Abstract
In order to contribute to the establishment of sophisticated radiotherapy, a research project for developing simulation systems utilizing advanced computational technology is in progress. In this project there are two subjects: 1) development of a dose calculation system for remotely supporting X-ray therapy, 2) development of a simulation system for demonstrating the realization of therapy using laser-drive protons. In the first subject, a dose calculation system for providing accurate dose distribution in a patient body is under developing. In this system, a voxel human model, a precise accelerator head model, and a Monte Carlo calculation are utilized to perform realistic simulation. The dose distribution is calculated by this system at a dose calculation center, and the related data are transferred through a network. The system is intended to support the current therapy widely, and also to apply to the advanced therapy of IMRT (Intensity Modulated Radiation Therapy) and CTRTx (CT radiotherapy). In the second subject, the simulation system for proton production process by laser, for proton transport and for dose calculation are under developing. The feasibility of laser-driven proton therapy will be investigated using the simulation system, which will be expected to lead to the less expensive and small-scaled proton treatment equipments.
