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China-led International Standard for Estimating RBE-Weighted Absorbed Dose from Acute Exposure Approved for Initiation

According to the International Organization for Standardization (ISO), the international standard ISO25600 "Estimation Method for RBE (Relative Biological Effectiveness)-Weighted Absorbed Dose from Acute Exposure," led by the China Institute of Atomic Energy, has been officially approved for initiation. This is a general methodology international standard led by China in the global field of nuclear and radiation emergency dose assessment. It can provide important support for the rapid estimation and evaluation of acute doses, decision-making on emergency protective actions, international notification and communication, as well as emergency training, exercises, and scientific research, helping to strengthen the scientific rigor and timeliness of global nuclear emergency response, and enhance response capability and standardization. Nuclear and radiation emergency response is a vital guarantee for the sustained and healthy development of the nuclear energy industry...

2026-08-31

NMR Reveals Thermal Self-Organization in Resistive Switching of Organic Conductor by Japanese Team

A joint research team from Tokyo University of Science, the National Institute for Materials Science, and RIKEN in Japan recently used bulk-sensitive ¹H-NMR measurements to reveal the internal electronic state of the organic conductor (d7-DMe-DCNQI)2Cu during resistive switching. The study found that, in the switching state, the material does not form a uniform new electronic phase, but rather a coexistence of metallic and insulating phases within the material. Schematic of bulk-crystal ¹H-NMR measurements Resistive switching refers to the phenomenon in which a material's resistance changes significantly under an applied current or voltage, and has attracted attention in research on correlated electron systems, memory devices, and neuromorphic devices. Previous studies have mostly...

2026-08-31

U.S. Heavy-Ion Collision Research Suggests Protons and Neutrons May Not Be Just "Three Quarks"

The STAR Collaboration at the Relativistic Heavy Ion Collider (RHIC) at the U.S. Department of Energy's Brookhaven National Laboratory recently proposed, based on heavy-ion collision data studies, that baryons such as protons and neutrons may not be simply composed of three valence quarks, and that their baryon number may be more closely related to "baryon junctions" in the gluon field. The findings were published in the journal *Science*. In the traditional valence quark model, each quark is assigned a baryon number of 1/3, so baryons such as protons and neutrons, composed of three quarks, carry a baryon number of +1. However, this model is not a fundamental requirement of quantum chromodynamics (QCD). As early as the 1970s, alternative explanations had been proposed in the theoretical community; in 1996, Dmitri Kharzeev proposed a model suggesting that the baryon number is not necessarily carried by the quarks themselves, but may instead be concentrated at the Y-shaped junction formed by the gluon field—the "baryon junction."

2026-08-31

Two Projects of the National Natural Science Foundation of China Approved for the National Institute for Radiological Protection, China CDC

On August 26, the National Natural Science Foundation of China (NSFC) announced the review results of the centralized application projects for the fiscal year 2026. The National Institute for Radiological Protection, China CDC, was approved for two NSFC projects, with research directions covering radon exposure monitoring, radiological health, and screening of lung cancer-related biomarkers. Among the approved projects, the proposal titled "New Strategy for Radon Exposure Monitoring: Visualization and Mechanism Study of Adsorption-Detection Integrated Gold Nanoparticle Materials" submitted by Associate Researcher Song Yanchao received support from the Department of Mathematical and Physical Sciences; the proposal titled "Preliminary Study and Validation of Screening Lung Cancer-Related Biomarkers in Radon-Exposed Miners Based on Methylation Chips and RNA-seq" submitted by Assistant Researcher Zhang Pinhua received support from the Department of Health Sciences.

2026-08-31

Japan Atomic Energy Agency discovers magnetic "strong-weak waves" in uranium semiconductor

The Japan Atomic Energy Agency announced on August 21 that its research team has discovered a special magnetic structure in the layered uranium semiconductor α-UTe3 (α-uranium tritelluride): the magnetism of uranium atoms not only alternates in opposite directions, but its magnetization intensity also periodically strengthens and weakens depending on the crystal position, forming a state resembling “strong-weak waves.” α-UTe3 is composed of uranium and tellurium atoms and belongs to van der Waals layered materials, where atomic layers are stacked through weak interlayer forces. Using high-quality α-UTe3 single crystals, the research team analyzed its low-temperature magnetic structure through resistivity, specific heat, and magnetization measurements, as well as nuclear magnetic resonance and single-crystal neutron diffraction techniques...

