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Breakthrough in High-Energy Nuclear Physics Research: Chinese Research Team Leverages CERN's Large Hadron Collider to Reveal How Nuclear Geometry Influences Matter Flow

Relying on the A Large Ion Collider Experiment (ALICE) at the Large Hadron Collider (LHC), the research team led by Professor Li Xiaomei at the National Key Laboratory of Nuclear Data, China Institute of Atomic Energy (CIAE), in international collaboration with the team led by Professor Zhou You at the Niels Bohr Institute, University of Copenhagen, Denmark, conducted research. The joint team studied the Oxygen-16 (Oxygen-16, $^{16}\text{O}$) and Neon-20 (Neon-20, $^{20}\text{Ne}$) light-nucleus collision system and achieved important progress regarding collective flow phenomena dominated by nuclear structure, confirming that the spatial geometric configuration of atomic nuclei can directly regulate the laws of matter flow in high-energy nuclear collisions, providing key experimental constraints for improving relativistic heavy-ion collision theory and resolving microscopic nuclear structure.

2026-09-24

CGN and the People's Government of Sichuan Province Sign a Strategic Cooperation Agreement

On September 21, China General Nuclear Power Group Co., Ltd. and the People's Government of Sichuan Province signed a strategic cooperation agreement in Chengdu. Wang Xiaohui, Secretary of the Sichuan Provincial Party Committee and Director of the Standing Committee of the Sichuan Provincial People's Congress, Shi Xiaolin, Deputy Secretary of the Provincial Party Committee and Governor, held a working meeting with Yang Changli, Secretary of the Party Committee and Chairman of China General Nuclear Power Group Co., Ltd., and Pang Songtao, Deputy Secretary of the Party Committee and General Manager, and together witnessed the signing of the agreement. During the meeting, the two sides, focusing on implementing General Secretary Xi Jinping's important instructions on Sichuan's work and the decisions and arrangements of the Party Central Committee, exchanged views on deepening strategic cooperation during the 15th Five-Year Plan period, further optimizing the investment layout in Sichuan, promoting clean energy development and construction, strengthening the high-end energy equipment manufacturing industry, and advancing...

2026-09-22

Professor Yan Lixin's Research Group in the Department of Engineering Physics at Tsinghua University Collaborates to Achieve a Beyond-Megawatt Average Power Laser Optical Enhancement Cavity

Recently, the research group of Professor Yan Lixin from the Department of Engineering Physics at Tsinghua University, in collaboration with the team of Professor Fabian Zomer from IJCLab at Université Paris-Saclay, France, published important progress in the field of high-finesse optical enhancement cavities. The research team achieved a four-mirror bow-tie optical cavity with an average laser power exceeding 1 megawatt and its stable operation at the Tsinghua University Accelerator Laboratory, with a maximum intracavity average power of 1.15 MW, while maintaining an excellent Gaussian fundamental mode. This is the first published work internationally on an optical enhancement cavity with an intracavity average laser power reaching the megawatt level, which will lay a solid foundation for important applications such as the development of steady-state microbunching (SSMB) extreme ultraviolet light sources, quantum electrodynamics (QED) vacuum nonlinearity detection, ion beam photoneutralization for magnetic confinement fusion, and the development of future inertial confinement fusion reactors.

2026-09-18

The Nuclear Medicine Full-Chain High-Quality Development Empowerment Training Program Was Successfully Held in Mianyang, Sichuan

From September 6 to 11, the Nuclear Medicine Full-Chain High-Quality Development Empowerment Training Program, hosted by the Department of Human Resources and Social Security of Sichuan Province and organized by Mianyang Central Hospital, was successfully held in Mianyang, Sichuan. Hundreds of nuclear medicine peers from all over the country, including Beijing, Shanghai, Guangzhou, Tianjin, Chongqing, and Chengdu, completed all course studies and returned to their posts fully loaded with training results. This training was hosted by the Department of Human Resources and Social Security of Sichuan Province, organized by Mianyang Central Hospital, and co-organized by multiple departments including the Mianyang Municipal Human Resources and Social Security Bureau and the Fourth Division of Science and Technology Innovation and Industrial Innovation Integration Development of Mianyang Science and Technology City. The training content focused on nuclear medicine from laboratory research and development to clinical application...

