Deterministic model for dose calculation in photon radiotherapy

We present a model for dose calculation in photon radiotherapy based on deterministic transport equations. The model consists of two coupled equations, one for photon and one for electron transport and an equation for the absorbed dose. No assumptions are made with respect to the geometry or the hom...

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Bibliographic Details
Published in:Physics in medicine & biology 2006-02, Vol.51 (3), p.675-693
Main Authors: Hensel, Hartmut, Iza-Teran, Rodrigo, Siedow, Norbert
Format: Article
Language:English
Subjects:
Electrons
Models, Statistical
Models, Theoretical
Monte Carlo Method
Photons
Physics - methods
Radiometry - methods
Radiotherapy - methods
Radiotherapy Dosage
Radiotherapy Planning, Computer-Assisted
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Summary:We present a model for dose calculation in photon radiotherapy based on deterministic transport equations. The model consists of two coupled equations, one for photon and one for electron transport and an equation for the absorbed dose. No assumptions are made with respect to the geometry or the homogeneity of the irradiated medium, so irradiation of any heterogenous medium can be simulated. To get a mathematically simpler model, approximations to the exact equations are presented which keep the essential physical contents of the exact equations, but which can be solved with less numerical effort. The results of dose calculations for simple examples are presented and discussed.
ISSN:0031-9155
1361-6560
DOI:10.1088/0031-9155/51/3/013