首页|Efficient production of ligand-free microscintillators at gram-scale for high-resolution X-ray luminescence imaging
Efficient production of ligand-free microscintillators at gram-scale for high-resolution X-ray luminescence imaging
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The efficient production of high-quality scintillators with long radioluminescence afterglow is crucial for high-performance X-ray luminescence extension imaging.However,scaling-up the synthesis of ligand-free scintillators to fabricate large-area X-ray imaging screens for industrial applications remains a challenge.In this study,we report an efficient method to synthesize ligand-free,lanthanide-doped microscintillators by a one-pot reaction via the concentrated hydrothermal method.The as-synthesized microscintillators exhibit prolonged persistent radioluminescence for up to 30 days after X-ray exposure and remain high stability in air or water for more than 18 months without deterioration.Monte Carlo simulations indi-cate that the size effect is responsible for the excellent afterglow performance of the microscintillators.We employ these high-quality lanthanide-doped microscintillators to fabricate a large-area X-ray imaging detector using a blade-coating method,a spatial resolution of 24.9 lp/mm for X-ray imaging.Our study offers a solution for scaling-up the synthesis of low-cost microscintillators for practical applications.
New Cornerstone Science Laboratory,MOE Key Laboratory for Analytical Science of Food Safety and Biology,College of Chemistry,Fuzhou University,Fuzhou 350108,China
Joint School of National University of Singapore and Tianjin University,Fuzhou International Campus of Tianjin University,Fuzhou 350207,China
Beijing National Laboratory for Molecular Sciences,College of Chemistry and Molecular Engineering,Peking University,Beijing 100871,China
School of Public Health,Fujian Medical University,Fuzhou 350108,China
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National Key Research& Development Program of ChinaNational Key Research& Development Program of China国家自然科学基金国家自然科学基金国家自然科学基金福建省自然科学基金福建省自然科学基金Major Project of Science and Technology of Fujian Province
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