On August 18th, the world's first 3.0T/850 nuclear magnetic resonance molecular imaging superconducting magnet prototype independently developed by Weifang Xinli Superconducting Magnetoelectric Technology Co., Ltd. was successful. The authoritative expert test group composed of Ye Zhaohui, a member of the Chinese Academy of Sciences, said that all the indicators of the magnet are satisfied with the high-quality imaging requirements of the 3.0T NMR system, reaching the international advanced level, and have great practical significance in clinical application and medical research. . Its advent not only broke the long-term monopoly of foreign technology, but also marked the development of high-end medical imaging equipment in China.
Nuclear Magnetic Resonance Molecular Imaging Superconducting magnets are the most important components in nuclear magnetic resonance systems. Their magnetic field strength, stability, and uniformity have a great influence on the images formed by the system. Model 850 superconducting magnet is designed for Asian human body. The room temperature is 850mm, the weight of the magnet is 6000kg, the liquid helium capacity is 1000L, the center field strength is 3.0±0.015T (Tesla), the magnetic field uniformity is ≤10ppm, and it is applied to 3.0T. The MRI system can perform high-quality scanning of all parts of the body, and is one of the most advanced high-end medical imaging equipment in the world. Compared with the traditional 1.5T NMR system, it has obvious technical advantages such as fast imaging speed, high image quality and low scanning noise, which enables patients to get the quickest and most accurate diagnosis and win valuable opportunities for effective treatment of diseases.
The magnet is a key research and development project in Shandong Province. According to Wang Zhaolian, chairman of the National Technology Alliance for Magnetics and Low Temperature Superconducting Magnets Application Technology Innovation, and Wang Zhaolian, Chairman of Weifang Xinli Superconducting Magnetoelectric Technology Co., Ltd., the magnet has designed an advanced low temperature system, which can achieve zero volatility of liquid helium, greatly reducing Equipment use costs and maintenance costs. At the same time, the magnet also designed the monitoring module function, which can effectively monitor the operating data of magnet 4K pressure and liquid level to ensure the safe operation of the magnet.
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