PROBLEM TO BE SOLVED: To provide a rotary irradiation device capable of preventing a component within a superconducting electromagnet from deviation and distortion due to the rotation of a rotary gantry.SOLUTION: The rotary irradiation device according to this invention which is installed in a rotary gantry 3 and guides charged particle beams to an irradiation target with a superconducting electromagnet 5 forming at least one of a deflecting magnetic field deflecting the path of charged particle beams and a converging magnetic field converging the charged particle beams comprises a control device which performs control to rotate the rotary gantry 3 after exciting the superconducting electromagnet 5.SELECTED DRAWING: Figure 1【課題】回転ガントリの回転に伴う超伝導電磁石内の構成部材のずれ、歪を防止可能な回転照射装置を提供する。【解決手段】本実施形態の回転照射装置は、回転ガントリ３に設置され、かつ荷電粒子ビームの軌道を偏向する偏向磁場と、荷電粒子ビームを収束する収束磁場の少なくとも一方を形成する超伝導電磁石５で荷電粒子ビームを照射対象に導く回転照射装置であって、超伝導電磁石５を励磁してから回転ガントリ３を回転させるように制御する制御装置を備える。【選択図】図１
