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Using energy-resolved X-ray computed tomography with a current mode detector to distinguish materials.
- Source :
- Japanese Journal of Applied Physics; May2014, Vol. 53 Issue 5, p1-1, 1p
- Publication Year :
- 2014
-
Abstract
- In conventional X-ray computed tomography (CT), X-rays are measured as electric current. Materials inside a subject are described by the linear attenuation coefficients averaged by the energy spectrum of the X-rays. A CT image cannot distinguish materials such as iodine and calcium, because the linear attenuation coefficient is not inherent to a material, but the product of X-ray mass attenuation coefficient and the density of the material. Materials such as iodine and calcium can be distinguished using an energy-resolved CT technique, with a current-mode detector system, using segment detectors aligned in the direction of X-ray incidence: the energy-resolved CT images are reconstructed by the X-rays with the energy of interest, by unfolding electric currents measured by the segment detectors. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00214922
- Volume :
- 53
- Issue :
- 5
- Database :
- Complementary Index
- Journal :
- Japanese Journal of Applied Physics
- Publication Type :
- Academic Journal
- Accession number :
- 100232750
- Full Text :
- https://doi.org/10.7567/JJAP.53.056601