Development of the radial dose distribution function relevant to the treatment planning system for heavy particle cancer therapy

This paper presents a study of the radial dose due to the irradiation of a heavy ion, through simulations using a selection of types of atomic and molecular (AM) data. In order to widely spread our radial dose simulation results, a simple radial dose distribution function is proposed. This required a comparison of our results with the available conventional radial dose distributions. It is also shown that the treatment planning system for heavy particle cancer therapy is expected to become one of the most important applications of AM data to biological and medical science. (paper)