Effects of bone-and air-tissue inhomogeneities on the dose distributions of the Leksell Gamma Knife r calculated with PENELOPE

Abstract

Monte Carlo simulation with PENELOPE (v. 2003) is applied to calculate Leksell Gamma Knifer dose distributions for heterogeneous phantoms. The usual spherical water phantom is modified with a spherical bone shell simulating the skull and an air-filled cube simulating the frontal or maxillary sinuses. Different simulations of the 201 source configuration of… (More)

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