Patent · US Active

Magnetic resonance apparatus having a superconducting basic field magnet with a structurally reinforced cryoshield

US7535225B2 · kind B2 · utility

4Cited by

5References

7Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Peter Dietz · Bad Mergentheim, DE
Andreas Krug · Bad Mergentheim, DE
Mark James Le Feuvre · Abingdon, GB
Annette Lohfink · Erlangen, DE
Thorsten Speckner · Erlangen, DE

Key dates

Filing date	Feb 21, 2008
Grant date	May 19, 2009
Priority date	—
Expiry date	Feb 21, 2028

Classification

Technology area (CPC G)Physics
CPC primaryG01R33/385
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

In an arrangement of a basic field magnet and a gradient coil of a magnetic resonance apparatus, the basic field magnet includes superconducting coils that are arranged in a reservoir with liquid helium for cooling. The helium reservoir is surrounded by a further reservoir, designated as an outer vacuum chamber. A vacuum exists between the outer vacuum chamber and the helium reservoir. A cryoshield is arranged between the outer vacuum chamber and the helium reservoir. The gradient coil is arranged in the inner chamber of the basic field magnet. The cryoshield has additional structure for reinforcement that counteract vibrations of the cryoshield.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.