
Accession Number : AD0636788
Title : MONTE CARLO CALCULATION OF SELFSHIELDING BY ENCAPSULATED GAMMA RAY SOURCES.
Descriptive Note : Final rept. Jun 65Aug 66 on Nuclear Radiation Shielding Studies.
Corporate Author : ILLINOIS UNIV URBANA
Personal Author(s) : Preiss, Kenneth
Report Date : AUG 1966
Pagination or Media Count : 49
Abstract : The dimensions of many encapsulated gamma ray sources used in experiments are not small compared with the meanfreepathlength of the radiation within them. For this reason, the emitted radiation will not be at the source energies only, but will be distributed in a continuous spectrum. Furthermore, if the source is cylindrical, the emitted radiation will not be isotropically distributed about the source. This report describes a calculation by the Monte Carlo method to find the energy and angular distributions of photons emitted from a cylindrical or spherical encapsulated source. Computed results are compared with experimental observations of energy and angular distribution, and show good agreement. Calculated spectra for typical cylindrical sources of Co60 encapsulated in iron are given. (Author)
Descriptors : (*MONTE CARLO METHOD, *SHIELDING), (*GAMMA RAYS, SHIELDING), PHOTONS, ENERGY, DISTRIBUTION, COMPUTER PROGRAMMING
Subject Categories : Numerical Mathematics
Nuclear Radiation Shield, Protection & Safety
Distribution Statement : APPROVED FOR PUBLIC RELEASE