2 March 2006 Transparent BaCl2:Eu2+ glass-ceramic scintillator
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Scintillators are the backbone of high-energy radiation detection devices. Most scintillators are based on inorganic crystals that have applications in medical radiography, nuclear medicine, security inspection, dosimetry, and high-energy physics. In this paper, we present a new type of scintillator that is based on glass ceramics (composites of glasses and crystals). These scintillators are made from Eu2+-activated fluorozirconate glasses that are co-doped with Ba2+, La3+, Al3+, Na+, and Cl-. Subsequent heat treatment of the glasses forms BaCl2 nano-crystals (10-20 nm in size) that are embedded in the glass matrix. The resulting scintillators are transparent, efficient, inexpensive to fabricate, and easy to scale up. The physical structure and x-ray imaging performance of these glass-ceramic scintillators are presented, and an application of these materials to micro-computed tomography is demonstrated. Our study suggests that these glass-ceramic scintillators have high potential for medical x-ray imaging.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Gang Chen, Gang Chen, Jacqueline Johnson, Jacqueline Johnson, Stefan Schweizer, Stefan Schweizer, John Woodford, John Woodford, Peter Newman, Peter Newman, Douglas MacFarlane, Douglas MacFarlane, } "Transparent BaCl2:Eu2+ glass-ceramic scintillator", Proc. SPIE 6142, Medical Imaging 2006: Physics of Medical Imaging, 61422X (2 March 2006); doi: 10.1117/12.654265; https://doi.org/10.1117/12.654265

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