Water-cooled liquid and solid breeder blanket concepts

Four concepts have been evaluated: (1) lithium oxide breeder (Li/sub 2/O) with and without beryllium neutron multiplier (Li/sub 2/O/H/sub 2/O, Li/sub 2/O/H/sub 2/O/Be); (2) ternary oxide ceramic breeder (..gamma..-LiA1O/sub 2/) with beryllium neutron multiplier (LiA1O/sub 2//H/sub 2/O/Be); (3) ..gamma..-LiA1O/sub 2/ with lead neutron multiplier (LiA1O/sub 2//H/sub 2/O/Pb); and (4) 17Li-83Pb breeder without a separate neutron multiplier (LiPb/H/sub 2/O). Candidate structural materials are austenitic stainless steel (PCA), ferritic steel (HT-9), and vanadium alloy (V-15Cr-5Ti). The pressurized water coolant is assumed to be at 280/sup 0/C inlet, 320/sup 0/C outlet, and 15.2 MPa design pressure.