The aim of this work is to investigate the relationship between contrast and energy resolution of a quasi-monochromatic X-ray system based on Bragg diffraction on a mosaic crystal. Three different energies have been considered: 18, 22 and 26 keV. A commercial phantom containing large and small area details and a digital detector have been used. Results show that for large area details and for a certain value of energy, the energy spread of the incident X-ray beams produces a small reduction of the contrast, while for small area details the high reduction of the contrast is principally due to the spatial resolution properties of the system.
|Titolo:||Dependence of image quality on energy spread for a Bragg diffraction based radiography system|
|Rivista:||NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT|
|Citazione:||Baldelli, P., Bacci, A., Bottigli, U., Ferrario, M., Gambaccini, M., Giulietti, D., et al. (2007). Dependence of image quality on energy spread for a Bragg diffraction based radiography system. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT, 580(2), 986-989.|
|Appare nelle tipologie:||1.1 Articolo in rivista|
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