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6. Comparison with other NDT methods
A young non-destructive testing technique compared with the other main methods used in industry, tomography has its origins in the medical field, where it has revolutionized diagnostic aids.
Unlike radiography or gammagraphy, to which it can easily be compared, tomography enables the interior of an object, material or structure to be visualized and, above all, located in 3D. X-ray tomography can therefore easily replace "global" NDT methods, which only provide partial 2D projections of the singularities being sought. By providing local internal data on virtual cross-sections, X-ray tomography rapidly and very precisely provides information that was previously lacking in terms of perfect knowledge of the interior of materials and parts.
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Comparison with other NDT methods
Conclusion
Bibliography
Software tools
Societe DIGISENS – 3D tomography software http://www.digisens3d.com
Events
Industrial Computerized Tomography – ASNT July 25-27, 1989 Seattle WA (USA)
Industrial Symposium on computerized Tomography for Industrial Applications – DGZFP-BAM June 08-10, 1994 Berlin (Germany)
Digital Industrial Radiology and Computed Tomography DIR 2007 – INSA Lyon
Standards and norms
- Non-destructive testing – Radiation technology-computerized tomography – Part 2: Examination practice - ISO 15708-2 - 2002
- Non-destructive testing – Radiation methods. Computerized tomography – Part 1: Terminology – Part 2: Principles, equipment and samples – Part 3: Operation and interpretation –Part 4: qualification - NF EN1016 -
Patents
Tomographic image reconstruction process – EP 1356433 A1 10/29/2003
Computer tomography apparatus – EP 0037151 A2 07/10/1981
Apparatus and method for optical coherence tomography and combined detection EP 18338212 A1 03/10/2007
Directory
Manufacturers – Suppliers – Distributors (non-exhaustive list)
ZEISS – Carl Zeiss industrielle Messtechnik GmbH (Germany)
LOT – Quantum Design GmbH (Germany) – Micro XCT 200 and 400 models
YXLON International GmbH ( Germany) – 3D tomographer
IC ESCOFFIER – Compact tomography cabins at 225 or 450 kV with diode arrays or amorphous silicon flat...
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