Magnetic resonance cell

Details Magnetic resonance cell Magnetic resonance cell

1981-10-02

1984-05-01

Tokar, Michael J.

Electricity: measuring and testing

Particle precession resonance

Using optical pumping or sensing device

324301, G01R 3308

Patent

active

044464282

ABSTRACT:
There is disclosed a nuclear magnetic alignment device for use in a nuclear magnetic resonance gyroscope and the like. One embodiment includes a container for gas having a layer of rubidium hydride on its inner surface. The container comprising a spherical portion and a tip portion, is rotationally symmetric about an axis of symmetry. Enclosed within the container is a nuclear moment gas having a nuclear electric quadrupole moment, such as xenon-131, and an optically pumpable substance, such as rubidium. A portion of the rubidium is a vapor. The remainder is a condensed pellet which is deposited in the tip of the container such that the pellet is also rotationally symmetric about the axis of symmetry of the container. A layer of rubidium hydride is deposited on the inner surface of the container. The device further includes means for orienting the symmetry axis of the container at an angle to an applied magnetic field such that the relaxation time constant of the aligned nuclear moment gas is substantially at a maximum.

REFERENCES:
patent: 3252081 (1966-05-01), Ruddock et al.
patent: 3267360 (1966-08-01), Dehmelt
patent: 3381214 (1968-04-01), Exworthy
patent: 3500176 (1970-03-01), Kastler et al.
patent: 4157495 (1979-06-01), Grover

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