中微子研究
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于泽源:潜心科研,提升中微子振荡参数测量精度
Ren Min Ri Bao· 2026-01-07 06:39
加强基础研究战略性、前瞻性、体系化布局,提高基础研究投入比重,加大长期稳定支持。 江门中微子实验是一个国际合作项目,来自17个国家和地区的700多名科研人员参与其中。欧洲团 队贡献了不少探测器部件,泰国、巴基斯坦等国家的团队也深度参与,这种跨越国界的科研合作,让我 们深深感到了"科学无国界"。 2025年11月19日,我们发布了首个物理成果。通过数据分析,我们将中微子振荡参数的测量精度提 高了1.5到1.8倍。这个结果证明,探测器的性能完全符合设计预期。这只是一个开始——未来3到5年, 我们有望将测量精度提升到更高水平。 有人问,中微子研究离日常生活那么远,为什么要投入这么多资源?我觉得,基础科学研究的价值 往往需要时间来证明。中微子研究不仅能够帮助我们理解宇宙的基本规律,还可能在未来带来意想不到 的发现。比如,通过探测地球中微子,我们可以分析地壳和地幔中的放射性元素含量;通过捕捉超新星 中微子,能研究恒星爆发的机制。这些研究正在为地球科学和天体物理开辟新的方向。展望"十五五", 我们将继续聚焦中微子质量顺序这个核心问题,同时拓展地球中微子、超新星中微子等交叉研究。 ——摘自"十五五"规划建议 2025年8月 ...
【人民日报】潜心科研,提升中微子振荡参数测量精度
Ren Min Ri Bao· 2026-01-07 03:09
加强基础研究战略性、前瞻性、体系化布局,提高基础研究投入比重,加大长期稳定支持。 2025年8月,当位于广东的江门中微子实验装置顺利建成时,我在实验站现场的控制室里,看着控 制屏上的数据流,心中百感交集。这一刻,我们等了10多年。 中微子因极难探测,被称为"幽灵粒子"。作为从大亚湾中微子实验就开始研究"幽灵粒子"的科研人 员,我深知江门实验的意义——我们要以全新的精度测量中微子振荡,破解其质量顺序的谜题。项目初 期,实验室还是一片正在开挖的"山体",我们戴着安全帽在施工现场忙碌,通过模拟计算和理论研究, 为探测器研发和性能研究做准备。 2022年,随着土建工程结束,地下实验大厅正式交付,我们开始了探测器的安装工作。那段时间, 我频繁往返于北京和江门之间。最紧张的是2024年12月到2025年2月,我在江门连续工作了近3个月,每 天都要处理探测器的状态监控、任务分配和各种突发状况。那段时间,工作和生活的界限变得非常模 糊,脑子里装的都是探测器的事。 2025年8月22日晚上,我记得格外清楚。当时我们正在进行有机玻璃球内液闪的置换工作,依靠传 统方法无法精确判断完成时间。我提出了一个方案:利用放射源沿导轨滑动,通 ...
潜心科研,提升中微子振荡参数测量精度(奋进“十五五”·一线见闻)
Ren Min Ri Bao· 2026-01-07 00:37
加强基础研究战略性、前瞻性、体系化布局,提高基础研究投入比重,加大长期稳定支持。 ——摘自"十五五"规划建议 2025年8月,当位于广东的江门中微子实验装置顺利建成时,我在实验站现场的控制室里,看着控制屏 上的数据流,心中百感交集。这一刻,我们等了10多年。 探索未知,需要更多勇气与担当 科研探索就像播种,短期难见果实,却在某种程度上延展着人类认知的边界。中微子研究亦如此:它不 仅能够揭示宇宙的基本规律,还可能孕育跨界应用,为地球科学与天体物理科学打开全新的研究路径。 这些看似遥远的观测,正在悄然为跨学科研究铺设地基。 中微子因极难探测,被称为"幽灵粒子"。作为从大亚湾中微子实验就开始研究"幽灵粒子"的科研人员, 我深知江门实验的意义——我们要以全新的精度测量中微子振荡,破解其质量顺序的谜题。项目初期, 实验室还是一片正在开挖的"山体",我们戴着安全帽在施工现场忙碌,通过模拟计算和理论研究,为探 测器研发和性能研究做准备。 2022年,随着土建工程结束,地下实验大厅正式交付,我们开始了探测器的安装工作。那段时间,我频 繁往返于北京和江门之间。最紧张的是2024年12月到2025年2月,我在江门连续工作了近3个 ...
