Electricity: measuring and testing – Particle precession resonance – Spectrometer components
Patent
1998-11-25
2000-04-11
Arana, Louis
Electricity: measuring and testing
Particle precession resonance
Spectrometer components
324322, G01V 300
Patent
active
060492074
ABSTRACT:
A method of designing a shielded gradient coil assembly (22) for magnetic resonance imaging systems is provided. The gradient coil structure comprises two sets of primary gradient coils (60, 62) and a single set of a shielded (screening) coils (64). This configuration is suitable for MR applications utilizing a double duty gradient configuration including a high-efficiency primary coil set that enhances the performance of ultra fast MR sequencing while minimizing the dB/dt and eddy current effects, and including a low-efficiency primary coil set having a high-quality gradient field that is suitable for conventional imaging applications with inherently low dB/dt and eddy current levels. In addition, a minimum inductance/energy algorithm assists in the design of the two primary and the one secondary gradient sets.
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Arana Louis
Picker International Inc.
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