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世界最大的有机玻璃球落户江门中微子实验
Zhong Guo Chan Ye Jing Ji Xin Xi Wang· 2025-09-10 23:36
这个堪称世界之最的有机玻璃球,直径达35.4米。它由263块厚度为120毫米的烘弯球面板以及上下烟 囱,通过无缝拼接技术组装而成,有机玻璃净重约600吨。 多年以来,江苏汤臣集团始终致力于成为全球最具竞争力的亚克力综合供应商。汤臣科技作为集团旗下 的高新技术企业,专注于浇铸型工业有机玻璃(亚克力)板材的研发设计与生产制造。公司不仅起草制定 了1项国际标准、4项国家标准和4项行业标准,还具备强大的生产研发能力,年产浇铸型亚克力板材数 万吨。其自主研发的特大特厚板一次成形最大尺寸可达3.4×11.5m,最大厚度可达250mm,复合厚度超 过1000mm。公司先后开发了涵盖透明板、彩色板、导光板、声屏板、卫浴板等12大系列产品、200余 款产品,为行业产品应用提供全方位的材料和功能性解决方案,广泛应用于广告、医疗、轨道交通等领 域,产品远销中东、东南亚、北欧、西欧、南美洲等70多个国家和地区。 在参与广东江门中微子探测实验装置建设项目之前,汤臣科技已在国内外重点工程领域留下了诸多辉煌 印记。由其通过包埋工艺精心打造的60686根亚克力杆,组成了举世闻名的上海世博会英国馆"种子圣 殿"。这些杆的顶部藏着形态各异的种子 ...
广州首家市内免税店亮相;深圳机场三跑道计划年内投用丨大湾区财经早参
Sou Hu Cai Jing· 2025-08-27 01:07
Group 1 - The Jiangmen Neutrino Experiment in Guangdong has officially commenced data collection after successfully completing the infusion of 20,000 tons of liquid scintillator, marking it as the first next-generation large neutrino experiment facility in the world [1] - This facility aims to address significant issues such as neutrino mass ordering and is expected to make substantial contributions to cosmology and astrophysics [1] Group 2 - Guangzhou's first city-based duty-free store has officially opened, introducing an innovative shopping model that combines "duty-free + taxable," "imported + domestic," and "offline + online" shopping [2] - The store is designed to stimulate outbound traveler spending, guide overseas consumption back to China, and promote domestic brands internationally, positioning itself as a new "city living room" connecting Guangzhou to the world [3] Group 3 - The Shenzhen Airport's third runway has successfully completed its test flights, paving the way for its expected operational launch within the year, which will enhance the airport's overall capacity and its status as an international aviation hub [4] - The project is anticipated to accelerate Shenzhen's development into a globally influential economic center and a modern international metropolis [4] Group 4 - The world's first successful gene-edited pig lung transplant into a brain-dead human has been reported by a research team from Guangzhou Medical University, highlighting a significant advancement in organ transplantation technology [5] - This breakthrough is expected to alleviate the shortage of lung transplant donors, with international peers recognizing its milestone significance [6] Group 5 - On August 26, the Shenzhen Component Index closed at 12,473.17 points, reflecting a 0.26% increase [7] - The top gainers in the Shenzhen market included Zhengyuan Wisdom, Jiaheng Home, and Boya Precision, each with a 20.02% increase [8] - The top decliners included Feilu Co., Qiangrui Technology, and Haichang New Materials, with declines of 16.73%, 11.93%, and 10.82% respectively [8]
我国地下700米有个全球第一!网友:虽然不是很懂 但是大受震撼
Mei Ri Jing Ji Xin Wen· 2025-08-26 16:19
Core Insights - The Jiangmen Underground Neutrino Observatory (JUNO) has successfully completed the infusion of 20,000 tons of liquid scintillator and has officially begun data collection, marking it as the first operational large-scale and high-precision neutrino-specific scientific facility in the world [1][3] - The initial data collected during the trial operation indicates that the key performance indicators of the JUNO detector have met or exceeded design expectations, enabling the facility to address a significant issue in particle physics: the ordering of neutrino masses [1][2] Group 1 - The JUNO detector is located 700 meters underground near Jiangmen, Guangdong, and can detect neutrinos produced by the Taishan and Yangjiang nuclear power plants, measuring their energy spectrum with unprecedented precision [2][3] - Compared to similar international experiments, JUNO's measurement of mass ordering is unaffected by terrestrial material effects and other unknown neutrino oscillation parameters, significantly improving the precision of three out of six neutrino oscillation parameters [2][3] Group 2 - The JUNO project was proposed by the Institute of High Energy Physics, Chinese Academy of Sciences in 2008, received strategic support in 2013, and began construction of the tunnel and underground laboratory in 2015 [3][7] - The laboratory construction was completed in December 2021, and the detector installation began, with the infusion of ultra-pure water and liquid scintillator starting in December 2024 [3][6] - The project team successfully infused over 60,000 tons of ultra-pure water within 45 days, maintaining a liquid level difference of centimeters and a flow deviation of no more than 0.5%, ensuring the safety and stability of the detector structure [3][6] Group 3 - The core detector of JUNO has an effective mass of 20,000 tons and is housed in a 44-meter deep underground pool, featuring a 41.1-meter diameter stainless steel mesh shell that supports various critical components [6][7] - The JUNO project is a major international collaboration involving nearly 700 researchers from 74 institutions across 17 countries and regions, with a design lifespan of 30 years and potential upgrades to become the world's most sensitive experiment for neutrinoless double beta decay [7] - The spokesperson for the JUNO collaboration highlighted that the completion of the detector infusion and the start of data collection represents a breakthrough, enabling fundamental questions about the nature of matter and the universe to be addressed [7]
