Patent · US Active

Magnetic resonance apparatus with a superconducting basic field magnet with an electrically conductive coating on the outer vacuum chamber

US7692426B2 · kind B2 · utility

2Cited by

5References

9Claims

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	Apr 6, 2010
Priority date	—
Expiry date	May 16, 2028

Classification

Technology area (CPC G)Physics
CPC primaryG01R33/3854
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

In an arrangement with a basic field magnet and with 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 outer vacuum chamber has an additional coating with a high electrical conductivity.

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