PROBLEM TO BE SOLVED: To provide a particle beam irradiation system capable of irradiating an affected area with particle beams in many directions and irradiating particle beam with high positional precision without making the system a gantry structure.SOLUTION: The particle beam irradiation system A has a particle beam irradiation unit 1 irradiating the particle beam from one direction, a CT scanner 2 confirming the position of the affected area 3a, a drive section 5 moving a patient 3 from a detecting range 2a of the CT scanner 2 to the irradiation range of the particle beam irradiation unit 1, a patient fixing unit 4 fixing the patient 3 mounted on the drive section 5 rotatably around an axis y in a head to tail direction of the patient 3, and a housing unit 6 housing the drive section 5 and the CT scanner 2 and being rotatable around an axis z perpendicular to the plane including the irradiation direction x of the powder beam irradiation unit 1 and the movement direction of the drive section 5.COPYRIGHT: (C)2008,JPO&INPIT【課題】粒子線照射装置を回転ガントリー構造にしないで粒子線を患部に多方向照射でき、位置精度よく粒子線を照射できる粒子線照射システムを提供する。【解決手段】一方向から粒子線を照射する粒子線照射装置1、患部3aの位置確認をするCTスキャナー2、CTスキャナー2の検出範囲2aから粒子線照射装置1の照射範囲まで患者3を移動させる駆動部5、患者3を固定し、駆動部5に患者3の頭尾方向を軸yとして回転可能に装着される患者固定装置4、駆動部5とCTスキャナー2を収納し、粒子線照射装置1の照射方向xと駆動部5の移動方向を含む平面に直交する軸zで回転可能な収納ユニット6を備えた粒子線照射システムA。【選択図】図1
