中国“夸父”又有新跨越 成功打造聚变堆“盾牌”

Core Insights - The CRAFT facility has achieved significant progress with the successful testing and acceptance of the prototype component for the divertor, which is crucial for the fusion reactor's core operation [1][2] - The prototype's steady-state thermal load capacity reached 20 megawatts per square meter, and the alignment error of the target plate surface adjacent to the plasma is less than 1 millimeter, marking a successful development of the largest and highest thermal load divertor component designed independently in China [1] Summary by Sections Development and Testing - The divertor prototype component has successfully passed expert testing, demonstrating its ability to handle a steady-state thermal load of 20 megawatts per square meter [1] - The innovative design includes a hybrid divertor cladding integration scheme, theoretically increasing the tritium breeding ratio by over 3%, providing an effective pathway for achieving tritium self-sufficiency [1] Technical Innovations - The design features three structurally reliable and easily disassemblable target plates, validating the feasibility of quick replacements [1] - The use of a flat structure effectively controls the tungsten surface temperature below the recrystallization temperature, successfully achieving the ultra-high thermal load [1] Broader Implications - The successful development of the divertor prototype establishes a solid technical foundation for the engineering application of China's fusion reactor divertors [2] - The related technologies not only support other fusion devices but also have potential applications in aerospace, high-end medical equipment, industrial electronics, and new energy vehicles [2]