
Accession Number : AD0697908
Title : DIFFERENTIAL NEUTRON AND SECONDARY GAMMARAY ALBEDOS FOR STEELCOVERED CONCRETE SLABS: VOLUME I. DESCRIPTION OF CALCULATIONS AND COMPARISONS WITH OTHER DATA,
Corporate Author : RADIATION RESEARCH ASSOCIATES INC FORT WORTH TEX
Personal Author(s) : Wells,M. B. ; Marshall,J. D.
Report Date : 10 JUL 1969
Pagination or Media Count : 61
Abstract : Calculations were performed with the twodimensional Sn procedure DOT to determine the distribution in energy and angle of the neutrons and secondary gamma rays reflected from steelcovered concrete slabs for 27 incident neutron energy intervals ranging from 14.918 MeV to 2.53 x 10 to the 8th power MeV and for 5 incident directions. The doublydifferential neutron current albedo was computed for 30 emergent directions and for each of the 27 energy intervals lying between and including the incident energy interval and 2.53 x 10 to the 8th power MeV. The secondary gammaray doublydifferential current albedo was computed for the same parameters as those used to define the neutron albedo except that 13 energy intervals between 10.0 MeV and 0.01 MeV were used to define the reflected secondary gammaray energy distribution. The neutron and secondary gammaray doubledifferential current albedos were converted to number albedos, differential currentand fluxdose albedos, and currentand fluxdose albedos. These data are compared with albedo data reported by other investigators for iron slabs and concrete slabs. (Author)
Descriptors : (*NEUTRON TRANSPORT THEORY, CONCRETE), (*SHIELDING, *ALBEDO), STEEL, NEUTRONS, GAMMA RAYS, DUCTS
Subject Categories : Nuclear Radiation Shield, Protection & Safety
Distribution Statement : APPROVED FOR PUBLIC RELEASE