Patent ID: 7834334

Claim:
A particle therapy system for irradiating a volume to be irradiated with high-energy particles, the system comprising: a beam exit that delivers a particle beam from a radiation delivery and acceleration system, positioned in an irradiation position, the irradiation position being specified in a therapy plan relative to an irradiation isocenter of the particle therapy installation, an imaging device that verifies the location of the volume to be irradiated with respect to the particle beam, a patient positioning device that is operable to position the volume to be irradiated in the irradiation position, the imaging device being operable to verify the location of the volume to be irradiated in an imaging position that is spatially distant from the irradiation position, the patient positioning device being operable to automatically change position between the imaging position and the irradiation position, wherein the irradiation isocenter is adjustable in its distance from the beam exit.