US PATENT SUBCLASS 378 / 51
.~ Absorption

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

1  DF  SPECIFIC APPLICATION {14}
51.~ Absorption {7}
52  DF  .~.~> Fluid level measuring
53  DF  .~.~> Composition analysis
54  DF  .~.~> Thickness or density analysis {2}
57  DF  .~.~> Inspection of closed container
58  DF  .~.~> Flaw analysis {2}
62  DF  .~.~> Imaging {1}
64  DF  .~.~> Irradiating {3}

DEFINITION

Classification: 378/51

Absorption:

(under subclass 1) Subject matter including the measurement or analysis of X-rays that have passed through an object under examination to determine the attenuation or other change in X-ray characteristics resulting from the passage.

(1) Note. Although not specifically included within each of the following definitions, absorption systems usually include, (a) a source of X-rays or gamma rays, (b) an object under examination, (c) an object holder or positioning means, and (d) a detector of X-rays.

SEE OR SEARCH THIS CLASS, SUBCLASS:

3, for X-ray absorption involving the Mossbaurer effect.

SEE OR SEARCH CLASS

209, Classifying, Separating, and Assorting Solids, appropriate subclasses, especially

589, for radiant energy type automatic assorting.