Economic Observation Network According to the CCTV News client, today (27th), the largest superconducting component of the national major scientific and technological infrastructure "Integrated Research Facility for Key Systems of Fusion Reactor Mainframe" was announced——Circumferential Field MagnetComplete the final preparation process and pass expert acceptance. Meanwhile,High temperature superconducting center coil magnetWe have also completed full condition parameter testing, and our core performance has reached the international leading level.

Circumferential Field MagnetIt is currently the largest superconducting magnet in the world for fusion reactors. The magnet is 21 meters long, 12 meters wide, and 3.3 meters high, with a total weight of 582 tons, making it the largest superconducting magnet for fusion reactors in the world. The circumferential field magnet is one of the most important components of the comprehensive research facility for the key system of the fusion reactor host, a large scientific device. During the operation of a nuclear fusion device, superconducting magnets generate a strong magnetic field to confine a high-temperature plasma at billions of degrees Celsius. The circumferential field magnet is responsible for constructing the circumferential magnetic field to confine the plasma and reduce the impact loss of high-energy particles on the vacuum chamber wall. At present, the key links of the entire magnet chain have achieved domestic independent controllability, and various performance indicators are leading international similar products.

The high-temperature superconducting center coil magnet, which completed full operating condition parameter testing today, is one of the core components of the compact fusion energy experimental device. The core function of this device is to induce and drive plasma current, and dynamically adjust the plasma confinement form. At present, the magnet has achieved complete localization in terms of superconducting materials, structural design, and complete preparation processes.

These two core technological breakthroughs have laid a solid superconducting engineering foundation for China's construction of nuclear fusion reactors, and will greatly enhance China's independent research and development and engineering construction capabilities in related fields.