2026-08-31

U.S. Electron-Ion Collider ePIC Detector Completes First Batch of Lead Tungstate Crystal Procurement and Acceptance

The U.S. Electron-Ion Collider (EIC) project recently achieved its first long-lead procurement milestone: 1,069 custom lead tungstate crystals for the new ePIC detector have been delivered, tested, and accepted. These crystals will be used in the Electron Endcap Electromagnetic Calorimeter (EEEMCAL) to help precisely measure the energy of scattered electrons during collisions. The EIC is being built by the U.S. Department of Energy's Brookhaven National Laboratory, in collaboration with the Thomas Jefferson National Accelerator Facility. The facility will circulate electron and ion beams in opposite directions, colliding them inside the ePIC detector. The ePIC detector records information about particles produced in the collisions, providing data for studying the fundamental constituents of visible matter...

2026-08-31

Ukraine Advances Modernization of Odesa Radioactive Waste Management System

The State Agency of Ukraine for Exclusion Zone Management (SAUEZM) recently organized a working meeting in Odesa to discuss the modernization of the radioactive waste management system and the implementation progress of related international technical assistance projects. The meeting was held at the Odesa Interregional Branch of the Ukrainian state-owned specialized enterprise "Association Radon," chaired by Oleksiy Budyk, Deputy Head of SAUEZM, with participation from the Joint Support Office (JSO), NT-Engineering LLC, and management and experts of Association Radon. The meeting covered two international technical assistance projects...

2026-08-31

Gallium ion FIB-SEM sample preparation has a damage limit; low-energy argon ion beam cleaning is used to improve TEM sample quality

Gallium ion focused ion beam-scanning electron microscopy (Ga⁺ FIB-SEM) has become an important method for site-specific thin lamella sample preparation for transmission electron microscopy/scanning transmission electron microscopy (TEM/STEM), enabling cutting, extraction, and thinning of target regions at the nanometer scale. However, the literature indicates that while gallium ions provide high-precision machining capability, they also cause amorphization, ion implantation, and localized chemical modification on the sample surface, which can subsequently affect high-resolution imaging and energy dispersive spectroscopy analysis results. According to the literature, Ga⁺ FIB-SEM typically enables high-resolution site-specific machining at 30 keV, but high-energy gallium ions form a damage layer on the sample sidewalls. Taking silicon as an example...

2026-08-31

Portable X-ray Equipment in the U.S. Used for On-Site Assessment of American Football Injuries

As the 2026–2027 American football season approaches, team training camps, player evaluations, and medical support preparations are getting underway. Given the risk of acute sports injuries from the high-intensity physical contact in American football, portable X-ray equipment is being used to improve the efficiency of injury assessment on the sidelines and at training facilities. According to reports, American football players are prone to fractures, sprains, joint dislocations, and contusions. Relevant data indicates that the incidence of severe injuries such as fractures, dislocations, and contusions in this sport is higher than in other sports, with fractures accounting for approximately 10% of all football injuries. Such injuries typically require X-ray radiography to aid diagnosis, but traditional X-ray machines are bulky and fixed in place, usually requiring use in facilities with appropriate shielding. Injured players often need to be transported to the radiology department for examinations, which may delay diagnosis and treatment decisions.

2026-08-31

Finland's 2025 Environmental Radiation Monitoring Shows No Harmful Effects from Nuclear Power Plant Operations

The 2025 environmental radiation monitoring results released recently by the Radiation and Nuclear Safety Authority of Finland (STUK) show that radioactive substance levels in the Finnish environment generally remained low, and the operation of the Loviisa and Olkiluoto nuclear power plants has not caused harmful radiation impacts on the public or the environment. STUK continuously tracks Finland's radiation situation through its environmental radiation monitoring program. The monitoring includes continuous measurement of external radiation, as well as monitoring of radioactive substances in air, radioactive fallout, water bodies, food, and the human body, with the aim of promptly detecting changes in radiation levels and confirming the safety of the living environment. Finland's automatic external radiation monitoring network covers essentially the entire country. In 2025, 255 monitoring...