2026-09-14

First Supercapacitor Pulsed Power Supply System of the HL-3 Upgrade Project Successfully Handed Over

On September 10, the 300MVA/3000MJ supercapacitor pulsed power supply system of the HL-3 upgrade project was successfully handed over. This is the first system of the project to complete handover, marking that the project construction is gradually transitioning from the equipment installation and subsystem static commissioning stage to the system joint commissioning stage, providing support for advancing fusion engineering. Zhang Libo, President and Deputy Secretary of the Party Committee of the Southwestern Institute of Physics, and Chen Qingchuan, Vice President, attended the handover ceremony. Zhang Libo stated at the ceremony that the completion of the handover of the first system is the result of collaborative efforts by all participating units, accumulating experience and creating conditions for subsequent system joint commissioning. All parties will continue to consolidate responsibilities and advance key milestones on schedule....

2026-09-12

Sichuan Energy Nuclear Industry Co., Ltd. Established in Chengdu, Focusing on Advanced Nuclear Microreactor R&D

On September 9, according to Chengdu Sci-Tech Innovation Investment Group, Sichuan Energy Nuclear Industry Co., Ltd. recently completed its establishment in Chengdu with a registered capital of 1 billion yuan. The company was jointly funded and established by Chengdu Sci-Tech Innovation Investment Group through its Chengdu Future Industry Venture Capital Fund, together with Sichuan Energy Development Group, China Nuclear Power Research and Design Institute, Shenzhen Capital Group, and other state-owned capital entities, with its registered address in Chengdu. According to disclosed information, Sichuan Energy Nuclear Industry Co., Ltd. will mainly focus on advanced nuclear microreactor technology R&D iteration, industrialization implementation, and green energy technology layout, positioned as a resource integration center, R&D innovation center, and investment decision-making center, with priority on advancing advanced multi-purpose...

2026-09-10

US Study Says Third Course of Radiation Therapy May Improve Survival and Symptoms in Children with Recurrent DIPG

According to news from the Icahn School of Medicine at Mount Sinai in the United States on September 2, researchers at the institution released a new study on re-irradiation for recurrent diffuse intrinsic pontine glioma (DIPG). The study shows that carefully selected pediatric patients who receive a third course of radiation therapy after disease recurrence may achieve symptom relief, improved quality of life, and potentially prolonged survival. The related study has been published in Practical Radiation Oncology. DIPG is a highly aggressive pediatric brain tumor that occurs in the brainstem region. The brainstem controls critical life functions such as breathing and movement, so the tumor usually cannot be removed surgically. Data show that DIPG mainly affects children aged 5 to 10, and even...

2026-09-10

Rosatom Launches Full-Cycle Production of High-Purity Germanium Detectors

Rosatom announced on September 9 that its subsidiary enterprises have begun producing detectors made of high-purity germanium and have established a complete domestic technology chain in Russia, from deep purification of germanium raw materials and detector manufacturing to the assembly of spectrometers and measurement instruments. The final stage of this production chain is located at a new production facility of a plant under Rosatom's Automated Control Systems and Electrical Engineering Division. To meet the requirements for processing ultrapure materials, the facility has specially built a cleanroom compliant with ISO Class 8 standards to reduce contamination of germanium materials, improve product stability and extend equipment service life. High-purity germanium detectors are a key...

2026-09-10

Shanghai Jiao Tong University and Sichuan Provincial Cultural Relics and Archaeology Research Institute to Jointly Build Neutron Cultural Heritage Protection Laboratory

On September 2, Shanghai Jiao Tong University and the Sichuan Provincial Cultural Relics and Archaeology Research Institute signed a strategic cooperation agreement to jointly advance the construction of the Neutron Cultural Heritage Protection Laboratory, promoting the deep integration of modern technology and cultural heritage conservation. Yang Zhenbin, Party Secretary of Shanghai Jiao Tong University, and Pu Xin, Deputy Director of the Sichuan Provincial Cultural Heritage Administration, delivered speeches respectively and jointly witnessed the signing. The collaboration focuses on the scientific research, conservation, and transmission of significant cultural heritage sites including Sanxingdui. The Sanxingdui site is a vital component of the Chinese Civilization Exploration Project. With the continuous advancement of archaeological excavations in recent years, a large number of precious artifacts have been unearthed, with increasingly complex structures and materials. How to accurately obtain their internal structure, material composition, manufacturing techniques, and preservation status without damaging the artifacts themselves has become a critical issue in cultural heritage conservation and archaeological research...

