Electricity: measuring and testing – Particle precession resonance – Spectrometer components
Patent
1997-11-07
2000-04-25
Arana, Louis
Electricity: measuring and testing
Particle precession resonance
Spectrometer components
324307, G01V 300
Patent
active
06054855&
ABSTRACT:
A method and apparatus which utilizes the hysteritic behavior of type II superconductors for reducing the effective magnetic susceptibility of high temperature superconducting materials used close to the sample region in nuclear magnetic system probes. The method is particularly applicable to receiver coils. Reducing the magnetic susceptibility of superconducting receiver coils enables the improved sensitivity they inherently provide to be realized without loss of resolution resulting from line broadening caused by susceptibility discontinuities of materials near the sample region of the probe.
REFERENCES:
patent: 5508613 (1996-04-01), Kotsubo et al.
patent: 5684401 (1997-11-01), Peck et al.
patent: 5689187 (1997-11-01), Marek et al.
Withers, et al., entitled "HTS Receiver Coils for Magnetic -Resonance Instruments", published in SPIE, Apr. 1994, vol. 2156, pp. 27-35.
Orlando and Delin, Addison Wesley Publishing Co., entitled "Foundations of Applied Superconductivity", 1990, Chap's 6 and 7, pp. 259-391.
Arana Louis
Varian Inc.
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