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Dose distributions in regions containing beta sources: large spherical source regions in a homogeneous medium
B L Werner1, C S Kwok, I J Das
1Department of Therapeutic Radiology, University of Minnesota Hospital and Clinic, Minneapolis 55455.
Medical Physics
|May 1, 1988
Abstract:
The energy averaged Boltzmann equation model is applied to the determination of dose distributions in infinite, homogeneous media with uniform, monoenergetic, isotropic source distributions in spherical regions of radius larger than the electron range. The generalization to the case of spherically symmetric source distributions is made. Comparisons with dose distributions calculated by the integration of dose point kernels derived from Monte Carlo calculations are presented.