Radiographic apparatus with correction for radiation hardness va

Details Radiographic apparatus with correction for radiation hardness va Radiographic apparatus with correction for radiation hardness va

1977-05-03

1978-10-03

Smith, Alfred E.

Radiant energy

Inspection of solids or liquids by charged particles

Analyte supports

250360, A61B 602

Patent

active

041186281

ABSTRACT:
In a radiographic apparatus employing a fan-shaped spread of penetrating radiation the nature of the source can cause the energy spectrum of the radiation to be variable with position in the fan. Means are provided to modify output signals from the apparatus to correct for errors caused by such variations. The modifying factors required can be calculated or can be determined using a phantom body by a method which is described.

REFERENCES:
patent: 3866047 (1975-02-01), Hounsfield
patent: 3881110 (1975-04-01), Hounsfield et al.
patent: 4044260 (1977-08-01), Hounsfield

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