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    共为您找到24个结果

    1.0 2025-03-12 06:39:19

    Equipment
    Instrument Sharing Platform
    Sharing Instrument Platform
    系统管理员   2025-03-12 06:39:58

    1.0 2025-03-12 06:37:56

    Equipment
    National Innovation Center for Advanced Medical Devices
    Medical Innovation Advanced Center Devices
    系统管理员   2025-03-12 06:39:14

    1.0 2024-12-27 00:29:01

    Contact Us
    Recruitment of Academician Zheng Hairong's Research Group at Lauterberg Biomedical Imaging Research Center
    Research Lauterberg Hairong's Group Zheng
    系统管理员   2025-03-05 00:29:12

    1.0 2024-12-23 00:29:29

    Contact Us
    Research Assistant - Imaging Device Research Center of Medical Engineering Institute, led by Ge Yongshuai
    Research Engineering Center Medical Device
    系统管理员   2025-03-05 00:29:41

    1.0 2024-12-05 00:28:05

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    Shenzhen Advanced Institute of Medical Engineering Dr. Du Xuemin's team is recruiting postdoctoral fellows
    Engineering Xuemin's Du Dr Medical
    系统管理员   2025-03-05 00:28:14

    1.0 2024-11-07 00:27:16

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    Shenzhen Advanced Institute of Medical Engineering Ruan Yue team recruits postdoctoral fellows
    Engineering Yue Ruan Medical team
    系统管理员   2025-03-05 00:27:30

    1.0 2024-11-04 00:29:53

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    Research Assistant - Team of Li Hui and Zheng Wei from the Biomedical Optics and Molecular Imaging Research Center of the Institute of Medical Engineering
    Research Imaging Hui Molecular Li
    系统管理员   2025-03-05 00:30:07

    1.0 2024-03-06 07:45:39

    Research
    Nature Communications | Screen printed perovskite CMOS array detector achieves high-performance dynamic X-ray imaging
    Recently, the Shenzhen Institute of Advanced Technology of the Chinese Academy of Sciences cooperated with Central China Normal University to publish the research paper "Dynamic X-ray imaging with screen printed perovskite CMOS array" online in the authoritative journal Nature Communications After more than two years of joint research and development, the team has successively solved a series of key challenges such as the growth kinetics of perovskite semiconductor crystals, specialized low dark current CMOS pixel chips, data readout and image post-processing, and finally successfully developed a high-resolution, low-dose perovskite direct conversion X-ray detector based on CMOS pixel chips for the first time internationally Yu Xuefeng and Zheng Hairong, researchers of the Chinese Academy of Sciences Shenzhen Institute of Advanced Technology, Sun Xiangming, professor of Central China Normal University, Ge Yongshuai, researchers of the Chinese Academy of Sciences Shenzhen Institute of Advanced Technology, are the co corresponding authors of this article, and Liu Yanliang, associate researcher of the Chinese Academy of Sciences Shenzhen Institute of Advanced Technology, and Gao Chaosong, associate professor of Central China Normal University, are the co first authors of this article Online screenshot of the paper Paper link: https://doiorg/101038/s41467-024-45871-2 X-ray detection and imaging are widely used in biomedical, industrial testing, and security inspection fields The current commercial indirect conversion X-ray detectors using scintillators (such as cesium iodide) have technical bottlenecks such as low secondary photoelectric conversion efficiency and limited spatial resolution, which cannot meet the needs of high-end medical imaging and precision industrial detection In contrast, direct conversion X-ray detectors based on semiconductor materials only require one photoelectric conversion to directly convert X-rays into electrical signals, with higher photoelectric conversion efficiency and spatial resolution, making them the forefront of the development of the next generation of high-end X-ray detectors In recent years, perovskite semiconductors have attracted much attention in the field of direct conversion X-ray detection due to their excellent optoelectronic properties This research work innovatively developed a liquid-phase screen printing process By dynamically controlling the growth and crystallization process of perovskite crystals, a perovskite semiconductor photosensitive layer was directly grown in situ on a CMOS chip, resulting in a thickness controllable, dense, uniform, and excellent optoelectronic properties of the perovskite photosensitive layer The product of material mobility and lifetime reached 52 10-4 cm2 V-1, and the X-ray detection sensitivity reached 16 104 C Gyair-1 cm-2 The CMOS chip continuously scans samples vertically and horizontally at a frequency of 300 frames per second, achieving large-area projection imaging (size ≥ 5cm 10cm) and tomographic imaging of samples such as mouse and chicken leg tissues Compared to traditional indirect conversion CMOS detectors, experimental results show that this new perovskite direct conversion CMOS detector is expected to reduce radiation dose by more than 50% while maintaining excellent spatial resolution (50 lp mm-1) This work has significant characteristics of the intersection and integration of basic research and applied research, providing technical support for breaking the long-term technology blockade and monopoly of foreign countries and developing the next generation of high-performance X-ray detectors with independent intellectual property rights Direct conversion of perovskite into CMOS detectors and high-resolution, low-dose biomedical imaging results This research work has been funded by Shenzhen Key Basic Research Project, National Natural Science Foundation of China Key Project, Chinese Academy of Sciences Key Laboratory of Medical Imaging Science and Technology System (National), National High Performance Medical Device Innovation Center and other institutions
    X-ray CMOS conversion perovskite imaging
    系统管理员   2025-03-04 07:53:11

    1.0 2024-02-26 08:27:14

    Research
    Good news | At the beginning of the new year, Nature Communications from the Medical Engineering Institute has launched a "double launch"!
    Institute new year Engineering Nature
    系统管理员   2025-03-04 08:29:38

    1.0 2024-02-20 06:45:21

    Research
    European Radiology | Whole body PET intelligent attenuation correction technology without CT
    PET intelligent attenuation body Whole
    系统管理员   2025-03-05 06:46:17

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