Patent ID: 7122811
Filing Date: 2006-10-17
Classification: A61N,G21K,H05H

Abstract:
1. A treatment planning unit for creating a treatment plan to perform the treatment with respect to an affected part, the treatment planning unit comprising: an input unit; a computing unit that sets a plurality of layer regions that are different in irradiation energy from each other in the irradiation direction of a charged particle beam, in a target including an affected part set using tomography image information including information on the affected part, that sets a plurality of irradiation positions of the charged particle beam in each of these layer regions, that using an irradiation dose and a reference irradiation dose with respect to each irradiation position set in each layer region, sets the number of times of irradiations of the charged particle beam with respect to each of the irradiation regions set in each of the layer regions, and that sets a plurality of number of times of irradiations with respect to at least one said irradiation position in the layer region to create a treatment plan information with respect to the affected part; and a display unit for displaying the treatment planning information.