4.2.2　Development of Biological Models and Related Detectors for Ion-beam Therapy

Abstract

Carbon beams, used for cancer therapy, are characterized by rapidly changing radiation qualities as well as dose. This is significantly different from ordinary types of radiation. As a result, the biological effect and treatment efficacy change and actually increase around an end point. Therefore, a reliable biological model is indispensable for safe and efficient therapy. This article describes the development and character of the NIRS biological model, and compares it with the GSI biological model. Further development of various detectors for measuring the radiation qualities is outlined.