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Abstract：
Inorganic scintillation crystals, which are materials that emit light in the ultraviolet, visible, and near-infrared (UV-VIS-NIR) spectrum upon interaction with ionizing radiation such as X-rays, gamma rays, or charged particles, are widely used in many detection systems addressing different fields, such as high energy physics, nuclear physics, astrophysics, medical imaging, homeland security, industrial inspection, and oil well logging, etc. Since the pioneering use of the NaI:Tl crystal as a scintillator 76 years ago, the field has seen a surge in research and development. This is due to the ongoing advancements in detector technologies, the evolving performance requirements of ionizing radiation systems, and the significant improvements in crystal growth techniques and the corresponding theoretical knowledge. The understanding and modeling of scintillation mechanisms have also seen substantial progress. The aim of this seminar is to highlight the most recent advancements and trends in the realm of inorganic scintillation crystals. The seminar will provide a review of the historical context and the latest developments in this field. It will also delve into the enhancements made to the performance of very classical crystals such as BGO and BaF2 by doping. Additionally, a novel couple-free structured design of LuAG:Ce-LuAG scintillating single crystal fibers developed in SIC will be introduced.
Biography:
Dr. Junfeng Chen is now serving as a full professor at the Shanghai Institute of Ceramics, Chinese Academy of Sciences (SICCAS), and as the deputy head of the Advanced Crystals and Devices for Radiation Detection Group in R&D Center for Novel Materials. He obtained his Bachelor‘s degree from Zhengzhou University in 2003, Master’s degree in 2006, and Ph.D in 2015 from the University of Chinese Academy of Sciences. He visited the High Energy Physics Group in Dr. Ren-Yuan Zhu’s laboratory at the California Institute of Technology from February to August 2016. His research focuses on the research and development of inorganic scintillation crystals, organic-inorganic composite scintillators, semiconductors, and devices for radiation detection. In the past two decades, he has been involved in the development of high-performance and cost-effective inorganic scintillation crystals, arrays, and detectors for medical imaging, the 'Wu Kong' Dark Matter Particle Explorer satellite, the Jinping Underground Nuclear Astrophysics Experimental Facility, petroleum well logging, anti-Compton shielding, etc.
Host: Prof. Weihao Wu
Alternative online link:https://meeting.tencent.com/dm/UgI9ps4iclsK (id: 166260606 passcode: 123456）