Gesellschaft Fuer Schwerionenforschung Mbh

Gsi Helmholtzzentrum Fur Schwerionenforschung Gmbh

Klaus Poppensieker

Thomas Haberer

Eugen Badura

Wolfgang Ott

Holger Brand

Dieter Schardt

Hartmut Eickhoff

Hans-Georg Essel

Bernd Voss

Sven Oliver Groezinger

Jakob Naumann

Wolfgang Becher

Jan Hoffmann

The invention relates to an apparatus and method for compensation of three-dimensional movements of a target volume () during ion beam irradiation. For the purpose, the apparatus comprises a position location and tracking system () for detecting the movements and a depth modulator () for modifying the depth of penetration of the ion beam. For the purpose of compensation, the movements are divided vectorially into a transverse component and a longitudinal component. The transverse component is compensated from irradiation point to irradiation point using the raster scanning apparatus () and the longitudinal component is compensated from irradiation point to irradiation point using the depth modulator () by means of the fact that, in addition to the change in the location of the target volume, the change in the structure of healthy tissue covering the target volume is, in the preliminaries to irradiation, detected and modelled and stored in the form of a look-up table in a memory of a movement measurement, control and read-out module SAMB and compared with the actual values during irradiation.

Apparatus and method for compensation of movements of a target volume during ion beam irradiation

The invention relates to a beam allocation apparatus () for medical particle accelerators and also to a beam allocation method. This beam allocation apparatus () should manage a plurality of control rooms (-) for different treatment rooms and for quality assurance rooms and control rooms for the particle accelerator () and co-ordinate the assignment of beam sovereignty. For the purpose, the beam allocation apparatus () has an arbitration unit () having switching logic () and monitoring unit () and also a sequence control (). The latter are provided, by way of signal lines (), with a spill abort system () for aborting ion beam irradiation within micro-seconds. For the purpose, the spill abort system () has at least one spill abort magnet (). For the purpose, the beam allocation apparatus () provides direct access from one of the control room (-) of the irradiation-active treatment room for aborting the particle beam within micro-seconds.

Beam allocation apparatus and beam allocation method for medical particle accelerators

The invention relates to a method of checking the beam generation means and beam acceleration means of an ion beam therapy system that comprises a grid scanner device, arranged in a beam guidance system, having vertical deflection means and horizontal deflections means for the vertical and horizontal deflection of a treatment beam perpendicular to its beam direction, with the result that the treatment beam is deflected by the grid scanner device to an isocentre of the irradiation site, and a specific area surrounding the isocentre is scanned, wherein the type of ion, the ion beam energy, the ion beam intensity and the blocking of the accelerator and also the means for terminating extraction are checked.

Method for checking beam generation and beam acceleration means of an ion beam therapy system

The invention relates to a method of checking the beam guidance of an ion beam therapy system that comprises a grid scanner device, arranged in a beam guidance system ( ), having vertical deflection means ( ) and horizontal deflection means ( ) for the vertical and horizontal deflection of a treatment beam ( ) perpendicular to its beam direction, with the result that the treatment beam ( ) is deflected by the grid scanner device to an isocentre ( ) of the irradiation site, and a specific area surrounding the isocentre ( ) is scanned, wherein redundancy means are used for a redundant termination of extraction and their functionality is checked and checking of the ability of beam guidance dipoles in the beam guidance to connect and disconnect is carried out.

Method for checking beam steering in an ion beam therapy system

The invention relates to a method of checking the calculated &lsqb;sic&rsqb; irradiation control unit of an ion beam therapy system which comprises a raster scanning device arranged in a beam guidance system and having vertical deflection means and horizontal deflection means for the vertical and horizontal deflection of a treatment beam at right angles to its beam direction, so that the treatment beam is deflected by the raster scanning device onto an isocenter of the irradiation station and scans a specific area surrounding the isocenter, data sets and permanently stored data of a control computer, parameters of measuring sensors and desired current values of scanner magnets being checked.

Method for monitoring the irradiation control unit of an ion-beam therapy system

The invention relates to a method of checking emergency shutdown of an ion beam therapy system which comprises a raster scanning device arranged in a beam guidance system and having vertical deflection means and horizontal deflection means for the vertical and horizontal deflection of a treatment beam at right angles to its beam direction, so that the treatment beam is deflected by the raster scanning device onto an isocenter of the irradiation station and scans a specific area surrounding the isocenter, a check of emergency shutdown being carried out.

Method for monitoring an emergency switch-off of an ion-beam therapy system

An arrangement and a method for controlling a radiation device, in particular for heavy ion therapy, are described. The arrangement comprises a chain of circuit modules ( ), each circuit module ( ) having a separate communication connection to a preceding circuit module and a separate communication connection to a following circuit module. In the method for controlling the radiation device by means of control modules ( ) arranged in a chain, each control module ( ) communicates separately with a preceding control module and separately with a following control module.

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Darmstadt, Germany

Klaus Poppensieker