skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Effect of an overhead shield on gamma-ray skyshine

Abstract

A hybrid Monte Carlo and integral line-beam method is used to determine the effect of a horizontal slab shield above a gamma-ray source on the resulting skyshine doses. A simplified Monte Carlo procedure is used to determine the energy and angular distribution of photons escaping the source shield into the atmosphere. The escaping photons are then treated as a bare, point, skyshine source, and the integral line-beam method is used to estimate the skyshine dose at various distances from the source. From results for arbitrarily collimated and shielded sources, the skyshine dose is found to depend primarily on the mean-free-path thickness of the shield and only very weakly on the shield material.

Authors:
; ;  [1]
  1. Kansas State Univ., Manhattan, KS (United States). Dept. of Nuclear Engineering
Publication Date:
OSTI Identifier:
264346
Resource Type:
Journal Article
Resource Relation:
Journal Name: Nuclear Science and Engineering; Journal Volume: 123; Journal Issue: 2; Other Information: PBD: Jun 1996
Country of Publication:
United States
Language:
English
Subject:
66 PHYSICS; GAMMA SOURCES; SHIELDS; PHOTON TRANSPORT; EARTH ATMOSPHERE; RADIATION STREAMING; RADIATION DOSES; GAMMA RADIATION

Citation Formats

Stedry, M.H., Shultis, J.K., and Faw, R.E.. Effect of an overhead shield on gamma-ray skyshine. United States: N. p., 1996. Web.
Stedry, M.H., Shultis, J.K., & Faw, R.E.. Effect of an overhead shield on gamma-ray skyshine. United States.
Stedry, M.H., Shultis, J.K., and Faw, R.E.. Sat . "Effect of an overhead shield on gamma-ray skyshine". United States. doi:.
@article{osti_264346,
title = {Effect of an overhead shield on gamma-ray skyshine},
author = {Stedry, M.H. and Shultis, J.K. and Faw, R.E.},
abstractNote = {A hybrid Monte Carlo and integral line-beam method is used to determine the effect of a horizontal slab shield above a gamma-ray source on the resulting skyshine doses. A simplified Monte Carlo procedure is used to determine the energy and angular distribution of photons escaping the source shield into the atmosphere. The escaping photons are then treated as a bare, point, skyshine source, and the integral line-beam method is used to estimate the skyshine dose at various distances from the source. From results for arbitrarily collimated and shielded sources, the skyshine dose is found to depend primarily on the mean-free-path thickness of the shield and only very weakly on the shield material.},
doi = {},
journal = {Nuclear Science and Engineering},
number = 2,
volume = 123,
place = {United States},
year = {Sat Jun 01 00:00:00 EDT 1996},
month = {Sat Jun 01 00:00:00 EDT 1996}
}