我国地下700米有个全球第一!网友:虽然不是很懂,但是大受震撼
Mei Ri Jing Ji Xin Wen· 2025-08-26 13:41
Core Insights - The Jiangmen Underground Neutrino Observatory (JUNO) has successfully completed the infusion of 20,000 tons of liquid scintillator and has officially begun data collection, marking it as the first operational large-scale and high-precision neutrino-specific scientific facility in the world [1][9] - The initial data collected during the trial operation indicates that the key performance indicators of the JUNO detector have met or exceeded design expectations, enabling it to address a significant issue in particle physics: the ordering of neutrino masses [1][9] Group 1 - The JUNO detector is located 700 meters underground near Jiangmen, Guangdong Province, and can detect neutrinos produced by the Taishan and Yangjiang nuclear power plants, measuring their energy spectrum with unprecedented precision [2] - Unlike similar international experiments, JUNO's measurement of mass ordering is unaffected by terrestrial material effects and other unknown neutrino oscillation parameters, significantly improving the precision of three out of six neutrino oscillation parameters [2] Group 2 - The JUNO project was proposed by the Institute of High Energy Physics, Chinese Academy of Sciences in 2008, received strategic support in 2013, and began construction of the underground laboratory in 2015 [5] - The laboratory construction was completed in December 2021, and the detector installation began, with the infusion of ultra-pure water and liquid scintillator starting in December 2024 [5] - The project team successfully infused over 60,000 tons of ultra-pure water within 45 days, maintaining a liquid level difference within centimeters and a flow deviation of no more than 0.5%, ensuring the safety and stability of the detector structure [5] Group 3 - The core detector of JUNO has an effective mass of 20,000 tons and is located in a 44-meter deep water pool, featuring a stainless steel mesh shell that supports various critical components, including a 35.4-meter diameter acrylic sphere and numerous photomultiplier tubes [7] - The JUNO project is a major international collaboration led by the Institute of High Energy Physics, involving nearly 700 researchers from 74 institutions across 17 countries and regions [9] - The design lifespan of JUNO is 30 years, with potential upgrades to become the world's most sensitive experiment for neutrinoless double beta decay, which could provide insights into fundamental questions about the nature of matter and the universe [9]
中国地下700米,有了个全球第一
财联社· 2025-08-26 05:47
Core Viewpoint - The Jiangmen Neutrino Experiment (JUNO) has successfully completed the infusion of 20,000 tons of liquid scintillator and has officially begun data collection, marking it as the first operational large-scale and high-precision neutrino-specific scientific facility in the world [1][10]. Group 1: Experiment Overview - The JUNO detector is located 700 meters underground near Jiangmen, Guangdong Province, and can detect neutrinos produced by the Taishan and Yangjiang nuclear power plants, measuring their energy spectrum with unprecedented precision [3]. - The experiment aims to address a significant issue in particle physics over the next decade: the ordering of neutrino masses, and will assist scientists in conducting cutting-edge research on neutrinos from the sun, supernovae, atmosphere, and Earth [1][9]. Group 2: Construction and Technical Details - The JUNO project was proposed by the Institute of High Energy Physics, Chinese Academy of Sciences in 2008, received support in 2013, and began construction in 2015. The laboratory was completed in December 2021, with the detector installation starting thereafter [5]. - The infusion process involved over 60,000 tons of ultra-pure water completed in 45 days, with strict control over liquid levels and flow deviations, ensuring the safety and stability of the detector structure [5]. - The core detector, with an effective mass of 20,000 tons, is housed in a 44-meter deep pool and consists of a 35.4-meter diameter acrylic sphere, 20,000 20-inch photomultiplier tubes, and 25,000 3-inch photomultiplier tubes [7]. Group 3: Future Prospects - The JUNO experiment is a major international collaboration involving nearly 700 researchers from 74 institutions across 17 countries and regions, with a design lifespan of 30 years [9]. - Future upgrades could transform JUNO into the world's most sensitive experiment for neutrinoless double beta decay, potentially answering fundamental questions about the nature of neutrinos and the universe [9].
