| 摘要 |
PROBLEM TO BE SOLVED: To provide a particle beam therapeutic apparatus which allows particle-beam irradiation at a plurality of treatment rooms simultaneously, so that a number of patients can receive the treatment.SOLUTION: A controller 4 is provided for executing a step of selecting one treatment room 6 serving as a time-sharing irradiation target for a group including a plurality of treatment rooms 6 among a plurality of groups α, &bgr;. The controller 4 scores irradiation-preparation stage of each of the treatment rooms 6 in the group including the plurality of treatment rooms 6, and selects the one treatment room 6 based on the scored value. The irradiation-preparation stage is scored based on the sum total of squares Se of an error between a target respiratory wave form b(t) and an actual respiratory wave form b(t). |
