Patent ID: 7579603

Claim:
A particle therapy device comprising: an accelerator; a particle beam delivery unit operable with the accelerator, the particle beam delivery unit operable to deliver particles to at least two irradiation positions; and a control system configured to monitor the particles along a particle beam path, the control system comprising an assignment unit, at least one control unit disposed at one of the at least two irradiation positions and an accelerator control unit, wherein the at least one control unit is configured to emit a request signal that requests a particle beam for an irradiation procedure, wherein the assignment unit is configured to assign the particle beam path to the requesting irradiation position, and is connected to configurable elements that direct the beam path, wherein only those configurable elements that are required for the beam path are selectively activated, and wherein the accelerator control unit is configured to emit configuration parameters to the configurable elements, the assignment unit configured as a fail-safe control system such that the assignment unit sends an activation signal to the configurable elements of the beam path when setting up the particle beam path, the activation signal separate from the emission of configuration parameters from the accelerator control, the activation signal being present during the implementation of the configuration parameters and allowing the implementation of the configuration parameters.