Gradient coils having increased performance and decreased power

Details Gradient coils having increased performance and decreased power Gradient coils having increased performance and decreased power

1996-07-23

1997-09-02

Arana, Louis M.

Electricity: measuring and testing

Particle precession resonance

Spectrometer components

324318, G01V 300

Patent

active

056636482

ABSTRACT:
A gradient coil specifically designed to enhance the performance of Magnetic Resonance (MR) imaging and spectroscopy. In particular, the construction of gradient coils for use with resonant gradient power supplies to provide the necessary performance (large electromagnetic fields that can activated and deactivated rapidly) required in MR systems. These gradient coils require considerably less power than those presently employed for comparable performance and provide considerably more performance with existing power supplies. These coils are characterized by having a higher inductance than existing gradients of comparable size. Examples are given for the use of the invention in providing linear axial gradient field via a standard Maxwell gradient coil, with comparisons with existing coils.

REFERENCES:
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patent: 5245287 (1993-09-01), Nowak et al.
patent: 5266913 (1993-11-01), Chapman
patent: 5298863 (1994-03-01), Nowak et al.
patent: 5311136 (1994-05-01), Takahashi
patent: 5325060 (1994-06-01), Mansfield et al.
Turner, Minimum Inductance Coils, 1988, pp. 948-953.
Chapman, et al., Jour. of Magnet. Reson., series B 107, pp. 152-157 (1995).
Chapman, et al., Meas. Sci. Technolo., vol. 6, pp. 349-354 (1995).
Tootell, et al., Nature, vol. 375, pp. 139-141 (May 11, 1995).

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