Patent ID: 9199095
Filing Date: 2015-12-01
Classification: A61N,B01J

Abstract:
1. A particle beam irradiation system comprising: a synchrotron accelerating an ion beam and having the accelerated ion beam extracted therefrom; an irradiation device for executing irradiation with the ion beam extracted from the synchrotron; and a controller programmed to control component devices constituting the synchrotron to extract the ion beam at a plurality of energy stages according to a combination of at least one initial acceleration control data item, a plurality of extraction control data items for ion beam extraction at a plurality of energy stages, a plurality of energy change control data items connecting the plurality of extraction control data items, and a plurality of deceleration control data items corresponding to the plurality of extraction control data items, wherein the controller holds, as the plurality of extraction control data items, extraction condition setting data items for setting extraction conditions and extraction condition cancellation data items for canceling the extraction conditions.