聚开放之力,探宇宙精微(新知)
Ren Min Wang· 2025-12-03 22:29
Core Insights - The Jiangmen Underground Neutrino Observatory (JUNO) has achieved significant scientific results by measuring two parameters related to neutrino oscillation, improving precision by 1.5 to 1.8 times compared to previous experiments [1] - The experiment aims to support global research on neutrinos from various sources, including the sun, supernovae, atmosphere, and Earth, thereby contributing to breakthroughs in the field [1] Group 1 - The JUNO experiment, initiated in 2008, was included in the Chinese Academy of Sciences' strategic technology projects, establishing China's leading position in neutrino research five years ahead of similar international projects [2] - The experiment represents a significant step towards understanding the mass hierarchy of neutrinos, likened to capturing elusive signals about the universe's fundamental nature [2] Group 2 - The collaboration involves over 700 researchers from 75 institutions across 17 countries, highlighting the importance of international cooperation in achieving major scientific breakthroughs [3] - The success of the JUNO experiment is part of a broader commitment by China to contribute to global scientific innovation and collaboration, as evidenced by recent developments in fusion science [3]
视频丨首个、首次、首台!本周,大国重器再传好消息
Yang Shi Xin Wen· 2025-11-21 06:54
Core Achievements - China's Jiangmen neutrino experiment has achieved significant breakthroughs in precision measurement, improving accuracy by 1.5 to 1.8 times compared to previous experiments [1][2] - The Jiangmen neutrino experiment is the world's first large-scale, high-precision neutrino research facility, aimed at solving major particle physics questions regarding neutrino mass ordering [2][3] Nuclear Power Developments - The construction of China's first "Hualong One" nuclear power plant, which utilizes cooling towers, has officially commenced, marking a significant milestone in the country's nuclear energy sector [3] - The project will consist of six Hualong One units with a total installed capacity of approximately 7.2 million kilowatts, capable of meeting the annual electricity needs of 5 million people [3] Energy Efficiency Innovations - The first high-pressure natural gas long-distance pipeline pressure recovery power generation project has been launched in Jiangsu, representing a breakthrough in the efficient utilization of excess pressure resources in gas transportation [4] - This project signifies advancements in the comprehensive utilization of energy in long-distance pipeline systems [4] Green Hydrogen Initiatives - China's first green hydrogen coupled coal chemical demonstration project has entered market operation, showcasing a successful model of "green electricity hydrogen production + excess electricity grid connection" [6] - The project has achieved 28 invention patents and established three enterprise standards, contributing to the green transformation of the coal chemical industry [6][7] Aquaculture Advancements - The delivery of the floating dynamic positioning aquaculture platform "Zhanjiang Bay No. 1" marks a transition in China's aquaculture from shallow to deep sea, with a capacity of 8,000 cubic meters and an annual production capacity of 2,000 to 5,000 tons [7][8] - This platform supports multi-species farming and is designed for deep-sea intelligent aquaculture, filling several gaps in the industry [7][8]
首个、首次、首台!本周,大国重器再传好消息
Yang Shi Xin Wen Ke Hu Duan· 2025-11-21 06:49
Core Insights - China has achieved significant breakthroughs in engineering construction and scientific exploration, showcasing its technological prowess and precision in various fields [1][3] Group 1: Neutrino Experiment - The Jiangmen Neutrino Experiment, the world's first large-scale and high-precision neutrino facility, has released its first major scientific results, improving measurement precision by 1.5 to 1.8 times compared to previous experiments [1][3] - The primary scientific goal of the experiment is to determine the mass ordering of neutrinos, addressing a major issue in particle physics for the next decade [3] Group 2: Nuclear Power Development - The construction of China's first "Hualong One" nuclear power plant with cooling towers has officially begun, marking a significant milestone in the Shandong Zhaoyuan nuclear power base [5] - The Hualong One technology is China's self-developed third-generation nuclear power technology, with a total planned capacity of approximately 7.2 million kilowatts across six units, capable of meeting the annual electricity needs of 5 million people [5] Group 3: Energy Utilization Innovations - The first high-pressure natural gas long-distance pipeline pressure recovery power generation project has commenced operations, enhancing the efficient use of pressure resources during gas transportation [5] - A green hydrogen coupling coal chemical project has entered market operation, demonstrating a successful model for the green transformation of the coal chemical industry [7] Group 4: Aquaculture Advancements - The "Zhanjiang Bay No. 1" floating dynamic positioning aquaculture platform has been delivered, featuring a capacity of 8,000 cubic meters for multi-species farming and an annual production capacity of 2,000 to 5,000 tons [7][9] - This platform represents a significant advancement in deep-sea aquaculture technology, supporting the modernization of marine ranching in China [9]
什么?!科学家正在地下捉“鬼”?
Huan Qiu Wang Zi Xun· 2025-11-19 04:54
Core Viewpoint - The article discusses the ongoing efforts of Chinese scientists to capture neutrinos, referred to as "ghost particles," through the Jiangmen Underground Neutrino Observatory (JUNO), highlighting the significance of neutrinos in understanding the universe and the technological challenges involved in the experiment [1][5][22]. Group 1: Neutrino Characteristics - Neutrinos are one of the fundamental particles of the universe, with an estimated 300 neutrinos per cubic centimeter present everywhere due to the remnants of the Big Bang [2][5]. - They travel at nearly the speed of light and have a very weak interaction with matter, making them extremely difficult to detect [2][4]. Group 2: Scientific Importance - Neutrinos carry crucial information about the universe, including insights into the nature of antimatter and the fundamental properties of matter [5][6]. - The study of neutrinos has been a significant area of research in physics, with major discoveries leading to Nobel Prizes [9]. Group 3: Experimental Setup - The JUNO facility is located 700 meters underground to minimize interference from cosmic rays, which can disrupt neutrino detection [10][12]. - The experimental setup includes a large central detector submerged in a water pool, designed to capture neutrinos produced by nearby nuclear power plants [10][17]. Group 4: Technological Innovations - The project has required the development of new technologies, including advanced photomultiplier tubes and high-purity liquid scintillator systems, to achieve unprecedented detection capabilities [14][16]. - The JUNO experiment is noted for being the world's largest and most precise neutrino detection facility, with a design lifespan of 30 years [12][16]. Group 5: Future Prospects - The experiment began data collection in August 2023, with expectations of significant findings in the next three to five years, potentially coinciding with rare astronomical events like supernovae [20][22]. - The research aims to position China at the forefront of fundamental scientific research, contributing to global knowledge in the field [22].
