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5. Other radiation tomography
Although many people think of tomography as a technique associated with the use of X-rays as a source of radiation, the method is first and foremost a technique for reconstructing data acquired through radiation-matter interaction. It can therefore be adapted to all types of radiation, as diverse and varied as neutrons, beta or gamma radiation, ultrasound or magnetic fields. As the principles described in this handbook for X-ray tomography apply to all types of radiation, we describe below a number of tomography methods that do not compete with X-ray tomography, but are complementary in terms of their fields of investigation.
5.1 Gamma tomography
Its principle is that of transmission tomography. It is often referred to as active tomography
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Other radiation tomography
Comparison with other NDT methods
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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