Electricity: measuring and testing – Particle precession resonance – Spectrometer components
Reexamination Certificate
2006-12-20
2008-11-04
Arana, Louis M (Department: 2831)
Electricity: measuring and testing
Particle precession resonance
Spectrometer components
C324S318000
Reexamination Certificate
active
07446534
ABSTRACT:
RF electric fields produced by electric potential differences in the NMR probe coil windings may penetrate the NMR sample and sample tube causing sensitivity loss and increased noise in NMR spectroscopy. Electrically conducting strips in close proximity to the windings of the NMR probe coil and oriented at right angles to direction of the coil winding they cross provide an alternative path for these electric fields while causing negligible effect upon the RF magnetic field, thereby increasing the sensitivity of the NMR probe.
REFERENCES:
patent: 4633181 (1986-12-01), Murphy-Boesch et al.
patent: 4785246 (1988-11-01), Sugimoto
patent: 5192911 (1993-03-01), Hill et al.
patent: 5262727 (1993-11-01), Behbin et al.
patent: 5565778 (1996-10-01), Brey et al.
patent: 5594342 (1997-01-01), Brey et al.
patent: 5619140 (1997-04-01), Brey et al.
patent: 6054856 (2000-04-01), Garroway et al.
patent: 6498487 (2002-12-01), Haner
patent: 2002/0140425 (2002-10-01), Prammer et al.
patent: 2005/0146331 (2005-07-01), Flexman et al.
Article by Hoult, DI, entitled “The Sensitivity of the Zeugmatographic Experiment Involving Human Samples”, published by Journal of Magnetic Resonance, 34, pp. 425-433, (1979).
Article by Gadian, et al., entitled “Radiofrequency Losses in NMR Experiments on Electrically Conducting Samples”, published by Journal of Magnetic Resonance, 34, pp. 449-455, (1979).
Article by Alderman, et al., entitled “An Efficient Decoupler Coil Design which Reduces Heating in Conductive Samples in Superconducting Spectrometers”, published by Journal of Magnetic Resonance, 36, pp. 447-451. (1979).
PCT/US2007/025564, International Search Report, mailed Apr. 14, 2008, 3 pp.
Arana Louis M
Bella Fishman
Varian Inc.
LandOfFree
Cold normal metal and HTS NMR probe coils with electric... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cold normal metal and HTS NMR probe coils with electric..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cold normal metal and HTS NMR probe coils with electric... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4027713