Electricity: measuring and testing – Particle precession resonance – Spectrometer components
Patent
1986-01-31
1988-01-26
Tokar, Michael J.
Electricity: measuring and testing
Particle precession resonance
Spectrometer components
324318, G01R 3320
Patent
active
047219157
ABSTRACT:
A high frequency antenna system for nuclear magnetic resonance tomography devices generates a substantially uniform magnetic high frequency field and receives high frequency signals, and includes two conductor members supplied with current of opposite polarity, the conductor members being of a selected length and extending along an imaginary cylinder parallel to the direction of the cylinder axis. Electrodes are provided at the end regions of the conductor members, the electrodes maintaining the electrical field generated at the ends of the current-supplied conductor members away from the examination chamber, and limiting the magnetic high-frequency field generated by the current-supplied conductor members substantially to the examination chamber between the electrodes.
REFERENCES:
patent: 4517516 (1985-05-01), Hill
patent: 4563648 (1986-01-01), Hill
patent: 4594566 (1986-06-01), Maudsley
patent: 4607225 (1986-08-01), Crooks
patent: 4616181 (1986-10-01), Kemner
patent: 4638253 (1987-01-01), Jaskolski
patent: 4641098 (1987-02-01), Doty
"Slotted Tube Resonator: A New NMR Probe Head at High Observing Frequencies," Schneider et al, Rev. Sci. Instrum., vol. 48, No. 1, Jan. 1977.
Siemens Aktiengesellschaft
Tokar Michael J.
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