Capacitively shortened coaxial resonators for nuclear magnetic r

Details Capacitively shortened coaxial resonators for nuclear magnetic r Capacitively shortened coaxial resonators for nuclear magnetic r

1982-05-17

1984-07-31

Gensler, Paul L.

Wave transmission lines and networks

Resonators

Coaxial or shielded

324321, 324316, 333223, H01P 704, G01R 3308

Patent

active

044633289

ABSTRACT:
A capacitively shortened coaxial resonator for making nuclear magnetic resonance measurements includes inner and outer concentrically arranged metal cylinders. The cylinders define therebetween a sample region and are shorted electrically by a conductive cap which closes one end of the inner and outer cylinders. A capacitor is connected across the cylinders at the opposite open end and functions to resonate with the inductance of a coaxial conductor formed by the short circuited cylinders. Samples placed in the sample region are mounted on an air bearing and rotated by means of air holes formed in the inner and outer cylinders.

REFERENCES:
patent: 934714 (1909-09-01), Denieport
patent: 2201199 (1940-05-01), Peterson
patent: 3242427 (1966-03-01), Kagan
patent: 3402346 (1968-09-01), Baker
patent: 3434043 (1969-03-01), Nelson
patent: 3681683 (1972-08-01), Haber
patent: 3771055 (1973-11-01), Anderson
patent: 3811101 (1974-05-01), Kamp
patent: 4275350 (1981-06-01), Hill et al.
Capacitively and Inductively Foreshortened Cavities for Magnetic Resonance Spectroscopy, B. D. Guenther et al., The Review of Scientific Instruments, vol. 42, No. 4, Apr. 1971, pp. 431-434.
Comparative Study of Different Types of Resonance Volumes at Meter Wavelengths for Electronic Paramagnetic Resonance Spectrometers, M. Decorps, et al., Journal of Scientific Instruments, (Journal of Physics I), 1969, Series 2, vol. 2, (French article and translation thereof).

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