NMR radio frequency coil with dielectric loading for improved fi

Details NMR radio frequency coil with dielectric loading for improved fi NMR radio frequency coil with dielectric loading for improved fi

1990-01-19

1991-05-21

Tokar, Michael J.

Electricity: measuring and testing

Particle precession resonance

Spectrometer components

324318, G01R 3320

Patent

active

050178725

ABSTRACT:
An RF coil assembly for an NMR instrument includes a cylindrical coil surrounded by a cylindrical shield. The annular space between the coil and the shield is filled with a dielectric material having a relative permittivity selected to improve the RF field homogeneity in the radial direction.

REFERENCES:
patent: 4506224 (1985-03-01), Krause
patent: 4680548 (1987-07-01), Edelstein et al.
patent: 4799016 (1989-01-01), Rezvani
patent: 4887039 (1989-12-01), Roemer et al.
Glover et al., "Comparison of Linear and Circular Polarization for Magnetic Resonance Imaging", Journal of Magnetic Resonance 64, 255-270 (1985).

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