Non-destructive testing apparatus and process with simultaneous acquisition of radiographic data and tomographic data
US5164971A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 1991 |
| Grant date | Nov 17, 1992 |
| Priority date | — |
| Expiry date | Oct 18, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S378/901
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Non-destructive testing apparatus and process with the simultaneous acquisition of radiographic data and tomographic data comprises a gamma or X-ray source-detector assembly (2-6), an object support (16) placed between the source and the detector, means (17) for ensuring at least one relative rotary movement of the support with respect to the source-detector assembly, the detector being a bidimensional detector supplying for each point of each radiographic projection an analog signal proportional to the radiation quantity transmitted by the object (4), an analog-digital converter (21) for converting the signals from the detector into digital data, a first memory (28) for storing said digital data, a system (30) for the extraction and accumulation of part of said stored data, corresponding to at least one particular zone of the object to be tested or examined, a second memory (32) for storing the sinograms obtained from the selected and accumulated data and a system for processing these sinograms in order to reconstruct the tomographic sections.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.