SIMULATION DEVICE FOR CHARGED PARTICLE BEAM AMOUNT, IRRADIATION DEVICE OF CHARGED PARTICLE BEAM, SIMULATION METHOD FOR CHARGED PARTICLE BEAM AMOUNT, AND IRRADIATION METHOD OF CHARGE PARTICLE BEAM

摘要

PROBLEM TO BE SOLVED: To provide a simulation device and simulation method for charged particle beam amount, which allow early determination of a dose distribution of charged particle beam with a reduced load on arithmetic processing while suppressing the deterioration of accuracy.;SOLUTION: The simulation device 3 includes: an input unit 31 which receives input of simulation data including material information of an irradiation object X and irradiation information of proton beam B; and an arithmetic unit 33 which determines a dose distribution of the proton beam B within the irradiation object X based on the simulation data received by the input unit 31 and a dose distribution kernel. The arithmetic unit 33 forms a Surface Map from the proton beam B assumed to reach the body surface, breaks down the Surface Map to break down the proton beam B into a plurality of beamlets Ba, and determines the dose distribution of the proton beam B within the irradiation body X based on the simulation data received by the input unit 31 and the plurality of beamlets Ba.;COPYRIGHT: (C)2012,JPO&INPIT