Tomographic calibration apparatus

Details Tomographic calibration apparatus Tomographic calibration apparatus

1983-12-29

1986-09-23

Howell, Janice A.

Radiant energy

Calibration or standardization methods

378201, G01D 1800

Patent

active

046137548

ABSTRACT:
An apparatus for providing data for the calibration of the atomic number and density of a test material being scanned in the radiation field of a computerized axial tomographic scanner (CAT). The apparatus comprises a housing which is adapted to be positioned in the X-ray field of the CAT in a predetermined position. The housing has an aperture that is adapted to accommodate the test material, and a plurality of calibration materials which have known atomic numbers and densities are positioned in the housing. In addition, the present invention provides a calibration apparatus that has a surface that is adapted to accommodate the test material.

REFERENCES:
patent: 4029963 (1977-06-01), Alvarez et al.
patent: 4233507 (1980-11-01), Volz

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