Accession Number : AD0766140
Title : Validity of Scale-Modeling for Gamma-Ray Attenuation.
Descriptive Note : Final rept.,
Corporate Author : KANSAS STATE UNIV MANHATTAN ENGINEERING EXPERIMENT STATION
Personal Author(s) : Verser,F. A. ; Donnert,Hermann J.
Report Date : 01 SEP 1973
Pagination or Media Count : 179
Abstract : An adjoint Monte Carlo code (GADJET) was used to calculate the exposure rate in full-scale and model structures located in the center of plane fallout fields (1 Ci/square ft of cobalt-60). Problems were run for a standard detector, an open basement, a basement with two thicknesses of covers, and a blockhouse with two thicknesses of walls. For all configurations investigated, the effects of nonscaling of the ground does not cause any problem and a procedure was developed to minimize the error introduced by non-scaling of the air. If the solid angle subtended by the roof remains unchanged, scaling of roof contamination offers no problems. The lip effect can be significant in structures with the detector below grade. (Modified author abstract)
Descriptors : (*GAMMA RAYS, ATTENUATION), (*FALLOUT, *SHIELDING), NUCLEAR EXPLOSIONS, CONCRETE, STEEL, LEAD(METAL), COMPUTER PROGRAMMING, CURVE FITTING, GRAPHICS, MATHEMATICAL MODELS
Subject Categories : Nuclear Radiation Shield, Protection & Safety
Radioactiv, Radioactive Wastes & Fission Prod
Distribution Statement : APPROVED FOR PUBLIC RELEASE