Gesellschaft Fuer Schwerionenforschung Mbh

Gsi Helmholtzzentrum Für Schwerionenforschung Gmgh

Gsi Helmholtzzentrum Fur Schwerionenforschung Gmbh

Ulrich Weber

Gerhard Kraft

Thomas Haberer

Dieter Schardt

Hartmut Eickhoff

Bernhard Schlitt

Ulrich Ratzinger

Wolfgang Enghardt

Bernhard Franczak

Marius Pavlovic

Wilma Kraft-Weyrather

Ludwig Dahl

Stephan Kraft

Sebastian Kraft

Michael Kraemer

Juergen Klabunde

Udo Krause

Aleksiy Dolinski

Rainer Hinz

Joerg Pawelke

Michael Krämer

Jörg Pawelke

Jürgen Klabunde

An energy filter device for beams which are used in the course of ion beam therapy, wherein at least one passive modulator is provided. The modulator can comprise a scattering film for the beams and a collimator with an opening for controlling the beams, or a magnetic filter and an absorber, or a nonlinear filter and an apparatus for clipping the intensity of individual energy levels of the beams.

Energy filter device

The invention relates to an ion beam scanning system having an ion source device, an ion acceleration system and an ion beam guidance system comprising an ion beam outlet window for a converging centered ion beam, and a mechanical alignment system for the target volume to be scanned. For that purpose, the ion acceleration system can be set to an acceleration of the ions required to obtain a maximum depth of penetration. The scanning system also has energy absorption means arranged in the path of the ion beam between the target volume and the ion beam outlet window transverse to the center of the ion beam. The energy absorption means can be displaced transverse to the center of the ion beam in order to vary the energy of the ion beam, so enabling, in the target volume, depth modulation of the ion beam, which is effected by means of a linear motor and the transverse displacement of the energy absorption means, with depth-staggered scanning of volume elements of the target volume in rapid succession. The invention relates also to a method of ion beam scanning and a method of operating an ion beam scanning system using a gantry system.

Ion beam scanner system and operating method

The invention relates to an apparatus and a method for irradiating tumor tissue ( ) of a patient ( ) by means of an ion beam ( ). For that purpose, the apparatus has a deflecting device ( ) for the ion beam ( ) for slice-wise and area-wise scanning of the tumor tissue ( ) and an ion beam energy control device for slice-wise and depth-wise scanning of the ion beam ( ). An electromechanically driven ion-braking device ( ) is provided as a depth-wise scanning adaptation apparatus ( ) for adapting the range of the ion beam ( ) and has faster depth-wise adaptation than the energy control device of an accelerator. The movement of a patient is monitored by means of a movement detection device ( ) for detecting a temporal and positional change in the location of the tumor tissue ( ) in a treatment space ( ). A control device controls the deflecting device ( ) and the depth-wise adaptation apparatus ( ) for adjusting the ion beam direction and ion beam range, respectively, when scanning the tumor tissue ( ) in the course of temporal and positional change in the location of the tumor tissue ( ) in the treatment space ( ).

Device for irradiating a tumor tissue

An ion beam therapy system and method for operating the system includes a source of ions ( ), an accelerator system ( ) and an ion beam transport system ( ) for directing an ion beam to a plurality of treatment stations ( ) to treat patients. The ion beam transport system ( ) includes a gantry ( ) carrying a vertical deflection system ( ) and horizontal deflection system ( ) positioned upstream from a last bending magnet (65) so as to provide a parallel scanning mode by an edge focusing effect.

Ion beam therapy system and a method for operating the system

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Bad Homburg, Germany

Ulrich Weber