THE FUNDAMENTALS OF THE MEASUREMENT OF THE DOSIMETRIC QUANTITIES IN HADRONTHERAPY

摘要

The most important quantity for the dosimetry in radiotherapy is the absorbed dose in water. The calibration of the measuring instruments for D_w is a current operation when these instruments are dedicated to the measurement of this quantity for photon radiation. In the last years, a new type of particle beams began to be used in the radiotherapy: the hadrons. For hadrons, the measurement of the absorbed dose has still unsolved aspects which are the abject of the research in many laboratories. The calibration of the measuring instruments for D_w in hadron beam is also the subject of many research projects. This paper deals with the fundamentals of the measurement and calibration for D_w in hadron beams, for radiotherapy.