【中国新闻网】中国江门中微子实验正式运行 将回答物质和宇宙本质问题
Zhong Guo Xin Wen Wang· 2025-08-26 01:33
Core Viewpoint - The Jiangmen Neutrino Experiment (JUNO) has successfully completed the filling of 20,000 tons of liquid scintillator and has officially begun data collection, marking a significant milestone in neutrino research and particle physics [3][4]. Group 1: Experiment Overview - JUNO is the first large-scale neutrino experiment of its kind in the world, designed to address fundamental questions about the nature of matter and the universe [3]. - The experiment is located 700 meters underground in Jiangmen, Guangdong Province, and can detect neutrinos from nuclear power plants located 53 kilometers away [4]. - The design lifespan of the JUNO project is 30 years, with potential upgrades to enhance its sensitivity for future experiments [4]. Group 2: Technical Achievements - The initial data collected during the trial operation indicates that the detector's key performance metrics have met or exceeded design expectations [4]. - The experiment aims to resolve significant issues in particle physics, such as the mass ordering of neutrinos, specifically whether the third type of neutrino is heavier than the second [4]. Group 3: International Collaboration - The JUNO project involves collaboration among 700 researchers from 74 institutions across 17 countries and regions, highlighting its international significance [5]. - The success of the experiment is attributed to effective international cooperation, particularly in advancing liquid scintillator detection technology [5]. Group 4: Construction and Technical Requirements - The construction of JUNO required meticulous planning, testing, and adherence to strict material purity and safety standards [6]. - The core detector consists of a 20,000-ton liquid scintillator housed in a 41.1-meter diameter stainless steel structure, equipped with thousands of photomultiplier tubes to detect neutrino interactions [7][8].
中国江门中微子实验正式运行 将回答物质和宇宙本质问题
Zhong Guo Xin Wen Wang· 2025-08-26 00:18
Core Insights - The Jiangmen Neutrino Experiment (JUNO) has officially commenced operations, marking the first large-scale neutrino experiment of its kind globally, aimed at addressing fundamental questions about the nature of matter and the universe [1][4]. Group 1: Experiment Overview - The JUNO detector is located 700 meters underground in Jiangmen, Guangdong Province, and is capable of detecting neutrinos from nuclear power plants located 53 kilometers away, with unprecedented precision in measuring their energy spectrum [2][4]. - The experiment has achieved key performance indicators that meet or exceed design expectations, enabling it to tackle significant questions in particle physics, such as the mass ordering of neutrinos [4][6]. Group 2: Technical Specifications - The core detector of JUNO has an effective mass of 20,000 tons of liquid scintillator, housed in a stainless steel structure with a diameter of 41.1 meters, and is equipped with numerous photomultiplier tubes to detect scintillation light produced by neutrino interactions [10][11]. - The project has stringent requirements for the purity, transparency, and low radioactivity of the liquid scintillator, all of which have been successfully met [10]. Group 3: International Collaboration - The JUNO project is a major international collaboration involving 700 researchers from 74 institutions across 17 countries and regions, highlighting the importance of global cooperation in advancing scientific research [6][8]. - The success of the JUNO experiment is attributed to effective international collaboration, particularly in pushing the limits of liquid scintillator detection technology [6]. Group 4: Future Prospects - The design lifespan of the JUNO experiment is projected to be 30 years, with potential upgrades to become the world's most sensitive experiment for neutrinoless double beta decay, which could provide insights into the absolute mass of neutrinos and whether they are Majorana particles [4][5]. - The experiment will significantly enhance the precision of three out of six neutrino oscillation parameters and open new avenues for exploring unknown physics, including searches for sterile neutrinos and proton decay [7].
大国重器传来好消息!江门中微子实验大科学装置正式运行
Yang Shi Xin Wen· 2025-08-26 00:02
Core Insights - The Jiangmen Underground Neutrino Observatory (JUNO) has successfully completed the filling of 20,000 tons of liquid scintillator and has officially begun data collection, marking it as the first large-scale and high-precision neutrino-specific scientific facility in operation globally [1][2] Group 1: Project Overview - The JUNO project was proposed by the Institute of High Energy Physics, Chinese Academy of Sciences in 2008, receiving strategic support in 2013 and commencing construction in 2015 [2] - The detector is located 700 meters underground in Jiangmen, Guangdong Province, and is capable of detecting neutrinos from nuclear power plants located 53 kilometers away [1][2] Group 2: Technical Achievements - The initial data collected during the trial operation indicates that the key performance indicators of the JUNO detector have met or exceeded design expectations, enabling it to address significant questions in particle physics, particularly neutrino mass ordering [1][3] - The detector's design includes a 20,000-ton liquid scintillator and a complex structure with various components, including 20,000 photomultiplier tubes, ensuring high precision in measuring neutrino interactions [3] Group 3: Future Implications - The JUNO experiment has a planned operational lifespan of 30 years and can be upgraded to become the world's most sensitive experiment for neutrinoless double beta decay, which could provide insights into fundamental questions about the universe [3] - The spokesperson for the JUNO collaboration emphasized that the completion of the detector filling and the start of data collection represents a breakthrough in understanding the nature of matter and the universe [3]