Accession Number : AD0682541

Title :   AN EMPIRICAL FORMULA FOR CONCRETE SLAB PENETRATION BY PLANE PARALLEL GAMMA-RAY BEAMS.

Descriptive Note : Final rept. on Nuclear Radiation Shielding Studies,

Corporate Author : ILLINOIS UNIV URBANA

Personal Author(s) : Thayer,G. R. ; Roussin,R. W. ; Chilton,A. B.

Report Date : JAN 1968

Pagination or Media Count : 102

Abstract : An empirical formula is developed which gives the directional distribution of exposure, due to scattered radiation, emerging from a concrete slab for a plane parallel photon beam striking it. The coefficients of the terms in the formula are determined by a least-square-fitting procedure to Monte Carlo results of Berger and Morris. A detailed comparison of integrated results of this formulation and the original data is reported. Computer programs, with illustrative sample problems, are also reported. (Author)

Descriptors :   (*CONCRETE, SHIELDING), (*GAMMA RAYS, *SHIELDING), SCATTERING, LEAST SQUARES METHOD, MONTE CARLO METHOD, PHOTONS, COMPUTER PROGRAMS, PENETRATION, FLOW CHARTING

Subject Categories : Nuclear Radiation Shield, Protection & Safety

Distribution Statement : APPROVED FOR PUBLIC RELEASE