Accession Number : AD0656085

Title :   MEASUREMENTS AND SINGLE-VELOCITY CALCULATIONS OF DIFFERENTIAL ANGULAR THERMAL-NEUTRON ALBEDOS FOR CONCRETE,

Corporate Author : OAK RIDGE NATIONAL LAB TENN

Personal Author(s) : Maerker,R. E. ; Muckenthaler,F. J.

Report Date : JUL 1967

Pagination or Media Count : 56

Abstract : Measurements and single-velocity Monte Carlo calculations have been performed to determine the differential angular thermal-neutron albedos for a reinforced concrete from monodirectional beams of incident thermal neutrons. Preliminary calculations using a statistical estimation technique indicate up to 50 scatterings should be followed for each neutron in order to produce good estimates of the differential albedos, and up to 100 scatterings to produce good estimates of the capture gamma-ray differential dose albedos. Deviation between experiment and calculation can be reduced to an average of 5.1% for 72 points of comparison if an anisotropic scattering law for water deduced from earlier Argonne National Laboratory measurements is assumed. (Author)

Descriptors :   (*REINFORCED CONCRETE, MEASUREMENT), MONTE CARLO METHOD, THERMAL PROPERTIES, NEUTRONS, ALBEDO, GAMMA RAYS, ANISOTROPY, SCATTERING, TABLES(DATA), STATISTICAL ANALYSIS

Subject Categories : Ceramics, Refractories and Glass
      Statistics and Probability

Distribution Statement : APPROVED FOR PUBLIC RELEASE