Workflow
高能直接几何非弹性中子散射谱仪
icon
Search documents
【央视新闻】我国首台高能直接几何非弹性中子散射谱仪通过验收
Yang Shi Xin Wen· 2025-11-18 02:05
Core Insights - The first high-energy direct geometric inelastic neutron scattering spectrometer in China has passed acceptance testing and is ready for scientific experiments [2][3] - This spectrometer fills a gap in high-energy inelastic neutron scattering capabilities above 100 meV in China, providing a significant research platform for various fields including thermoelectric materials, magnetic materials, high-temperature superconductors, energy materials, and biological materials [2] - The spectrometer is capable of observing dynamic processes at the atomic and molecular levels on a picosecond timescale, allowing for real-time monitoring of vibrations, rotations, and energy transfer within materials [2] Development and Technical Specifications - Construction of the high-energy inelastic neutron scattering spectrometer began in September 2019, featuring innovative designs in multi-beam experimental modes and self-developed components [3] - Key technologies developed include the Fermi chopper, large vacuum scattering chamber, neutron scattering-compatible magnetic sample environment, and large-area high-pressure helium-3 neutron detectors [3] - The spectrometer has an incident neutron energy range of 10-1500 meV, with a best energy resolution of 3%, and performance metrics that meet international advanced levels [3] Future Applications and Availability - Following acceptance, the spectrometer will enter a trial operation phase, with plans to officially open to users in 2026 [3] - It will support cutting-edge research in areas such as high-temperature superconductivity, quantum magnetic mechanisms, thermoelectric material transport properties, ion diffusion mechanisms in batteries, and the activity of biological materials [3]
【中国新闻网】我国首台高能直接几何非弹性中子散射谱仪通过验收
Zhong Guo Xin Wen Wang· 2025-11-18 02:05
Core Insights - The first high-energy direct geometric inelastic neutron scattering spectrometer in China has been successfully accepted, marking a significant advancement in the field of neutron scattering research [1][2] - This spectrometer fills a gap in the availability of high-energy inelastic neutron scattering instruments above 100 meV in China, providing a crucial research platform for various materials [1] - The spectrometer is designed to expand research capabilities from static material structures to dynamic material behaviors [1] Group 1 - The high-energy inelastic neutron scattering spectrometer, developed by Sun Yat-sen University and the China Spallation Neutron Source Science Center, is referred to as a "super camera" [1] - It began construction in September 2019 and features innovative designs in multi-beam experimental modes, with several self-developed components [1] - The spectrometer achieved its first neutron beam detection on January 12, 2023, after two years of debugging, with an incident neutron energy range of 10-1500 meV and a best energy resolution of 3% [1] Group 2 - The spectrometer utilizes the unique properties of neutrons, such as being electrically neutral and having strong penetration capabilities, to directly probe the microscopic movements within materials [2] - It can detect dynamic processes of atoms and molecules on a picosecond timescale, effectively allowing for "video" recording of material behaviors, unlike other spectrometers that only provide "photographs" [2] - Following its acceptance, the spectrometer will enter a trial operation phase and is expected to be officially available to users by 2026, supporting advanced research in high-temperature superconductivity, quantum magnetism, thermoelectric materials, and more [2]
【8点见】媒体就“免费砍白菜”失实报道致歉
Yang Shi Wang· 2025-11-18 00:05
Group 1 - China's fiscal revenue for the first ten months reached 18.649 trillion yuan, showing a year-on-year growth of 0.8% [4] - The market regulation authority is promoting the inclusion of health food in the duty-free shop business category [4] - The estimated market size of China's water-saving industry exceeds 760 billion yuan [4] Group 2 - The first high-energy direct geometry inelastic neutron scattering spectrometer in China has passed acceptance, filling a gap in the country's mid-high energy inelastic neutron scattering instruments above 100 meV [3]
我国首台高能直接几何非弹性中子散射谱仪通过验收
Yang Shi Xin Wen· 2025-11-17 02:27
Core Insights - The first high-energy direct geometric inelastic neutron scattering spectrometer in China has passed acceptance and is ready for scientific experiments [1][2] - This spectrometer fills a gap in high-energy inelastic neutron scattering instruments above 100 meV in China and will support research in various fields such as thermoelectric materials, magnetic materials, high-temperature superconductors, energy materials, and life materials [1][2] - The spectrometer is capable of observing dynamic processes at the atomic and molecular levels on a picosecond timescale, providing a significant advancement in material dynamics research [1][2] Development and Features - Construction of the high-energy inelastic neutron scattering spectrometer began in September 2019, featuring innovative designs in multi-beam experimental modes and self-developed components [2] - Key technologies developed include the Fermi chopper, large vacuum scattering chamber, neutron scattering-compatible magnetic sample environment, and large-area high-pressure helium-3 neutron detectors [2] - The spectrometer has an incident neutron energy range of 10-1500 meV, with a best energy resolution of 3%, achieving performance levels that meet international standards [2] Future Applications - After passing acceptance, the spectrometer will enter a trial operation phase and is expected to be officially open to users by 2026 [2] - It will provide substantial support for cutting-edge research in areas such as high-temperature superconductivity mechanisms, quantum magnetic interactions, thermoelectric material transport properties, ion diffusion mechanisms in batteries, and biological material activity [2]