PROBLEM TO BE SOLVED: To provide a particle beam treatment device that can treat an affected part of human or animal eyeball in a short time and is applicable to treatment of other affected parts of human or animal than the eyeball.SOLUTION: A particle treatment device for emitting a charged particle beam 2 to an affected area of a patient's eyeball 1 includes: a particle accelerator 3 that generates the charged particle beam； a movable irradiation nozzle 4 that is adjusted so as to direct the charged particle beam to the patient's eyeball in accordance with a different beam direction； and a patient support 5 that is adjusted so as to accept and hold a patient located at a treatment position. The device further includes: pencil beam scan subsystems 10a and 10b that are configured to scan a particle beam on an affected part of the patient's eyeball； a movable marker 30 that is arranged so as to be seen by the patient while the patient is located at the treatment position； and a controller 40 that is configured to move the marker to a prescribed and patient-specific position before the particle beam is emitted to the eyeball.SELECTED DRAWING: Figure 1【課題】人間又は動物の眼球の患部を治療を短時間で可能にし、眼球以外の人間又は動物の患部の治療にも適応可能な粒子線治療装置を提供する。【解決手段】荷電粒子線２を患者の眼球１の患部に照射するための粒子治療装置であって、荷電粒子線を生成する粒子加速器３、異なるビーム方向に従って前記荷電粒子線を前記患者の眼球に向かわせるように適合された、移動可能な照射ノズル４、及び、治療位置にいる患者を受け止め、保持する適合された患者支持器５を含む粒子治療装置。装置は、患者の眼球の患部上の粒子線をスキャンするように構成されたペンシルビームスキャンサブシステム１０ａ、１０ｂ、患者が治療位置にいる間、患者によって見えるように配置される移動可能なマーカー３０、及び、粒子線で眼球の照射する前にそのマーカーを所定のかつ患者に特定の位置の方へ動かすように構成されたコントローラ４０を更に含む。【選択図】図１
