Tomographic calibration apparatus
US4613754A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 1983 |
| Grant date | Sep 23, 1986 |
| Priority date | — |
| Expiry date | Dec 29, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2223/419
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.