## A new pencil beam model for photon dose calculations

- Pengcheng Zhang, Huazhong Shu, Antoine Simon, Pascal Haigron, Renaud de Crevoisier
- 2013 6th International Conference on Biomedical…
- 2013

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@article{Tillikainen2008A3P, title={A 3D pencil-beam-based superposition algorithm for photon dose calculation in heterogeneous media.}, author={Laura Tillikainen and Hannu Helminen and Tuomas Torsti and Sami Siljam{\"a}ki and Jyrki Alakuijala and J Pyyry and William H. Ulmer}, journal={Physics in medicine and biology}, year={2008}, volume={53 14}, pages={3821-39} }

- Published 2008 in Physics in medicine and biology
DOI:10.1088/0031-9155/53/14/008

In this work, a novel three-dimensional superposition algorithm for photon dose calculation is presented. The dose calculation is performed as a superposition of pencil beams, which are modified based on tissue electron densities. The pencil beams have been derived from Monte Carlo simulations, and are separated into lateral and depth-directed components. The lateral component is modeled using exponential functions, which allows accurate modeling of lateral scatter in heterogeneous tissues. The… CONTINUE READING