Search Results

First Validation of Novel PRI Technology: Existing PET Tracers Can Image Tissue Microenvironment

August 6, 2026 - A joint research team from the Graduate School of Engineering at the University of Tokyo and the University of York in the UK announced that they have established a novel geometric imaging principle utilizing positron three-photon decay and successfully validated Positronium Ratio Imaging (PRI) technology for the first time. This method can be used in conjunction with existing clinical PET tracers and is expected to provide a new means of observing tissue microenvironments in nuclear medicine imaging. Conceptual diagram of next-generation nuclear medicine imaging utilizing positron-3-photon decay. Current clinical PET scans primarily rely on the positron two-photon annihilation process to visualize the distribution and accumulation of tracers in the body, but they provide limited information on microenvironmental factors such as tissue hypoxia that are associated with disease malignancy...

2026-08-07

First Observation of Anti-Kaonic Nuclei in Photon Beam Experiments

The LEPS2/Solenoid collaboration, composed of researchers from the Research Center for Nuclear Physics at Osaka University, Kyoto Sangyo University, the Research Center for Advanced Quantum Beam Science at Tohoku University, Korea University, Gifu University, the Institute of Modern Physics of the Chinese Academy of Sciences, RIKEN, Kyoto University, the Institute of Physics at Academia Sinica in Taiwan, and the University of Saskatchewan in Canada, has for the first time observed nuclei containing anti-kaons in a photon beam experiment. This achievement provides new experimental evidence confirming the existence of anti-kaonic nuclei and offers important clues for understanding high-density nuclear matter and the internal structure of neutron stars. The research team conducted the experiment at the LEPS2 laser-electron photon facility at the large synchrotron radiation facility SPring-8 in Hyogo Prefecture, Japan...

2026-08-07

Radioactivity test results for agricultural and fishery products in North Chungcheong Province, South Korea, pass standards in first half of the year

The Chungcheongbuk-do Institute of Health and Environment announced on August 7 that it conducted radioactivity safety testing on agricultural and fishery products sold and used within the province in the first half of this year, and the results showed that all relevant samples met food radioactivity safety standards. The testing covered 119 types of agricultural products and 274 types of fishery products sold at large supermarkets, local food direct-sale stores, or used as ingredients for school meals. Testing items included indicators such as radioactive iodine, radioactive cesium, and tritium. The test results showed that the levels of radioactive iodine and radioactive cesium in the samples did not exceed the permissible limit of 100 Bq/kg for food radioactivity; tritium was not detected in any of the 80 seafood samples. The relevant test results can be found on the Chungcheongbuk-do Institute of Health and Environment website.

2026-08-07

Construction of Proton Therapy Center in Ulsan, South Korea Faces Hurdles: Government Funding Allocation Adjustments Impact Project Progress

The proton therapy center construction project in Ulsan, South Korea, has recently encountered obstacles to progress. The project was once regarded as a key component in improving the regional cancer treatment system in southeastern South Korea, but due to shifts in government medical financial support priorities, the difficulty of securing large-scale national funding independently has increased significantly. According to information from Ulsan City on August 6, Ulsan City completed the feasibility study and basic planning services for the proton therapy center construction in March of last year and began seeking national funding. However, the Ministry of Health and Welfare responded that it would be difficult to provide large-scale project funding to Ulsan City alone. Previously, Ulsan City had planned to establish a proton therapy center to build a system enabling cancer patients to undergo surgery...

2026-08-07

UK's MAST Upgrade sets plasma pressure record in fifth experimental campaign

The UK Atomic Energy Authority (UKAEA) has completed the fifth experimental campaign of its flagship fusion experiment, MAST Upgrade. The campaign, conducted between 2025 and 2026 at the Culham Campus in Oxfordshire, UK, produced over 1,100 plasma pulses and achieved the device's highest-ever plasma pressure while overcoming plasma instability issues. In fusion devices, hydrogen isotopes must be heated, compressed, and confined under extremely high temperatures and pressures. The higher the plasma density and temperature, the stronger the fusion reaction, and high-pressure plasmas are also closer to the operating conditions required for future commercial fusion power plants. UKAEA stated that this...

