[Presentation of a new shutter and compensator table for radiotherapy]

A shutter and compensator table for radiotherapy is presented which is moved by a motor and adjusted to a fixed position with respect to the irradiation unit. It is equipped with removable rotation plates, each possessing six trays for shutters and compensators. By hydraulic and infinitely variable regulation, these plates can be brought into different distances from the source to the lower edge of the shutter, one of the trays always lying precisely within the vertical axis of the central tray. The application of this equipment allows a very good reproduction of the geometric irradiation parameters and is easily operable in common practice.