Shielded compartment for a magnetic resonance apparatus

• US 20030016518A1
• Filed: 07/16/2002
• Published: 01/23/2003
• Est. Priority Date: 07/16/2001
• Status: Active Grant

• Current Assignee: Siemens AG
• Original Assignee: Siemens AG
• Inventors: Arz, Winfried
• Granted Patent: US 6,882,547 B2
• Time in Patent Office: Days
• US Class Current: 361/818
• CPC Class Codes: G01R 33/3854 means for active and/or passive vibration damping or acoustical noise suppression in gradient magnet coil systems
• CPC Class Codes: G01R 33/422 of the radio frequency field
• CPC Class Codes: H05K 9/0001 Rooms or chambers anechoic chambers G01R29/0821

Abstract

A shielded compartment for a magnetic resonance apparatus for shielding electromagnetic radio-frequency fields has at least one region that is formed of a foamed metal.

Claims

1. A shielded compartment for a magnetic resonance apparatus comprising:

an enclosure having an interior and an exterior for shielding electromagnetic radio-frequency fields between said interior and said exterior; and

said enclosure having at least one region formed of a foamed metal.

2. A shielded compartment as claimed in claim 1 wherein said foamed metal shields said radio-frequency fields.

3. A shielded compartment as claimed in claim 1 wherein said foamed metal, in addition to fielding said radio-frequency fields, shields transmission of at least one further quantity between said interior and said exterior.

4. A shielded compartment as claimed in claim 3 wherein said further quantity is selected from the group consisting of sound and heat.

5. A shielded compartment as claimed in claim 3 wherein said at least one region is selected so that said further quantity is effectively shielded in at least one direction between said interior and said exterior.

6. A shielded compartment as claimed in claim 1 wherein said foamed metal comprises an aluminum foam.

7. A shielded compartment as claimed in claim 1 wherein said foamed metal comprises a plurality of plates connectable to each other.

8. A shielded compartment as claimed in claim 1 wherein said region comprises a surface of said enclosure selected from the group consisting of a wall, a ceiling and a floor.

9. A shielded compartment as claimed in claim 1 wherein said enclosure is self-supporting.

10. A shielded compartment as claimed in claim 1 wherein said enclosure is climate-controlled.