X-Ray collimator, particularly for use in computerized axial tom

Details X-Ray collimator, particularly for use in computerized axial tom X-Ray collimator, particularly for use in computerized axial tom

1977-08-18

1981-07-07

Smith, Alfred E.

Radiant energy

Inspection of solids or liquids by charged particles

Analyte supports

250513, G01N 2100

Patent

active

042776848

ABSTRACT:
An X-ray collimator for use in computerized axial tomography apparatus includes a plurality of substantially parallel X-ray absorbing laminae disposed in the plane of a wedge-shaped X-ray beam. The length and position of each lamina with respect to a divergent X-ray source is chosen to maximize the ratio of X-ray flux impinging upon a detector array to flux falling within the collimator's penumbra, outside the detector array.
A single set of moveable jaws may be disposed at the collimator exit for adjustment of the beam thickness.

REFERENCES:
patent: 2492031 (1949-12-01), Blatz
patent: 3428802 (1969-02-01), Mehta et al.
patent: 4066901 (1978-01-01), Seppi et al.
patent: 4096389 (1978-06-01), Ashe et al.

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