Magnetic resonance apparatus with compensation of fields...

Details Magnetic resonance apparatus with compensation of fields... Magnetic resonance apparatus with compensation of fields...

2005-01-18

2005-01-18

Arana, Louis (Department: 2859)

Electricity: measuring and testing

Particle precession resonance

Spectrometer components

C324S322000

Reexamination Certificate

active

06844733

ABSTRACT:
A magnetic resonance apparatus has a magnetic resonance scanner that includes a gradient coil for generating a gradient field, the scanner also has an electrically conductive structure that at least partially envelops the gradient coil, this structure, triggered by a change in the current in the gradient coil, generating an eddy current field having at least one component that compensates for at least one non-linear component of the gradient field within the imaging volume of the scanner, and further has a compensation coil connected in series with the gradient coil and disposed between the gradient coil and the electrically conductive structure, the compensation coil generating a magnetic field that, within the imaging volume, has no linear component and compensates at least for the non-linear component of the gradient field.

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