2026-09-08

CERN Accelerator Control Systems to Migrate to Debian 13

Representatives from the European Organization for Nuclear Research (CERN) stated at the MiniDebConf conference that they plan to migrate over 2,200 industrial and embedded computers used to control their accelerator complex from RHEL to Debian 13 by the end of 2026. The systems involved include control computers for the Large Hadron Collider as well as several independent experimental facilities. CERN also clarified that this migration applies only to accelerator control-related equipment and will not affect data centers or experimental systems. Those data centers and experimental systems will continue to use RHEL/AlmaLinux. According to reports, CERN engineers had previously considered migrating the relevant systems to CentOS Stream, but...

2026-09-08

IAEA Technical Meeting on Data Requirements for Ion Beam Analysis Explores Prospects for Nuclear Track Emulsion Applications

From 24 to 28 August 2026, the International Atomic Energy Agency convened a Technical Meeting on Data Requirements for Ion Beam Analysis Experiments in Vienna, Austria, attended by scientists and experts from multiple nuclear physics research institutions. The meeting discussed the nuclear data requirements for current and future applications of ion beam analysis, with attention to new experimental methods and the application of artificial intelligence and machine learning in experiments and data processing. The meeting focused on assessing whether existing nuclear data can meet the needs of ion beam analysis applications, covering areas such as elastic recoil cross sections, nuclear reaction data, and gamma-ray spectrum analysis. Experts discussed the limitations that insufficient existing data impose on quantitative analysis and uncertainty assessment...

2026-09-08

XENONnT Observes First Low-Energy Solar Neutrino-Electron Scattering Signals

Scientists of the XENON collaboration recently announced the first observation of low-energy solar neutrino scattering off electrons in the XENONnT particle detector. The results were presented at a workshop held on August 31, 2026, at the Gran Sasso National Laboratory of the Italian National Institute for Nuclear Physics. The team of Prof. Teresa Marrodán Undagoitia and Dr. Hardy Simgen from the Max Planck Institute for Nuclear Physics played a key role in the experiment. Nuclear fusion in the Sun continuously produces vast numbers of neutrinos, with hundreds of billions passing through every square centimeter of Earth each second. Because neutrinos interact with matter extremely weakly, detecting these particles...

2026-09-07

No Evidence of Mirror Neutrons Found in Swiss PSI Ultracold Neutron Experiment

The Ultracold Neutron Physics Group at the Paul Scherrer Institute (PSI) in Switzerland recently stated that its research team found no evidence of spontaneous transformation of ordinary neutrons into mirror neutrons in a high-precision experiment. The researchers said the result essentially rules out the main parameter space previously suggested for anomalous neutron-mirror neutron oscillation signals, and also weakens the possibility that mirror neutrons could be a component of dark matter. Bernhard Lauss (left) and Géza Zsigmond examined approximately 2.5 billion neutrons at the ultracold neutron source at the Paul Scherrer Institute (PSI). They essentially ruled out the hypothesis of spontaneous transformation of neutrons into mirror neutrons. (Image courtesy of Paul Scherrer Institute PSI/Ma...

2026-09-07

Japanese research team accelerates muons to 0.3 MeV, taking a step toward the world's only muon accelerator

A research team comprising the J-PARC Center, High Energy Accelerator Research Organization (KEK), the University of Tokyo, Tokai National Higher Education and Research System, Nagoya University, and RIKEN recently completed muon cooling and radio-frequency acceleration experiments in the newly constructed muon acceleration experimental area at the J-PARC Materials and Life Science Experimental Facility, successfully accelerating muons to a kinetic energy of 0.3 MeV, corresponding to approximately 8% of the speed of light. Conceptual diagram of cooling and accelerating positive muon beams. By cooling positive muons with non-uniform direction and velocity, efficient high-frequency acceleration can be achieved. Muons are elementary particles similar to electrons that can be artificially produced by accelerators and are widely used in materials science, particle physics research...

2026-09-07

IAEA Meeting Focuses on Data Needs for Ion Beam Analysis, JINR Presents Progress in Nuclear Track Emulsion Research

From August 24 to 28, 2026, the International Atomic Energy Agency held a Technical Meeting on Data Requirements for Ion Beam Analysis in Vienna, Austria, attended by scientists and experts from multiple nuclear physics research institutions. Andrey Zaitsev, Senior Researcher at the High Energy Physics Laboratory of the Joint Institute for Nuclear Research, delivered a report at the meeting, presenting the current performance of nuclear track emulsions and research progress related to the BECQUEREL project. The meeting focused on assessing whether existing nuclear data can meet current and future application needs of ion beam analysis, and discussed new experimental methods, as well as the application of artificial intelligence and machine learning in experiments and data processing. Topics included elastic backscattering cross sections, nuclear re...

2026-09-05