Non-destructive testing apparatus and process with simultaneous

Details Non-destructive testing apparatus and process with simultaneous Non-destructive testing apparatus and process with simultaneous

1991-10-18

1992-11-17

Porta, David P.

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

378 8, 378 19, 378901, A61B 603

Patent

active

051649713

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.

REFERENCES:
patent: 4852131 (1989-07-01), Armistead
patent: 5023895 (1991-06-01), McCroskey et al.
patent: 5068882 (1991-11-01), Eberhard
patent: 5073910 (1991-12-01), Eberhard et al.
Patent Abstract-Industrial CT Scanner-Japan-61-28850(A)-Feb. 8, 1986.

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