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Performance of K -edge subtraction tomography as an application of parametric x-ray radiation
- Source :
- Physical Review Accelerators and Beams, Vol 22, Iss 2, p 024701 (2019)
- Publication Year :
- 2019
- Publisher :
- American Physical Society (APS), 2019.
-
Abstract
- We developed a novel method for element detection utilizing an x-ray source based on parametric x-ray radiation (PXR), an accelerator-based light source at the Laboratory for Electron Beam Research and Application (LEBRA), Nihon University. The method is a type of $K$-edge subtraction (KES) imaging that uses the drastic change of x-ray absorption around the $K$-shell absorption edge of the target element. Using the properties of PXR, simultaneous KES imaging is possible, and can easily be applied to 3-dimensional (3D) computed tomography (CT). We demonstrated the feasibility of simultaneous KES-CT in our previous work. In this study, we investigate the quantitative performance of simultaneous KES imaging for a sample containing the element strontium (Sr) for which the $K$-edge energy is 16.1 keV. Results of a simultaneous KES-CT experiment employing the LEBRA-PXR source confirm that the imaging method can provide a 3D distribution of the element with a value proportional to the Sr concentration. Concerning sensitivity to element concentration, at least in the region of 0.5%-concentration, the sample was successfully distinguished from the region without Sr in the 3D tomographic image obtained using the element-imaging technique.
- Subjects :
- Nuclear and High Energy Physics
Materials science
Physics and Astronomy (miscellaneous)
business.industry
Subtraction
X-ray
Surfaces and Interfaces
Radiation
Optics
Absorption edge
K-edge
lcsh:QC770-798
lcsh:Nuclear and particle physics. Atomic energy. Radioactivity
Tomography
business
Absorption (electromagnetic radiation)
Parametric statistics
Subjects
Details
- ISSN :
- 24699888
- Volume :
- 22
- Database :
- OpenAIRE
- Journal :
- Physical Review Accelerators and Beams
- Accession number :
- edsair.doi.dedup.....c9e83d7b5ea06e2c2f7fc12990c31236