatitative safety target is also considered as well as deterministic approach, and improvement of social acceptance is considered from the development stage of the fuel cycle including nuclear power plants. (2) Safety characteristics of each candidate coolant were compared and discussed. Gascooled fast reactor is a common interest area. Discussions are focused