CORPUSCULAR BEAM IRRADIATION INSTRUMENT AND CORPUSCULAR BEAM THERAPEUTIC INSTRUMENT

摘要

PROBLEM TO BE SOLVED: To obtain a corpuscular beam therapeutic instrument which realizes accurate irradiation of beams in raster scanning and hybrid scanning by eliminating the influence of hysteresis of a scanning electromagnet.;SOLUTION: The corpuscular beam irradiation instrument has a scanning power source 4 outputting exciting current of a scanning electromagnet 3, and an irradiation controller 5 controlling the scanning power source 4. The irradiation controller 5 has a scanning electromagnet command value learning generator 37 having a mathematic model 60 generating a command value of the exciting current, evaluating the result of a run-through as a series of irradiation actions by the command value of the exiting current output to the scanning power source 4, updating the mathematic model 60 on the basis of the result of evaluation, accumulating the experiences of the run-through and outputting the command value of the exiting current generated by the mathematic model 60 on the basis of the accumulated run-through experiences to the scanning power source 4.;COPYRIGHT: (C)2012,JPO&INPIT