PARTICLE BEAM ROTATIONAL IRRADIATION APPARATUS AND PARTICLE BEAM THERAPY SYSTEM

摘要

A particle beam rotational irradiation apparatus includes: a frame that supports an irradiation nozzle and rotates; an irradiation-nozzle support member that is provided on an inner-circumference side of the frame and supports the irradiation nozzle; a movable floor that has a roller movable in a circumferential direction centering on a rotation axis of the frame; and a movable-floor rail that is provided in the circumferential direction on the inner-circumference side of the frame and supports the roller; wherein the irradiation-nozzle support member and the movable floor have respective coupling portions that are attachable/detachable to/from each other in the circumferential direction centering on the rotation axis of the frame.

主权项

1. A particle beam rotational irradiation apparatus which radiates a charged particle beam in a rotatable manner around an irradiation target, comprising:
an irradiation nozzle that radiates the charged particle beam to the irradiation target; a frame that supports the irradiation nozzle and rotates centering on an isocenter that is an irradiation reference for the charged particle beam; an irradiation-nozzle support member that is provided on an inner-circumference side of the frame and supports the irradiation nozzle; a movable floor that has a roller movable in a circumferential direction centering on a rotation axis of the frame; and a movable-floor rail that is provided in the circumferential direction on the inner-circumference side of the frame, and supports the roller; wherein the irradiation-nozzle support member and the movable floor have respective coupling portions that are attachable/detachable to/from each other in the circumferential direction centering on the rotation axis of the frame.