Effect of source angular distribution on the evaluation of gamma-ray skyshine

R. D. Sheu, B. J. Chang, I. J. Chen, S. H. Jiang

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

The effect of the angular distribution of the equivalent point source on the analysis of the skyshine dose rates was investigated in detail. The dedicated skyshine codes SKYDOSE and McSKY were revised to include the capability of dealing with the anisotropic source. It was found that a replace of the cosine-distributed source by an isotropic source will overestimate the skyshine dose rates for large roof-subtended angles and cause underestimation for small roof-subtended angles. For building with roof shielding, however, replacing the cosine-distributed source by an isotropic source will always underestimate the skyshine dose rates. The skyshine dose rates from a volume source calculated by the dedicated skyshine code agree very well with those of the MCNP Monte Carlo calculation.

Original languageEnglish
Pages (from-to)645-649
Number of pages5
JournalJournal of Nuclear Science and Technology
Volume37
DOIs
StatePublished - Mar 2000
Externally publishedYes

Keywords

  • Angular distribution
  • Equivalent point source
  • Gamma ray
  • MCNP
  • McSKY
  • SKYDOSE
  • Skyshine

Fingerprint

Dive into the research topics of 'Effect of source angular distribution on the evaluation of gamma-ray skyshine'. Together they form a unique fingerprint.

Cite this