"Our country has made important progress in the world's largest 'artificial sun' project."

On November 10th, it was learned from the Southwest Institute of Nuclear Physics that the international thermal nuclear fusion experimental probe system of the world's largest "artificial sun" Longmuir, independently developed by the institute, recently passed the final design review of key core technologies and processes such as probe body, power supply system, and instrument control equipment at the headquarters of the ITER organization in France. This marks an important progress in China's development of key diagnostic systems for the ITER project, laying a solid foundation for the subsequent system manufacturing and overall delivery. The Longmuir probe is an important diagnostic component on the ITER divertor, which will work under high heat load conditions, mainly used to measure key parameters such as temperature and density of the plasma near the divertor target plate, providing crucial data support for the operation and optimization of the ITER device. The Longmuir probe project undertaken by China was independently completed by the Institute of Nuclear Physics, and the project products will be installed at the positions of the 2nd, 10th, and 14th sector diverters of the device in the future.