Nuclear Data for Science and Technology pp 339-344 | Cite as
Comparison of Los Alamos Matxs, Vitamin-C and DLC-37 Multigroup Libraries for A Reference Fusion Hybrid Blanket
Abstract
The helium-cooled, thorium-metal based blanket of the tandem mirror hybrid reactor is used as a reference blanket for comparisons among the Los Alamos NJOY-produced fusion library collapsed into the 30 neutron- and 12 gamma-group MATXS library structure, the VITAMIN-C (DLC-41) library with 171 neutron- and 36 gamma-group structure, the VITAMIN-C library collapsed into the Los Alamos 30/12 group structure using a 1/E spectrum, and a 25 neutron- and 21 gamma-group cross-section set collapsed from the EPR (DLC-37) 100 neutron- and 21 gamma-group set using a 1/E spectrum. The NJOY- produced library is collapsed using a fusion-fission-l/E-Maxwellian spectrum weighting. The Los Alamos one-dimensional SN transport code ONEDANT and the EIR one-dimensional “surface-flux” transport code SURCU were used for the calculations. Studies of modelling parameters such as order of approximation in quadratures and scattering were also performed. The reactions 6Li (n,t), 7Li (n,n’t), Th (n,γ), Th (n,2n), Th (n,3n), Th (n,f), Fe (n,γ), Cr (n,γ) and Ni (n,γ) are compared for the beginning of life. Detailed specifications of the model and data are given, providing a preliminary proposed hybrid reactor blanket benchmark.
Keywords
Surface Flux Nuclear Data Spatial Mesh Tritium Breeding Ratio Atom Number DensityPreview
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References
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