Abstract
The article describes a theoretical study of the simplified implementation of dual energy technique (DET) for computed tomography (CT). The implementation is based on the X-ray pre-filter. Two sets of projections, acquired for two maximal X-ray energies, are transformed to the projections of DET parameters. The density and effective atomic number of the test object fragments are estimated after a separate recovery of the internal structure of the test object for each of the DET parameters. The choice of pre-filter thickness is discussed. An example of the initial projections simulation and the estimation of the internal structure of cylindrical objects are shown.
Original language | English |
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Pages (from-to) | 63-69 |
Number of pages | 7 |
Journal | NDT and E International |
Volume | 98 |
DOIs | |
Publication status | Published - 1 Sep 2018 |
Keywords
- Computed tomography
- Dual energy technique
- Pre-filter X-ray tube
- X-ray radiation
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Mechanical Engineering