2026-08-31

Chonnam National University Hospital in Hwasun, South Korea, Adopts Deepnoid's Chest X-ray AI Interpretation Solution "M4CXR"

Deepnoid announced on August 31 that it has signed a supply contract with Chonnam National University Hospital in Hwasun, South Korea, to provide the hospital with its AI-based chest X-ray preliminary opinion generation solution, M4CXR. This contract is part of the "AI Medical System Support Project for Regional Responsible Medical Institutions" promoted by the Ministry of Health and Welfare of South Korea. Chonnam National University Hospital in Hwasun plans to improve the work efficiency of medical staff in interpreting chest X-ray images and further enhance the quality of medical services through the introduction of M4CXR. A representative from the Hwasun branch of Chonnam National University Hospital stated that introducing a generative AI-based image interpretation support system is of great significance for improving the quality of public medical services...

2026-08-31

India's Nuclear Power Expansion Drives Mechanical Seal Demand; Sealmatic Positions Itself in Nuclear-Grade Supply Chain

August 29, 2026 - Sealmatic India Ltd. is leveraging its in-house mechanical seal technology and nuclear application quality certifications to expand into India's nuclear energy equipment supporting market. As India advances its nuclear power capacity expansion, demand for highly reliable mechanical seals in reactors and related pumping systems is expected to grow steadily. Although mechanical seals are not among major primary equipment such as reactors, pumps, or turbines, they play a critical role in the safe, reliable, and continuous operation of nuclear power plants. These products are primarily used in systems including main coolant, reactor coolant, auxiliary feedwater, and emergency core cooling pumps, where seal reliability, operational integrity...

2026-08-31

India and Uzbekistan Agree to Establish Long-Term Uranium Supply Arrangement

India and Uzbekistan held leader-level talks in Tashkent on August 30, deciding to elevate bilateral relations to a comprehensive strategic partnership and agreeing to establish an arrangement for long-term uranium supply from Uzbekistan to India, strengthening cooperation between the two countries in the field of civil nuclear energy. Following talks with Uzbek President Shavkat Mirziyoyev, Indian Prime Minister Narendra Modi stated that the two sides would establish a long-term uranium supply arrangement. The specific scale, duration, and implementation mechanism of the arrangement have not yet been announced. India has in recent years continued to diversify its nuclear fuel sources, and Uzbekistan is an important uranium resource country in Central Asia...

2026-08-31

German Chancellor Links High Electricity Prices to Hasty Nuclear Phase-Out

German Chancellor Friedrich Merz stated that Germany's current high electricity prices are partly attributable to the hasty closure of nuclear power plants. He believes that Germany exited nuclear energy without adequate alternative solutions and now has to bear higher costs for subsequent energy supply arrangements. In an interview, Merz said that the closure of Germany's nuclear plants was not his responsibility, and "if it were up to me, I would not have done this." He noted that the decision has already been made, and the current government cannot change the established facts nor provide a legal guarantee for grid electricity prices over the next 15 years. Merz also mentioned that the impact of the Iran conflict is one of the factors driving up electricity prices. In terms of electricity...

2026-08-31

South Korea's KNR Systems Completes Development of Robotic System for PHWR Decommissioning

KNR Systems announced on August 31 that it has completed the development of a platform system for remote cutting and dismantling of radioactive structures in Pressurized Heavy Water Reactors (PHWR), with final delivery scheduled to commence in September this year. The system originates from a government-commissioned PHWR decommissioning demonstration project. The project, valued at approximately 2.8 billion KRW, was awarded in January last year, with a development period of about seven months. Upon delivery, the equipment will be installed at the Heavy Water Reactor Decommissioning Technology Center of the Korea Research Institute of Decommissioning (KRID) in Gyeongju, for use in PHWR decommissioning demonstrations. Compared with light water reactors, PHWRs have more complex internal structures and typically higher levels of radioactive contamination, making dismantling operations more challenging.

2026-08-31