3. DESCRIPTION OF PROGRAM OR FUNCTION
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FORMAT: VITAMIN-J structure
NUMBER OF GROUPS: 175 neutron + 42 photon
NUCLIDES: H, He, Li, Be, B, C, N, O, F, Na, Mg, Al, Si, Cl, K, Ca, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zr, Nb, Mo, Ag, Cd, Sn, Cs, Ba, Nd, Sm, Gd, Hf, Ta, W, Pb, Th, U, Pu, Am.
ORIGIN: JEF-1, EFF-1
WEIGHTING SPECTRUM: VITAMIN-E input weighting spectrum.
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The VITAMIN-J structure coupled 175/42 neutron/photon-group MATXS library contains neutron and photon data for 92 isotopes of 44 chemical elements. Designed for shielding and fusion blanket analysis, this library includes photon-production, material damage and heating data for several temperatures, background cross sections and P6 scattering anisotropy. The data can be used by most transport and diffusion codes after preprocessing with the MATXS interface codes TRAMIX or TRANSX-CTR.