Particle therapy system, method for determining control parameters of such a therapy system, radiation therapy planning device and irradiation method

摘要

A method for determining control parameters of a therapy system for an irradiation sequence of a target volume to be irradiated from an irradiation direction is provided. The method includes automatically splitting up the target volume into a number of subvolumes, each of the subvolumes being no greater than the maximum scanning volume, and each of the volume elements being comprised in at least one subvolume, automatically determining a patient position and/or patient holder position as a first control parameter in which one of the subvolumes is arranged in the scanning area, and automatically determining a particle “sub” number for each volume element of a subvolume as a second control parameter, such that the sum of all the particle “sub” numbers of a first volume element corresponds to the required particle number of the first volume element.