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【新华社】我国首台脉冲型散裂中子源如何工作?专家为你解答
Xin Hua She· 2025-10-07 04:05
"速调管用更小的体积、更优的性能、更低的成本,为中国散裂中子源的高效运行保驾护航,也为 后续前沿科学研究打开了更广阔的空间。"慕振成说。 作为世界第四台、我国第一台脉冲型散裂中子源,中国散裂中子源犹如一台"超级显微镜",利用产 生的大量中子为探针,研究物质材料的微观结构。从高铁车轮的寿命长短到电动汽车的电池性能,近年 来,科研人员依托这台"显微镜",在能源、物理、材料等领域取得了一批科技创新成果,悄悄改变了人 们的生活。 在中国散裂中子源产生中子的过程中,P波段大功率超构材料速调管是不可或缺的核心部件。速调 管究竟是什么?它有什么作用?记者采访了相关专家。 "P波段大功率超构材料速调管是中国散裂中子源直线加速器的'发动机',为直线加速器束流提供能 量和动力。"中国科学院高能物理研究所高级工程师慕振成说,它通过产生大功率微波,作用于负氢离 子并转化为动能,推动其持续加速。 据介绍,这一部件的性能,就藏在它的名字里:速调管放大的频率为324MHz,恰好处于P波段的 频率范围内;而在速调管的谐振腔中增加超构单元这一特殊结构,显著减小了整个速调管的体积。 ...
我国首台脉冲型散裂中子源如何工作?专家为你解答
Xin Hua She· 2025-10-05 12:14
作为世界第四台、我国第一台脉冲型散裂中子源,中国散裂中子源犹如一台"超级显微镜",利用产生的 大量中子为探针,研究物质材料的微观结构。从高铁车轮的寿命长短到电动汽车的电池性能,近年来, 科研人员依托这台"显微镜",在能源、物理、材料等领域取得了一批科技创新成果,悄悄改变了人们的 生活。 在中国散裂中子源产生中子的过程中,P波段大功率超构材料速调管是不可或缺的核心部件。速调管究 竟是什么?它有什么作用?记者采访了相关专家。 据介绍,这一部件的性能,就藏在它的名字里:速调管放大的频率为324MHz,恰好处于P波段的频率 范围内;而在速调管的谐振腔中增加超构单元这一特殊结构,显著减小了整个速调管的体积。 "速调管用更小的体积、更优的性能、更低的成本,为中国散裂中子源的高效运行保驾护航,也为后续 前沿科学研究打开了更广阔的空间。"慕振成说。(记者刘祯) "P波段大功率超构材料速调管是中国散裂中子源直线加速器的'发动机',为直线加速器束流提供能量和 动力。"中国科学院高能物理研究所高级工程师慕振成说,它通过产生大功率微波,作用于负氢离子并 转化为动能,推动其持续加速。 ...
中国散裂中子源又一关键技术取得突破
Zhong Guo Jing Ji Wang· 2025-06-09 13:47
Core Insights - The successful acceptance of China's first domestically developed P-band high-power superconductor slow-wave tube marks a significant leap from reliance on imports to independent innovation in this field [1][2] - The P-band high-power slow-wave tube is a core component of the China Spallation Neutron Source (CSNS) linear accelerator, providing energy and power for the accelerator beam [1] - The development involved collaboration among various research teams and institutions, leading to a 50% reduction in the size of the cavity structure compared to similar foreign devices, which also lowers costs [1][2] Industry Implications - The successful development of the P-band high-power slow-wave tube opens up broad application prospects in large scientific installations, medical fields, and other industrial sectors [2] - The achievement signifies a complete localization of key core equipment for the accelerator, eliminating dependence on imported technology and significantly reducing costs [2] - The project has driven technological advancements in related domestic industries, showcasing the potential for further innovation and development within the sector [2]
影响市场重大事件:工信部将实施“人工智能+制造”行动,以工业智能体为抓手深化人工智能工业应用
Mei Ri Jing Ji Xin Wen· 2025-06-08 23:52
Group 1 - The Ministry of Industry and Information Technology (MIIT) is implementing the "Artificial Intelligence + Manufacturing" initiative to enhance industrial applications of AI, focusing on industrial intelligence and key technology breakthroughs [1] - As of the end of May 2025, China's foreign exchange reserves reached $328.53 billion, reflecting a slight increase of $36 million from the previous month, supported by the recovery of the economy [2] - The Ministry of Commerce reported that negotiations on price commitments for electric vehicles between China and Europe are in the final stages, requiring further efforts from both sides to resolve trade differences [3] Group 2 - Several international investment banks, including Deutsche Bank and Morgan Stanley, have raised their economic growth forecasts for China in 2025, predicting a strengthening of the Renminbi due to trade competitiveness [4] - The Ministry of Commerce emphasized that implementing export controls on rare earths is a common international practice, and China is willing to facilitate compliant trade with the EU [5] - Statistics show that from January to April 2025, the value added of small and medium-sized industrial enterprises in China increased by 8.2% year-on-year, with significant growth in equipment and raw materials manufacturing [6] Group 3 - Academician Ding Han from the Chinese Academy of Sciences highlighted that humanoid robots represent a key growth area in the robotics industry, with breakthroughs in dexterous hand technology being crucial for unlocking their potential [7][8] - The successful development of the world's first compact P-band high-power metamaterial rapid-tuning tube marks a significant technological breakthrough for China's neutron source, showcasing the country's capabilities in high-end RF device research [9] - The establishment of the Yangtze River Delta Advanced Manufacturing Cluster Alliance aims to create globally influential industrial landmarks and promote high-quality development in advanced manufacturing [10] Group 4 - Dongfeng Liuzhou Automobile Co., Ltd. and Zhifang Technology Co., Ltd. signed a strategic cooperation agreement to explore the application of embodied large models in automotive manufacturing, marking a significant milestone in the industry [11]
