Truncated cone shaped surface resonator for nuclear magnetic resonance tomography

US4841249A · kind A · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Wilhelm Duerr · Erlangen, DE
• Hartwig Ingwersen · Uttenreuth, DE
• Norbert Krause · Bubenreuth, DE
• Ralph Oppelt · Uttenreuth, DE

Key dates

• Filing date: Oct 6, 1987
• Grant date: Jun 20, 1989
• Expiry date: Oct 6, 2007

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R33/343
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A surface resonator for use in nuclear magnetic resonance tomography is a single turn loop of ribbon-like electrical conductor having spaced ends facing each other which form a capacitor whose capacitance determines the resonant frequency. The loop of ribbon-like conductor is shaped to conform substantially to the generated surface of a truncated cone. The ends of the loop may be in the form of spaced plates for providing the necessary capacitance, or may be connected by one or more discrete component capacitors.