PARTICLE BEAM THERAPY SYSTEM

摘要

A particle therapy system has an irradiation system attached to a rotary drum of a gantry. A radiation treatment cage disposed in the rotary drum includes a movable floor including a horizontal floor portion. The movable floor includes a number of footboards connected bendably and X-ray transmission plates. The movable floor has a slide member at each end thereof, and the slide member is movably attached to a guide rail that is provided for each of opposite side surfaces of the irradiation system. X-ray sources are disposed outside the rotary drum apart from each other in a circumferential direction of the rotary drum and attached to the outer surface of the rotary drum. The irradiation system includes X-ray detection systems opposite to the X-ray sources.

主权项

1. A particle therapy system comprising:
a gantry; an irradiation system which is attached to the gantry and to which an ion beam is incident; a treatment cage installed in the gantry, having an orbit including an arc-like portion and a horizontal portion communicating with the arc-like portion, and including a surrounding member formed by a plurality of connected footboard members and capable of moving along the orbit; an X-ray source disposed outside the surrounding member and attached to the gantry; and an X-ray detection system disposed inside the surrounding member, attached to the irradiation system, and detecting an X-ray from the X-ray source, wherein the surrounding member includes an X-ray transmission member disposed between the adjacent footboard members, connected to the each of the adjacent footboard members, disposed between the X-ray source and the X-ray detection system, and transmitting an X-ray emitted from the X-ray source.