Patent · US Active

Arrangement to adjust the homogeneity of a basic magnetic field

US7928731B2 · kind B2 · utility

0Cited by

5References

10Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Michael Eberler · Postbauer-Heng, DE
Andreas Krug · Bad Mergentheim, DE
Johann Schuster · Oberasbach, DE
Stefan Stocker · Großenseebach, DE

Key dates

Filing date	Apr 23, 2009
Grant date	Apr 19, 2011
Priority date	—
Expiry date	Oct 21, 2029

Classification

Technology area (CPC G)Physics
CPC primaryG01R33/3873
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

An arrangement for the adjustment of the homogeneity of a basic magnetic field in a magnetic resonance apparatus includes gradient coil support fashioned to support a gradient coil system. The gradient coil support has at least one channel that is fashioned to accommodate an associated shim tray. The shim tray is designed to accommodate ferromagnetic shim elements at predetermined positions in order to adjust the homogeneity of the basic magnetic field of the magnetic resonance apparatus. The shim tray has a first locking element coupled with it. The channel has a second locking element, and the first and second locking element are shaped such that both are positively connected with one another by a force produced by the basic magnetic field of the magnetic resonance apparatus upon activation thereof.

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