Multi-layer resonator for magnetic resonance applications with the resonator structure itself allowing equal magnitude current during active operation

US7579836B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Wilfried Schnell · Forchheim, DE
• Markus Vester · Koblenzer Straße, DE

Key dates

• Filing date: Jan 30, 2007
• Grant date: Aug 25, 2009
• Expiry date: Mar 6, 2027

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R33/3642
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A resonator for magnetic resonance applications has a conductor element proceeding in an extension direction, that operates with a resonance current at a resonance frequency oscillating therein in the extension direction. The conductor element is tuned to the resonance frequency and has an overall length in the extension direction that is smaller than half of the wavelength of the resonance frequency. The conductor element is a multi-layer conductor with layers that are electrically insulated from each other that, in said extension direction, have layer ends that are capacitively coupled with each other. During operation of the conductor element at the resonance frequency, respective layer currents flow in the layers in the extension direction that are substantially equal in magnitude.