国际首支! 中国散裂中子源研制成功P波段大功率超构材料速调管

Core Viewpoint - The Chinese Academy of Sciences High Energy Physics Institute announced a significant breakthrough with the successful development of the world's first P-band high-power metamaterial traveling wave tube, marking a major advancement in China's innovation in high-power traveling wave tube technology [1][7]. Group 1: Development and Collaboration - The P-band high-power traveling wave tube is a core component of the China Spallation Neutron Source (CSNS) linear accelerator's RF power source system, previously reliant on imports [2][4]. - The development involved a collaboration over four years between the CSNS accelerator RF team, the University of Electronic Science and Technology of China, and other research institutions [2][4]. Group 2: Technical Specifications and Testing - The newly developed tube operates at a frequency of 324 MHz, achieving a peak output power exceeding 3.0 MW, with a pulse width of 650 microseconds and a repetition frequency of 25 Hz [4][5]. - The device successfully passed a 48-hour stability test at a peak power of 2.5 MW, confirming that all key technical indicators met design requirements [4][5]. Group 3: Significance and Future Applications - This achievement signifies a critical transition for China from dependence on imports to independent innovation in high-end RF devices, showcasing the country's core capabilities in this field [7][8]. - The P-band high-power metamaterial traveling wave tube is expected to have broad applications in large scientific installations, medical fields, and other industrial sectors [7]. Group 4: Advancements in Related Technologies - The CSNS has also made significant progress in the independent development of related equipment, including He-3 neutron detectors and neutron guides, further enhancing its innovation capabilities [9].