Assessment of Neutron Requirements and Potential Sources for Fusion Development. Final Report

摘要

The particular aims of this project were to (1) identify the anticipated critical failure modes for fusion components exposed to high neutron flux, (2) determine the minimum acceptable number of simple material property tests which would be required for acceptance of a material for use in these components, (3) identify appropriate neutron sources for this testing, and (4) identify and define appropriate subscale tests which address the problem of interactive material effects in these components. The high-flux components examined in this study were limited to the first wall, breeder and breeder structure. Eleven critical failure modes for these components were identified and ranked. Materials properties relevant to each of these failure modes were identified and ranked, and material property test matrices were devised. The minimum number of irradiated materials tests identified for the first wall materials under consideration (PCA, HT-9 and V-15Cr-5Ti) was found to be 904, a significant decrease from earlier studies. The minimum number of irradiated tests identified for the various breeder materials (Li sub 2 O, LiAlO sub 2 , Liquid Li, and Liquid Li-Pb) was 280. EBR-II, HFIR and FFTF were identified as the most appropriate fission-based sources for fusion materials testing. (ERA citation 10:050661)