Electricity: measuring and testing – Particle precession resonance – Using optical pumping or sensing device
Reexamination Certificate
2007-03-20
2007-03-20
Gutierrez, Diego (Department: 2859)
Electricity: measuring and testing
Particle precession resonance
Using optical pumping or sensing device
C335S296000, C335S299000, C335S306000
Reexamination Certificate
active
11321377
ABSTRACT:
A ferromagnetic lens in the presence of a DC magnetic field and a smaller AC magnetic field creates a localized minimum of the magnitude of the magnetic field vector of the combined magnetic field in a volume defined in free space away from the lens referred to as the focus volume. The localized minimum can be nonzero, and can create conditions for spin resonance in the focus volume. The focus volume defined in free space away from the lens can be very small, providing excellent resolution for magnetic resonance imaging, for example.
REFERENCES:
patent: 3708772 (1973-01-01), Le Franc
patent: 4057748 (1977-11-01), Davis
patent: 5617024 (1997-04-01), Simpson et al.
patent: 5696476 (1997-12-01), Havens et al.
patent: 6078872 (2000-06-01), Carson et al.
patent: 6081119 (2000-06-01), Carson et al.
Damadian, Raymond et al. “Field Focusing Nuclear Magnetic Resonance (FONAR): Visualization of a Tumor in a Live Animal”Science, New Series, vol. 194, No. 4272 Dec. 24, 1976.
Drndic, M. et al. “Micro-electromagnets For Atom Manipulation” Applied Physics Letters vol. 72, No. 22 Jun. 1, 1998.
Halbach, Klaus “Application Of Permanent Magnets In Accelerators And Electron Storage Rings (Invited)” J. Appl. Phys. 57 (1), Apr. 15, 1985.
Hinshaw, Waldo S. “Image Formation By Nuclear Magnetic Resonance: The Sensitive-Point Method*” Journal of Applied Physics, vol. 47, No. 8, Aug. 1976.
Weinstein, J.D., and K.G. Libbrecht “Microscopic Magnetic Traps For Neutral Atoms” Physical Review A vol. 52, No. 5 Nov. 1995.
Barbic Mladen
Sherer Axel
California Institute of Technology
Greer Burns & Crain Ltd.
Gutierrez Diego
Vargas Dixomara
LandOfFree
Magnetic lens, method and focus volume imaging MRI does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Magnetic lens, method and focus volume imaging MRI, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic lens, method and focus volume imaging MRI will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3749666