Isokinetic gantry arrangement for the isocentric guidance of a particle beam and a method for constructing same

US6897451B2 · kind B2 · utility

Assignees

• MAN Technologie AG · DE
• Gesellschaft fuer Schwerionenforschung mit beschraenkter Haftung · DE

Inventors

• Hans Kaercher · Karben, DE
• Stefan Linn · Runkel, DE
• Thomas Zimmerer · Mainz, DE
• Dietmar Koch · Gummersbach, DE
• Ralf Fuchs · Stolberg, DE
• Walter Bourgeois · Heidelberg, DE
• Peter Spiller · Wetzikon, CH

Key dates

• Filing date: Sep 5, 2003
• Grant date: May 24, 2005
• Expiry date: Sep 5, 2023

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61N5/10
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

The invention relates to an isokinetic gantry arrangement for the isocentric guidance of a particle beam (12), that can be rotated about a horizontal longitudinal axis (16) and has a beam optical system, symbolized by magnets (36, 38, 40), that deflects the particle beam (12) axially infected by a particle beam accelerator, radially and vertically relative to the horizontal longitudinal axis (16), with a largely rotationally-symmetrical primary structure (18) and a secondary structure (30) that holds the magnets (36, 38, 40) and is supported by the primary structure (18), with the secondary structure (30) having a rigidity that is designed so that the vertical displacements of the magnets (36, 38, 40) due to their weight are essentially of equal magnitude (isokinetic) in all the angle of rotation positions of the gantry arrangement (10), and a method for its design.