Although XFCT based on sheet-beam geometry using synchrotron were also developed, fewer researches were done with polychromatic X-ray source .
In this study, sheet-beam XFCT system based on polychromatic X-ray source was verified by Monte Carlo simulation.
Principles and simulations of polychromatic X-ray fluorescence computed tomography with sheet-beam geometry are presented in this paper.
Polychromatic X-ray from X-ray tube is collimated into sheet beam and then impinges on the object to cover the whole cross-section.
We have presented a benchtop system for polychromatic X-ray fluorescence computed tomography with sheet-beam geometry through Monte Carlo simulation.
Conventional or single energy CT (SECT) utilizes a single polychromatic X-ray beam (ranging from 70 to 140 kVp with a standard of 120 kVp) emitted from a single source and received by a single detector.
Since materials have unique attenuation profiles at different energy levels according to their linear attenuation coefficient, DECT can utilize mathematical algorithms to examine tissues when exposed to both low and high-energy polychromatic X-ray beams.
Beam hardening commonly occurs as a result of attenuation of low energy photons within a polychromatic X-ray beam that contribute to scatter radiation and artifact but not image quality.
Measuring moisture content profiles in a board during drying: A polychromatic X-ray
system interfaced with a vacuum/pressure laboratory kiln.
The technique uses a laboratory source of high-energy polychromatic X-ray
in transmission to evaluate stresses in the bulk of the sample.
This single-wavelength beam is generated by using Bragg diffraction to extract a single-energy beam out of the original polychromatic X-ray
It is polychromatic X-ray
in the typical CT system and leads to cupping artifacts, which is that the grey of the reconstructed image depends on both the material and its position [4, 5].