Magnetic lens, method and focus volume imaging MRI

Details Magnetic lens, method and focus volume imaging MRI Magnetic lens, method and focus volume imaging MRI

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.

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