2026-08-07

Mutsu City in Japan agrees to study receiving fuel from other companies at interim spent fuel storage facility

On August 7, Mutsu City in Aomori Prefecture, Japan, notified Tokyo Electric Power Company Holdings (TEPCO Holdings) and Japan Atomic Power Company (JAPC) that it agreed to allow the two companies to study a plan to receive spent nuclear fuel from other electric power companies at the local interim spent fuel storage facility. The facility, promoted and constructed by entities related to the two companies, is the only facility in Japan located outside nuclear power plant sites for interim storage of spent nuclear fuel. Under the current arrangement, the facility only accepts spent nuclear fuel from TEPCO Holdings and JAPC, and spent nuclear fuel from other companies is not permitted to be transported in. On the same day, Mutsu City Mayor Tomoya Yamamoto met with senior executives of the two companies at City Hall...

2026-08-07

IAEA Publishes Technical Document on Emergency Planning Zones for Small Modular Reactors

The International Atomic Energy Agency (IAEA) has published TECDOC Series No. 2134, "Technical Basis for the Emergency Planning Zone for Small Modular Reactors." The document was published in Vienna in 2026, comprising 132 pages with 11 illustrations, in English. This document marks the first time the IAEA has published the results of a Coordinated Research Project (CRP) on the technical basis for emergency planning zones for Small Modular Reactor (SMR) deployment. The research project was conducted from 2018 to 2021, focusing on how to determine the technical basis for off-site emergency preparedness and response (EPR) arrangements in SMR deployment scenarios, particularly the requirements and scope for establishing emergency planning zones (EPZ).

2026-08-07

Sevmash Advances Production of Main Thrust Bearings for Icebreaker "Stalingrad"

Sevmash, a subsidiary of the United Shipbuilding Corporation (USC), is continuing production of the main thrust bearings for the Stalingrad, the sixth serial universal icebreaker of Project 22220. One set of bearings for this vessel comprises three bearing units. Currently, two of these units have been delivered to Workshop 16 for bearing housing machining; the bearing raceways are also being machined and assembled in this workshop. The housing of the third unit is being assembled in the plant's hull welding shop. Meanwhile, in a dedicated area of Sevmash Workshop 4, bearing internal filling operations are underway, including the manufacture of bushings and bearing housings with anti-friction layers and filling with hot Babbitt metal. Each unit requires the installation of 24 bearing housings. This stage is one of the most labor-intensive processes in bearing manufacturing.

2026-08-07

Rostec's RosEl Delivers First Batch of Vulkan Magnetic Contact Sensors

RosEl Holding Company (RosEl), a subsidiary of Rostec, has delivered the first batch of Vulkan magnetic contact sensors to customers. The product is designed for high-pressure steam pipeline applications and can be used in automation and signaling systems, including those at nuclear power plants. According to reports, Vulkan sensors are installed inside steam pipeline valves and are primarily used to monitor and control the valve closing process. The device can operate at temperatures up to 350 degrees Celsius, withstand mechanical shock acceleration of 150g, and achieve seismic category 1 rating, maintaining operational capability under strong earthquake conditions. The sensor features a stainless steel housing and has a design service life of up to 12 years. Its core reed switch...

2026-08-07

Rosatom Completes First Batch of Certification for Energy Critical Information Infrastructure Products

Rosatom has recently completed the first batch of product certification for critical information infrastructure in the fuel and energy sector under the KII-Sert voluntary certification system. The certification system has been operating in Russia's nuclear energy and aerospace industries since 2024, primarily used to assess the reliability, technological independence, and sustainability of solutions related to critical information infrastructure. The certification was carried out by Atomenergoproekt JSC, part of Rosatom's engineering division. As an authorized certification body for trusted products and processes within the KII-Sert system, the company, in cooperation with the industrial testing laboratory Avtomatika-Servis LLC, certified a software and hardware system used in the oil and gas industry.

2026-08-07

Newcleo Initiates U.S. Regulatory Pre-Application Engagement for MOX Fuel Facility, Accelerating Advanced Reactor Fuel Supply Chain Development

Advanced reactor and nuclear fuel company Newcleo has initiated regulatory pre-application engagement with the U.S. Nuclear Regulatory Commission (NRC) for a mixed oxide (MOX) fuel fabrication facility, with plans to advance construction at the Savannah River Site in South Carolina. This move indicates that the company is not only advancing the licensing of its advanced reactor itself but also seeking to establish supporting fuel supply capabilities in parallel, aiming to mitigate fuel bottlenecks in future commercial deployment. The submitted regulatory engagement plan represents a key step prior to formal license application, with the core objective of communicating with regulators in advance on facility design, safety standards, review scope, and key technical issues. Newcleo previously submitted its regulatory engagement plan for the LFR-AS-200 lead-cooled fast reactor to the NRC in July...

