Device and method for controlling a raster scanner in ion-beam therapy

US6677597B1 · kind B1 · utility

Assignee

• Gesellschaft für Schwerionenforschung mbH · DE

Inventors

• Thomas Haberer · Darmstadt, DE
• Wolfgang Ott · Antioch, US

Key dates

• Filing date: Mar 2, 2001
• Grant date: Jan 13, 2004
• Expiry date: Mar 2, 2021

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61N2005/1087
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

The invention relates to an apparatus and a method for the feedback control of a grid scanner in ion therapy. An apparatus of that kind for the feedback control of a grid scanner has scanner magnet current supply devices for ion beam scanner magnets that deflect horizontally and vertically with respect to the middle of the ion beam, the supply devices being controlled by control and read-out modules for the scanner magnets. Furthermore, the apparatus has a location-sensitive detector for location measurement, which is controlled by means of a control and read-out module. A sequence control device controls the activation and read-out sequence among the devices of the apparatus, the apparatus also having in the sequence control device a circuit arrangement having a feedback loop between the control and read-out modules for the scanner magnets and the control and read-out module of the location-sensitive detector. For that, the control and read-out modules for the scanner magnets and the control and read-out module of the location-sensitive detector in the sequence control device are technically so arranged, in circuitry and sequence, that the control and read-out modules for the scan…