Switchable gradient coil system formed by saddle coils

US6545473B1 · kind B1 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Matthias Gebhardt · Erlangen, DE
• Heinz Hentzelt · Erlangen, DE
• Eva Eberlein · Baiersdorf, DE

Key dates

• Filing date: Apr 14, 2000
• Grant date: Apr 8, 2003
• Expiry date: Apr 14, 2020

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R33/3856
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A switchable gradient coil system is composed of saddle coils that can be operated respectively as primary coils or auxiliary coils. The auxiliary coils for one gradient axis, which exhibit a reduced subtended angle compared to the primary coils, are arranged in the gaps between coils that are arranged diametrically opposite each other in a radial plane for the other gradient axis.