Gesellschaft Fuer Schwerionenforschung Mbh

Gsi Helmholtzzentrum Fur Schwerionenforschung Gmbh

Bernhard Schlitt

Ulrich Ratzinger

Alexander Bechthold

Alwin Schempp

Ludwig Dahl

Gerhard Kraft

Thomas Haberer

Dieter Schardt

Hartmut Eickhoff

Wolfgang Enghardt

Bernhard Franczak

Marius Pavlovic

Ulrich Weber

Wilma Kraft-Weyrather

Michael Kraemer

Joerg Pawelke

Rainer Hinz

Aleksiy Dolinski

Udo Krause

Juergen Klabunde

Michael Krämer

Jörg Pawelke

Jürgen Klabunde

The present invention relates to an apparatus for pre-acceleration of ions and optimized matching of beam parameters used in a heavy ion application comprising a radio frequency quadruple accelerator (RFQ) having two mini-vane pairs supported by a plurality of alternating stems accelerating the ions from about 8 keV/u to about 400 keV/u and an intertank matching section for matching the parameters of the ion beam coming from the radio frequency quadruple accelerator (RFQ) to the parameters required by a subsequent drift tube linear accelerator (DTL).

Apparatus for pre-acceleration of ion beams used in a heavy ion beam application system

The invention relates to a drift tube accelerator () for the acceleration of ion packets in ion beam acceleration systems, wherein a housing () consists of a longitudinally divided three-part vacuum tank () having a central unit () and a lower half-shell () comprising a structured lower steel block () and an upper half-shell () comprising a structured upper steel block (). (The cavity arranged between the central unit () and the structured steel blocks () has at least two acceleration regions (), between which there is arranged a magnetic focussing device (), which focuses the ion beam from one region () to the next region ().)The drift tube accelerator () according to the invention has such a stable and massive structure that it requires no external supporting aids of any kind in order to obtain alignment, which is reliable and accurate to a few micrometers, of the acceleration components within the drift tube accelerator () with respect to the longitudinal axis () of ion beam guidance of the central unit (). The massive structure of the drift tube accelerator () according to the invention can be used in general for any linear accelerator.

Drift tube accelerator for the acceleration of ion packets

Apparatus for pre-acceleration of ion beams used in a heavy ion beam applications system

The present invention relates to an apparatus for generating, extracting and selecting ions used in a heavy ion cancer therapy facility. The apparatus comprises an independent first (ECRIS ) and an independent second electron cyclotron resonance ion source (ECRIS ) for generating heavy and light ions, respectively. Further is enclosed downstream of spectrometer magnet (SP , SP ) for selecting heavy ion species of one isotopic configuration positioned downstream of each ion source (ECRIS , ECRIS ): a magnetic quadrupole triplet (QT , QT ) positioned downstream of each spectrometer magnet (SP , SP ); a switching magnet (SM) for switching between high-LET ion species and low-LET ion species of said two independent first and second ion source.

Apparatus for generating and selecting ions used in a heavy ion cancer therapy facility

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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Darmstadt, Germany

Bernhard Schlitt