大国工程捷报频传 多领域实现新突破
news flash· 2025-06-08 23:32
Core Insights - Recent achievements in major engineering projects in China highlight the country's advancements in technology and innovation [1] Group 1: Technological Breakthroughs - The China Spallation Neutron Source has successfully developed the world's first high-power metamaterial tunable tube for P-wave, marking a significant international technological breakthrough [1] - The completion of the civil construction of the Xinjiang Qitai 110-meter aperture radio telescope will result in the largest and most precise hundred-meter-level telescope globally [1] Group 2: Energy Sector Developments - The Hunan Pingjiang pumped storage power station has achieved full-line connectivity, maintaining China's global leadership in pumped storage capacity for nine consecutive years [1] - The Bohai Liaohe 10-2 oilfield group has completed the installation of offshore floating supports, setting a new regional record for oil and gas platforms [1]
完成自主创新的关键跨越,中国散裂中子源速调管技术突破
Xuan Gu Bao· 2025-06-08 14:43
Group 1: Industry Developments - The successful testing and acceptance of China's first compact P-band high-power metamaterial traveling wave tube marks a significant breakthrough in the field of neutron sources, showcasing China's core capabilities in high-end RF device development [1] - The market share of high-temperature superconducting materials is expected to gradually expand due to ongoing developments in applications such as superconducting cables and controlled nuclear fusion [1] - REBCO tape, compared to first-generation high-temperature superconductors, is anticipated to significantly reduce production costs and has vast commercial prospects, especially in the development of 16T@4.2K superconducting magnet systems [1] Group 2: Company Highlights - Dongfang Tantalum Industry focuses on the localization of superconducting niobium materials, leveraging its full industry chain advantages and technological innovations to become a leading enterprise in the superconducting materials sector [2] - Western Superconducting Technologies utilizes its comprehensive superconducting material technology and major engineering experience to break international monopolies in fields such as nuclear fusion, medical imaging, and quantum computing [2] - Guoli Co., Ltd. is a platform enterprise for high-end electronic vacuum devices, entering the large scientific engineering and nuclear fusion fields with superconducting supporting devices (traveling wave tubes, cooling systems), characterized by high technical barriers and clear self-control determinacy [2]
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
Sou Hu Cai Jing· 2025-06-08 06:02
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].
新进展+1 国际首支P波段大功率超构材料速调管研制成功
Yang Shi Xin Wen· 2025-06-08 02:39
Core Insights - The successful acceptance of China's first compact P-band high-power metamaterial traveling wave tube marks a significant technological breakthrough for the China Spallation Neutron Source (CSNS) [1][3] - This device is crucial for the RF power source system of the CSNS linear accelerator, providing energy and power similar to an automobile engine [3] - The development of this technology signifies a shift from reliance on imports to independent innovation in high-end RF device research in China [3] Development and Testing - The P-band 324MHz traveling wave tube was developed through collaboration between the CSNS RF team, the University of Electronic Science and Technology of China, and other research institutions [3] - The project team introduced a resonant cavity loaded metamaterial technology design for the 324MHz high-power traveling wave tube [3] - After over four years of technical challenges, the device successfully passed high-power testing and met all key technical indicators, achieving a peak power of 2.5MW during a 48-hour stability test [3] Future Prospects - The P-band high-power metamaterial traveling wave tube has broad application prospects in large scientific installations, medical fields, and other industrial sectors [3] - The device is scheduled to officially launch in September 2026, further enhancing China's capabilities in high-end RF device development [3]