Abstract
A mathematical model has been developed for digital radiographic imaging of large-sized objects. The model takes account of scanning time, the parameters of source and recorder of bremsstrahlung due to the test object, and geometrical scanning scheme. A high-performance algorithm is proposed for the numerical modeling of digital radiographic images. The algorithm has allowed producing realistic images of large-sized stepped and wedge-shaped test objects and test objects typical of pipeline transport. The rationale for selecting the scanning time and the digit capacity of an analog-to-digital converter is demonstrated. Numerical simulation of radiographic images is shown to provide a basis for the correct choice of the parameters of digital radiography systems as applied to testing large objects.
Original language | English |
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Pages (from-to) | 136-149 |
Number of pages | 14 |
Journal | Russian Journal of Nondestructive Testing |
Volume | 55 |
Issue number | 2 |
DOIs | |
Publication status | Published - 1 Feb 2019 |
Keywords
- analog-to-digital converter digit capacity
- bremsstrahlung
- bremsstrahlung recorders
- digital radiography
- mathematical modeling
- sensitivity standards
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering