Electricity: measuring and testing – Particle precession resonance – Spectrometer components
Patent
1983-03-28
1986-05-20
Tokar, Michael J.
Electricity: measuring and testing
Particle precession resonance
Spectrometer components
324311, G01R 3320
Patent
active
045904278
ABSTRACT:
An improved nuclear magnetic resonance (NMR) apparatus for use in topical magnetic resonance (TMR) spectroscopy and other remote sensing NMR applications includes a semitoroidal radio-frequency (rf) coil. The semitoroidal rf coil produces an effective alternating magnetic field at a distance from the poles of the coil, so as to enable NMR measurements to be taken from selected regions inside an object, particularly including human and other living subjects. The semitoroidal rf coil is relatively insensitive to magnetic interference from metallic objects located behind the coil, thereby rendering the coil particularly suited for use in both conventional and superconducting NMR magnets. The semitoroidal NMR coil can be constructed so that it emits little or no excess rf electric field associated with the rf magnetic field, thus avoiding adverse effects due to dielectric heating of the sample or to any other interaction of the electric field with the sample.
REFERENCES:
patent: Re23769 (1954-01-01), Varian
patent: 1594273 (1926-07-01), Sateren
patent: 2561489 (1951-07-01), Bloch
patent: 2856579 (1958-10-01), Packard
patent: 2999978 (1961-09-01), Pinkley
patent: 3030571 (1962-04-01), Dessler
patent: 3109138 (1963-10-01), Varian
patent: 3238484 (1966-03-01), Dacey
patent: 3242424 (1966-03-01), Redfield
patent: 3287630 (1966-11-01), Gang
patent: 3350632 (1967-10-01), Robinson
patent: 3427532 (1969-02-01), Nelson
patent: 3502963 (1970-03-01), Hlavka
patent: 3795855 (1974-03-01), Browning
patent: 3805768 (1974-04-01), Barefoot
patent: 3886440 (1975-05-01), Berry et al.
patent: 3932805 (1976-01-01), Abe
patent: 3938018 (1976-02-01), Dahl
patent: 4056097 (1977-11-01), Maass
patent: 4095168 (1978-06-01), Hlavka
patent: 4206391 (1980-06-01), Varacins
patent: 4379262 (1983-04-01), Young
R. K. Cooper and J. A. Jackson, "Remote (Inside-Out) NMR. I. Remote Production of a Region of Homogeneous Magnetic Field," Journal of Magnetic Resonance, 41, 400-405 (1980).
L. J. Burnett and J. A. Jackson, "Remote (Inside-Out) NMR. II. Sensitivity of NMR Detection for External Samples," Journal of Magnetic Resonance, 41, 406-410.
J. A. Jackson et al., "Remote (Inside-Out) NMR. III. Detection of Nuclear Magnetic Resonance in a Remotely Produced Region of Homogeneous Magnetic Field," Journal of Magnetic Resonance, 41, 411-421 (1980).
R. E. Gordon et al., "Topical Magnetic Resonance," in Progress in Nuclear Magnetic Resonance Spectroscopy, Oxford Research Systems Ltd., 15, No. 1, pp. 1-47, (Pergamon Press 1982).
J. J. H. Ackerman et al., "Mapping of Metabolites in Whole Animals by .sup.31 p NMR Using Surface Coils," Nature, 283, 167-170 (Jan. 10, 1980).
R. G. Shulman, "NMR Spectroscopy of Living Cells," Scientific American, pp. 86-93 (Nov. 1982).
Assink Roger A.
Fukushima Eiichi
Gibson Atholl A. V.
Roeder Stephen B. W.
Eklund William A.
Gaetjens Paul D.
Hightower Judson R.
The United States of America as represented by the United States
Tokar Michael J.
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