Monte carlo calculations of monoenergetic electron depth dose distributions in lif chips: Skin dose correction factors for beta rays

Y. S. Horowitz, C. R. Hirning, P. Yuen, P. Wong

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

Monte Carlo calculations have been carried out for monoenergetic electrons from 0.1 to 4 MeV irradiating LiF chips in both perpendicular and isotropic geometry. This enabled the calculation of skin dose correction factors (beta factors) for typical beta energy spectra as measured with a beta-ray spectrometer at CANDU nuclear generating stations. The correction factors were estimated by averaging the depth dose distributions for the monoenergetic electrons over the experimentally measured beta-ray spectra. The calculations illustrate the large uncertainty in beta factors arising from the unknown angular distribution of the beta-ray radiation field and uncertainties in the shape of the beta-ray spectra below 500 keV.

Original languageEnglish
Pages (from-to)330-337
Number of pages8
JournalHealth Physics
Volume67
Issue number4
DOIs
StatePublished - 1 Jan 1994

Keywords

  • Beta particles
  • Dosimetry
  • Electrons
  • Monte Carlo

ASJC Scopus subject areas

  • Epidemiology
  • Radiology Nuclear Medicine and imaging
  • Health, Toxicology and Mutagenesis

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