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Tuesday, August 04, 2009
10:00 AM - 11:00 AM
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Optimal Treatment Planning in Radiotherapy Based on Boltzmann Transport Equations

Martin Frank
University of Kaiserslautern, Germany

Treatment with high energy ionizing radiation is one of the main methods in modern cancer therapy that is in clinical use. During the last decades, two main approaches to dose calculation were used, Monte Carlo simulations and semi-empirical models based on Fermi-Eyges theory. A third way to dose calculation has only recently attracted attention in the medical physics community. This approach is based on the deterministic kinetic equations of radiative transfer. In this work, we present a Boltzmann transport model for dose calculation in radiation therapy. We discuss a fluid dynamic approximation of this model. Additionally, we formulate an optimal control problem for the desired dose. Based on this formulation, we derive optimality conditions. Numerical results in one and two dimensions are presented.

Host: Cory Hauck