2026-08-07

Notice of the National Energy Administration on Issuing the "15th Five-Year" Action Plan for Electric Power Safety Production

Notice of the National Energy Administration on Issuing the "15th Five-Year" Action Plan for Electric Power Safety Production To the energy administrations of all provinces (autonomous regions, and municipalities directly under the central government), the development and reform commissions of relevant provinces (autonomous regions, and municipalities directly under the central government) and the Xinjiang Production and Construction Corps, the Beijing Municipal Urban Management Commission, the Tianjin Municipal Bureau of Industry and Information Technology, the Department of Industry and Information Technology of Liaoning Province, the Shanghai Municipal Commission of Economy and Informatization, the Chongqing Municipal Commission of Economy and Informatization, all dispatched agencies, and enterprise member units of the National Electric Power Safety Production Committee: In order to implement the decisions and arrangements of the Party Central Committee and the State Council on strengthening safety production, coordinate development and safety, deeply practice the new energy security strategy of "Four Revolutions and One Cooperation," consolidate the safety foundation for building a strong energy country, continuously improve the level of electric power safety production, and ensure the safe and stable operation of the power system and reliable power supply, the "15th Five-Year" Action Plan for Electric Power Safety Production is hereby formulated. It is now issued for your implementation.

2026-08-07

Chinese Nuclear Safety and Nuclear Industry Delegation Visits Russian Floating Nuclear Thermal Power Plant

From July 28 to 30, representatives from China's National Nuclear Safety Administration, China National Nuclear Corporation (CNNC), and the Chinese Embassy in Russia, together with officials from the Federal Service for Environmental, Technological and Nuclear Supervision of the Russian Federation (Rostechnadzor), jointly visited the floating nuclear thermal power plant located in Pevek, Chukotka Autonomous Okrug. The plant is operated by Rosenergoatom, the power generation division of Rosatom. During the visit, the delegation inspected the floating power unit and onshore facilities, and learned about the operation of key equipment. Chinese experts focused on spent fuel storage, refueling procedures, and related equipment configurations...

2026-08-07

Seoul National University NEXFO Workshop: Exploring Sustainable Solutions for SMR and MMR

On August 7, the Nuclear Policy Center at Seoul National University's Institute for Future Nuclear Energy Policy announced that it will host the Nuclear Energy Sustainability NEXFO Workshop on the afternoon of September 16 at the Seoul National University Global Engineering Education Center. The event, coinciding with the center's 10th anniversary, is themed "Embracing the Era of Full-Scale SMR and MMR Deployment" and will discuss the policy, industrial, and technological conditions for the commercialization of small modular reactors and micro modular reactors. The workshop will first revisit the public discourse framework on nuclear energy sustainability, and analyze global nuclear fuel cycle trends as well as the domestic challenges facing South Korea. As SMRs and MMRs transition from technology demonstration to practical application, nuclear fuel...

2026-08-07

Taiyuan Jinyuan District Conducts Special Inspection on Radiation Safety

To effectively prevent and mitigate radiation safety risks, the Jinyuan Branch of the Taiyuan Municipal Ecology and Environment Bureau in Shanxi Province recently conducted special on-site inspections of radiation-related units within its jurisdiction, with the goals of comprehensive screening, consolidating responsibilities, improving mechanisms, and eliminating hazards, fully reinforcing corporate primary responsibilities and enhancing the standardized management of the radiation environment. The inspection team successively visited Shanxi International Travel Healthcare Center (Taiyuan Customs Port Outpatient Department) and Taiyuan Qimei Obstetrics and Gynecology Hospital Co., Ltd., strictly adhering to relevant laws and regulations, focusing on verifying the operating conditions of radiation devices, protective conditions in operational areas, safety interlock devices, and warning sign placement, while also conducting detailed reviews of radiation safety management systems, daily protection records, staff training files, emergency plans, and self-inspection assessment materials.

2026-08-07