Journal
OPTICAL MATERIALS EXPRESS
Volume 11, Issue 2, Pages 398-411Publisher
OPTICAL SOC AMER
DOI: 10.1364/OME.409161
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The light yield, spatial resolution, and image quality of various inorganic scintillators were investigated using monochromated synchrotron radiation. The results showed that CsI is suitable for micro X-ray radiography and computed tomography with a low X-ray flux source, while GAGG and LuAG are suitable with a high X-ray flux source.
The light yield, spatial resolution, and image quality of inorganic scintillators (CsI:T1 (CsI), Gd(3)Al(2)Ga3O(12:) Ce (GAGG), Lu3Al5O12: Ce (LuAG), CdWO4 (CWO), Y3Al5O12: Ce (YAG), Bi4Ge3O11 (BGO), and Gd2O2S: Tb (GOS)) were investigated using monochromated synchrotron radiation. For quantitative analysis, the same imaging system composed of a relay lens system and a camera was used for all scintillators. The light yield of GOS was highest, followed in order by CsI, GAGG, CWO, YAG, LuAG, and BGO. The spatial resolution of micro X-ray radiographic images using GAGG and LuAG was highest, followed by using CsI, CWO, and YAG. The image qualities were almost the same, except for GOS. These results indicate that CsI is suitable for micro X-ray radiography and computed tomography with a low X-ray flux source, and GAGG and LuAG are suitable with a high X-ray flux source. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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