Radio-frequency shield for a diagnostic magnetic resonance apparatus

US6232548A · kind A · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Ludwig Eberler · Dresden, DE
• Juergen Nistler · Erlangen, DE

Key dates

• Filing date: Sep 22, 1999
• Grant date: May 15, 2001
• Expiry date: Sep 22, 2019

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R33/422
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A radio-frequency shield for a diagnostic magnetic resonance apparatus has a hollow-cylindrical carrier composed of a dielectric, a first electrically conductive coating arranged at an inside of the carrier and provided with axially aligned separating slots, and A second electrically conductive coating arranged at an outside of the carrier and provided with axially aligned separating slots. The separating slots in the first and second coatings, respectively, are offset relative to one another in a circumferential direction. The first coating has slotted end regions at the ends of the carrier and at least one slofted middle region between the end regions. The separating slots arranged in the end regions are transverse slots that are arranged at axially inwardly disposed ends of the separating slots.