Scintillation ceramics are a class of functional materials that can convert high-energy rays or particles into ultraviolet-visible light. They are widely used in medical imaging, safety inspection, oil and gas exploration, industrial flaw detection, and high-energy physics. Among them, CT is scintillation ceramics One of the biggest application directions. As an important medical imaging method in modern medical diagnosis, CT plays an indispensable role in the diagnosis of tumors, cardiovascular, nervous system, orthopedics, and many other diseases. CT imaging quality, detection efficiency, and sensitivity It is directly determined by the rare earth scintillation ceramic used by the detector.
Recently, with the efforts of the R & D team of optoelectronic functional materials and devices of the Ningbo Institute of Materials Science and Technology, the Chinese Academy of Sciences, following breakthroughs in 2013 on the optimal design of CT scintillation ceramics with high sintering active nano-powders and batch preparation processes, high performance and low cost rare earth scintillation ceramics A major breakthrough has been made in the key technical fields of industrialization. Technically, the stable and controllable preparation of large-sized ceramics (60 mm × 140 mm) and the fine processing of high-precision detection arrays have been successfully achieved. At the same time, the key performance indicators such as light output, decay time, anti-irradiation damage, afterglow, etc. of ceramics prepared by the R & D team of the Ningbo Institute of Materials Research, Chinese Academy of Sciences have been internationally leading The horizontal gemstone scintillator is similar or better. The new breakthroughs in these key technologies will provide solid process guarantee and technical support for further promoting the industrialization of scintillation ceramics for CT.
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