大国重器传来好消息!江门中微子实验首个重大成果发布
Yang Shi Xin Wen· 2025-11-19 03:02
Core Insights - The Jiangmen Neutrino Experiment has officially commenced operations, marking a significant milestone in scientific research [1] - The experiment confirmed the existence of the solar neutrino anomaly, achieving a measurement precision improvement of 1.5 to 1.8 times compared to previous international experiments [3][5] - The primary scientific goal is to resolve a major issue in particle physics: the mass ordering of neutrinos, which could open new avenues for exploring the unknown physical world [5] Experiment Overview - The Jiangmen Neutrino Experiment was proposed by the Institute of High Energy Physics, Chinese Academy of Sciences in 2008, with construction starting in 2015 and completion in December 2021 [8] - The core detector has an effective mass of 20,000 tons and is located 44 meters underground, featuring a stainless steel shell and various key components for detecting neutrino interactions [8] Future Prospects - As the world's first large-scale, high-precision neutrino facility, the Jiangmen Neutrino Experiment is expected to facilitate cutting-edge research on neutrinos from various cosmic sources [11] - The facility has a design lifespan of 30 years and can be upgraded to become the most sensitive experiment for neutrinoless double beta decay, potentially addressing critical questions in particle physics, astrophysics, and cosmology [11]
走近大国重器丨地下700米捕捉“幽灵粒子”探访超大规模超高精度中微子大科学装置
Zhong Yang Ji Wei Guo Jia Jian Wei Wang Zhan· 2025-10-27 00:26
Core Viewpoint - The construction and operation of the Jiangmen Neutrino Experiment (JUNO) represent a significant advancement in China's scientific capabilities, aiming to enhance the country's position in global scientific research and innovation [2][19]. Group 1: Overview of the Jiangmen Neutrino Experiment - The Jiangmen Neutrino Experiment is the world's largest and most precise liquid scintillator neutrino detector, marking a new chapter in neutrino research in China [2][4]. - The experiment aims to measure the mass hierarchy of neutrinos and improve the precision of neutrino oscillation parameters, contributing to the understanding of fundamental questions about matter and the universe [4][13]. Group 2: Technical Achievements - The experiment features a central detector with a 35.4-meter diameter acrylic sphere containing 20,000 tons of liquid scintillator, which is the largest of its kind globally [6][12]. - The detector's design includes 45,000 photomultiplier tubes, significantly increasing the effective detection area to 78%, surpassing other international experiments [13][15]. Group 3: Challenges and Solutions - The construction faced significant challenges, including geological difficulties due to the high water content of the rock and the need for a deep underground facility [9][10]. - A collaborative technical team was formed to address these challenges, leading to innovative construction methods and the successful installation of critical components [9][11]. Group 4: Impact on Industry and Research - The project has spurred advancements in related industries, enhancing the technological capabilities of domestic manufacturers involved in producing key components like the photomultiplier tubes and acrylic sphere [17][21]. - The successful operation of JUNO is expected to attract international collaboration, positioning China as a leader in neutrino research and contributing to the global scientific community [17][22].
见证科学和时代的激情相遇(序与跋)
Ren Min Ri Bao· 2025-09-11 22:21
Core Viewpoint - The Jiangmen Neutrino Experiment, a significant scientific project in China, has officially commenced operations, marking a major milestone in the country's contributions to fundamental physics research and neutrino studies [2][3]. Group 1: Project Background - The Jiangmen Neutrino Experiment is the successor to the Daya Bay Neutrino Experiment, which established China's leading position in the field of neutrino research [3]. - The project was conceived in 2008, officially approved in 2013, and construction began in 2015, taking a total of 17 years to complete [2][3]. Group 2: Challenges and Achievements - The construction faced numerous challenges, including unexpected water inflow during excavation and the need for innovative solutions due to the project's unprecedented scale and precision [4]. - The successful completion of the Jiangmen Neutrino Experiment is seen as a testament to the dedication and spirit of Chinese scientists, showcasing their commitment to advancing fundamental science [4][5]. Group 3: Cultural Impact - A literary work titled "Micro Light Will" has been published, documenting the 17-year journey of the Jiangmen Neutrino Experiment, highlighting the experiences of researchers involved [5]. - This book serves not only as a record of scientific achievement but also as a means to inspire and convey the spirit of scientific pursuit in China [5].