METHOD AND APPARATUS FOR IRRADIATION OF A TARGET VOLUME

摘要

A data set defines target points (30) in a target volume (40) in a body at which a particle beam is to be directed in succession in a continuous or discontinuous process, wherein a predetermined spatial dose distribution is to be produced in an area around a target point (30) by direction of the particle beam at that target point (30), and each target point (30) has, measured in the direction of the particle beam in a homogeneous body equivalent to the body, a z spacing from a next adjacent target point (30) at a higher or lower particle energy. In a method of generating the data set, the target points (30) in the data set are so defined that at least the z spacings or the spatial dose distributions are dependent upon the particle energy in question.