Adjustable compensating device for radiographic apparatus

Details Adjustable compensating device for radiographic apparatus Adjustable compensating device for radiographic apparatus

1977-12-30

1980-01-01

Church, Craig E.

Radiant energy

Inspection of solids or liquids by charged particles

Analyte supports

250510, G03B 4116

Patent

active

041818580

ABSTRACT:
In computerized tomography (CT) apparatus it is usual to rotate a source of radiation about a body which, with associated support, is approximately circular in cross-section. Compensation, for unequal radiation paths through such a circular cross-section body, can be compensated by suitably shaped attenuating masses. This invention provides such masses which are relatively movable, in response to an optical detector system, to adjust for different body sizes. Each mass extends right across the radiation spread so that no discontinuities a rise for particular relative positions of the two masses.

REFERENCES:
patent: 2225940 (1940-12-01), Grossmann
patent: 3717768 (1973-02-01), Edholm
patent: 3755672 (1973-08-01), Edholm
patent: 3778614 (1973-12-01), Hounsfield
patent: 3946234 (1976-03-01), Hounsfield

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