Patents by Inventor Ludwig Dahl

Ludwig Dahl has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Apparatus for generating and selecting ions used in a heavy ion cancer therapy facility
    Patent number: 6809325
    Abstract: 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 1) and an independent second electron cyclotron resonance ion source (ECRIS 2) for generating heavy and light ions, respectively. Further is enclosed downstream of spectrometer magnet (SP1, SP2) for selecting heavy ion species of one isotopic configuration positioned downstream of each ion source (ECRIS 1, ECRIS 2): a magnetic quadrupole triplet (QT1, QT2) positioned downstream of each spectrometer magnet (SP1, SP2); 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.
    Type: Grant
    Filed: November 12, 2003
    Date of Patent: October 26, 2004
    Assignee: Gesellschaft fuer Schwerionenforschung mbH
    Inventors: Ludwig Dahl, Bernhard Schlitt
  • Apparatus for generating and selecting ions used in a heavy ion cancer therapy facility
    Publication number: 20040069958
    Abstract: 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 1) and an independent second electron cyclotron resonance ion source (ECRIS 2) for generating heavy and light ions, respectively. Further is enclosed downstream of spectrometer magnet (SP1, SP2) for selecting heavy ion species of one isotopic configuration positioned downstream of each ion source (ECRIS 1, ECRIS 2): a magnetic quadrupole triplet (QT1, QT2) positioned downstream of each spectrometer magnet (SP1, SP2); 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.
    Type: Application
    Filed: November 12, 2003
    Publication date: April 15, 2004
    Inventors: Ludwig Dahl, Bernhard Schlitt
  • Ion beam therapy system and a method for operating the system
    Patent number: 6683318
    Abstract: An ion beam therapy system and method for operating the system includes a source of ions (300), an accelerator system (400) and an ion beam transport system (60) for directing an ion beam to a plurality of treatment stations (100) to treat patients. The ion beam transport system (60) includes a gantry (8) carrying a vertical deflection system (45) and horizontal deflection system (55) positioned upstream from a last bending magnet (65) so as to provide a parallel scanning mode by an edge focusing effect.
    Type: Grant
    Filed: July 10, 2001
    Date of Patent: January 27, 2004
    Assignee: Gesellschaft fuer Schwerionenforschung mbH
    Inventors: Thomas Haberer, Michael Kraemer, Gerhard Kraft, Wilma Kraft-Weyrather, Dieter Schardt, Michael Scholz, Ulrich Weber, Aleksiy Dolinski, Hartmut Eickhoff, Bernhard Franczak, Udo Krause, Juergen Klabunde, Ludwig Dahl, Marius Pavlovic, Ulrich Ratzinger, Bernhard Schlitt, Joerg Pawelke, Rainer Hinz, Wolfgang Enghardt