科学与健康｜以光为“尺”探索物质微观结构！我国首台高能同步辐射光源今年底试运行

Core Insights - The first generation of synchrotron radiation source in China, the Beijing Synchrotron Radiation Facility (BSRF), has been reopened, while the construction of the world's highest brightness fourth-generation synchrotron radiation source (HEPS) is expected to be completed by the end of 2025, ready for trial operation [2][3][7] Group 1: Synchrotron Radiation Source Overview - The basic principle of synchrotron radiation sources involves accelerating electrons to produce light, which is utilized to explore the microstructure and evolution mechanisms of materials [3][5] - BSRF has been operational since 1990, providing high-quality synchrotron radiation across a range of applications, including aerospace, energy, environment, and biomedicine [3][4] - The facility has contributed to significant research outcomes, such as the molecular structure analysis of the SARS virus protein and the molecular mechanism of arsenic in leukemia treatment [3][8] Group 2: Fourth-Generation Synchrotron Radiation Source (HEPS) - HEPS, designed to emit the brightest light on Earth, will support advanced experimental methods such as nano-probing and ultra-high time resolution, enhancing the study of material microstructures under real conditions [5][7] - The HEPS project has completed the construction of the accelerator and beamlines, with all 15 beamlines operational, and aims to expand to 90 beamlines to maximize its capabilities [7][9] - The fourth-generation source is expected to significantly improve the quality and efficiency of microstructure analysis, aiding in the development of new materials and drug discovery [8][9] Group 3: Future Developments and Collaborations - The BSRF will retain 8 beamlines post-upgrade and continue to operate in a shared light mode, ensuring ongoing access for research institutions and universities [4][9] - The HEPS team is actively engaging with various research institutions and enterprises to gather experimental proposals and major R&D needs, aiming to align scientific demands with the facility's capabilities [9] - The focus will be on addressing national priorities and industrial innovation while fostering international collaboration and a user-friendly environment [9]