我国紧凑型聚变能实验装置成功落“座”

Core Insights - The installation of the first key component, the Dewar base, for the compact fusion energy experimental device (BEST) in Hefei, Anhui, marks a new phase in the project's construction, accelerating component development and engineering installation [1][3] - Fusion energy, regarded as the "ultimate energy," simulates the nuclear fusion reactions occurring in the sun, aiming to demonstrate plasma "burning" of deuterium and tritium, potentially achieving the world's first fusion energy generation [1] - The Dewar base, weighing over 400 tons and measuring approximately 18 meters in diameter and 5 meters in height, is the heaviest single component in the BEST device and the largest vacuum component in China's fusion field to date [3][5] Technical Achievements - The installation of the Dewar base required high precision to ensure the future stability of the device, with surface level differences controlled within 15 millimeters and positional deviations not exceeding ±2 millimeters [5] - The project team developed a specialized lifting system and utilized laser tracking technology for real-time monitoring and adjustments, achieving millimeter-level precision during installation [5] - Following the successful installation of the Dewar base, core components of the main device will be installed sequentially, with the BEST expected to be completed by the end of 2027 [5] Strategic Importance - The steady progress of the BEST construction is of significant strategic importance for China to lead in cutting-edge fusion science research, validate key technologies for future fusion reactors, and continue to guide international developments in fusion energy [5]