US PATENT SUBCLASS 378 / 28
.~ Xeroradiography

Current as of: June, 1999
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378 /   HD   X-RAY OR GAMMA RAY SYSTEMS OR DEVICES

1  DF  SPECIFIC APPLICATION {14}
28.~ Xeroradiography {5}
29  DF  .~.~> With real time display
30  DF  .~.~> With focused gap field
31  DF  .~.~> With auxiliary electrode
32  DF  .~.~> With uniform charging of image receptor
33  DF  .~.~> With gap fluid handling

DEFINITION

Classification: 378/28

Xeroradiography:

(under subclass 1) Subject matter including a detector upon which a latent image in the form of a pattern of electric charges is produced by action of x-radiation or gamma radiation.

(1) Note. The detector usually includes (a) a pair of spaced imaging electrodes defining an imaging gap therebetween, (b) an image receptor sheet lying within the

gap between the electrodes, (c) an imaging fluid filling the remaining space between the electrodes, and (d) an enclosing chamber. By applying a charge across the electrodes and ionizing the fluid through irradiation, charges will be removed from or deposited upon the image receptor sheet.

SEE OR SEARCH CLASS

250, Radiant Energy,

324+, for apparatus for or the method of corona irradiation to charge the detector without subsequent altering of the charge.

399, Electrophotography,

9+, for diagnostics, subclasses 38+ for controls, subclasses 130+ for image formation, subclasses 168+ for charging, subclasses 177+ for exposure, subclasses 222+ for development, subclasses 297+ for transfer, subclasses 320+ for fixing, subclasses 343+ for cleaning, and subclasses 361+ for document handling. 430, Radiation Imagery Chemistry: Process, Composition, or Product Thereof,

966+, for cross-reference art collections of disclosures relating to X-ray imagery.