Tube array coil for quadrupole resonance (QR) scanning

Details Tube array coil for quadrupole resonance (QR) scanning Tube array coil for quadrupole resonance (QR) scanning

2005-01-25

2005-01-25

Shrivastav, Brij (Department: 2859)

Electricity: measuring and testing

Particle precession resonance

C324S307000

Reexamination Certificate

active

06847208

ABSTRACT:
An inspection system including a radio frequency (RF) subsystem and a quadrupole resonance (QR) tube array coil. The RF subsystem may include a variable frequency RF source to provide RF excitation signals at a frequency generally corresponding to predetermined, characteristic QR frequencies of a specimen. The QR tube array coil may be implemented using a plurality of conductive tubes defining a cavity of predetermined volume. Typically, the plurality of conductive tubes are spaced at a distance relative to one another to form at least two non-conductive gaps between tubes in the array. After RF excitation signals are applied to the specimen within the cavity, the QR tube array coil may generate a QR output signal responsive to QR signals generated by the specimen.

REFERENCES:
patent: 5592083 (1997-01-01), Magnuson et al.
patent: 5986455 (1999-11-01), Magnuson
patent: 6268724 (2001-07-01), Crowley
patent: 6288724 (2001-07-01), Kumar et al.
patent: 6291994 (2001-09-01), Kim et al.
patent: 6392408 (2002-05-01), Barrall et al.
patent: 6594338 (2003-01-01), Magnuson

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