Monte Carlo calculations of monoenergetic electron depth dose distributions in LiF chips: Skin dose correction factors for beta rays
Journal Article
·
· Health Physics
- Ben Gurion Univ. of the Negev, Beersheva (Israel)
- Ontario Hydro, Whitby (Canada)
- Chalk River Labs., Ontario (Canada)
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. 28 refs., 8 figs., 2 tabs.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 54454
- Journal Information:
- Health Physics, Journal Name: Health Physics Journal Issue: 4 Vol. 67; ISSN HLTPAO; ISSN 0017-9078
- Country of Publication:
- United States
- Language:
- English
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