日本核聚变实验核心装置建成，记者探访内部

Core Viewpoint - The completion of the plasma control device at the JT-60SA nuclear fusion facility marks a significant step in stabilizing plasma for future experiments, with plans to conduct plasma generation experiments starting in 2026 [1][4]. Group 1: Plasma Control Device - The plasma control device, known as the "position control coil," has been installed at the JT-60SA facility, which is located in Ibaraki Prefecture, Japan [1]. - This device is crucial for maintaining the stability of plasma, which is formed by heating fuel to 100 million degrees Celsius [3][4]. - The coils are made of copper, with a diameter of 8 meters, and were installed with precision to ensure a circular shape, controlling installation errors to within 2 millimeters [1]. Group 2: JT-60SA Facility - JT-60SA is the world's largest Tokamak-type nuclear fusion experimental device, redesigned and completed in 2020, and it successfully generated plasma for the first time in 2023 [6]. - The facility will undergo enhancement projects starting in 2024 to produce higher temperature and pressure plasma, with completion expected by 2026 [6]. - Research outcomes from JT-60SA will contribute to the ITER nuclear fusion reactor project currently under construction in France [6].