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Radiation detector malfunction at Unit 2 of Japan's Onagawa Nuclear Power Plant causes hundreds of abnormal reading fluctuations

Tohoku Electric Power Company of Japan announced on August 6 that a detection equipment malfunction occurred at Unit 2 of the Onagawa Nuclear Power Plant, located in Onagawa Town and Ishinomaki City, Miyagi Prefecture. The issue involved detectors used to measure radiation levels in the main steam lines, which transport steam generated by the reactor to the turbine. Among the four detectors, one displayed readings in the central control room that surged and dropped sharply, repeating hundreds of times. Based on publicly available information, Tohoku Electric has classified this incident as a detector malfunction rather than an abnormal release of radioactive materials or a sudden change in reactor operating conditions. The company stated that the situation does not constitute a problem under security regulations, meaning that from...

2026-08-07

US Tennessee Valley Authority Accelerates Negotiations to Deploy Small Modular Reactors at Alabama Bellefonte Site

The US Tennessee Valley Authority (TVA) confirmed it is in active negotiations with industry partners to develop a new nuclear power generation project at the long-idle Bellefonte Nuclear Plant site in North Alabama. TVA Interim CEO Mike Skaggs stated at a nuclear industry conference in Knoxville, Tennessee, that the negotiations are progressing at a rapid pace, with a focus on partnering with GE Vernova Hitachi Nuclear Energy to build small modular reactors at Bellefonte in Alabama and the Clinch River nuclear site in Oak Ridge, Tennessee. TVA emphasized in a statement that no final investment or construction decisions have been made yet, but multiple potential sites are being evaluated...

2026-08-07

Curio, NuScale and Framatome Sign MOU to Advance Next-Generation Nuclear Fuel Cycle Solutions

Curio, NuScale Power and Framatome Inc. recently signed a strategic memorandum of understanding to jointly evaluate integrated nuclear fuel solutions aimed at strengthening the U.S. nuclear fuel supply chain and supporting the international nuclear energy market and the deployment of next-generation nuclear technologies. Under the agreement, the three parties will conduct evaluations centered on Curio's proprietary NuCycle recycling technology, focusing on the conversion pathways of recyclable nuclear materials from "source to product" and from "source to fuel." The collaboration also encompasses future engineering coordination, fuel development, fuel qualification, manufacturing and commercialization, as well as advancing the integration of nuclear supply chain-related segments...

2026-08-07

Three U.S. Nuclear Energy Companies Explore Manufacturing Next-Generation Reactor Fuel from Recycled Nuclear Materials

U.S. nuclear energy companies Curio, NuScale Power, and Framatome have signed a memorandum of understanding to evaluate the feasibility of converting recycled nuclear materials into next-generation reactor fuel and related products. The tri-party collaboration is not focused on immediate commercial production, but rather on research into technical feasibility, fuel development, manufacturing capabilities, supply chain integration, and future commercial deployment, seeking to connect spent fuel recycling, fuel fabrication, and advanced reactor applications into a more complete industrial chain. Under this collaboration, Curio will provide its NuCycle nuclear fuel recycling technology, aiming to recover reusable strategic nuclear materials from spent fuel, with claims of reducing residual waste volume by up to 97%.

2026-08-07

Canadian Nuclear Waste Management Organization Publishes Final Design for Centre of Expertise in Ontario

The Nuclear Waste Management Organization (NWMO) has published the final design for its Centre of Expertise, to be located in the Township of Ignace, Ontario. Ignace is one of the host communities for Canada's deep geological repository project for used nuclear fuel. With an investment of approximately CAD 50 million and expected to open in 2028, the centre is positioned as a key platform supporting the construction and long-term operation of the repository. According to the NWMO, the Centre of Expertise design incorporates input from the local community and will feature flexible multi-purpose spaces, educational areas, public viewing galleries, interactive exhibits, and learning zones, while emphasizing integration with the natural environment and a location that facilitates connection to community amenities...

2026-08-07

Drought Lowers Danube Water Levels, Romania Plans to Restrict Industrial Power Use if Necessary

Romania's Acting Prime Minister Ilie Bolojan said after a cabinet meeting on August 6 that the government has developed a comprehensive risk prevention plan covering multiple risk scenarios, including earthquakes, public health events, and the current drought, with corresponding response measures clearly defined. Under the plan, Romania will establish a national operations center in the energy sector. Bolojan stated that the government will approve on August 7 measures by Transelectrica to take action when necessary: with 24 hours' prior notice, certain industrial users may be disconnected from the national grid. He also emphasized that power supply to ordinary citizens, apartments, and residential users will not be...

2026-08-07

X-Energy and Centrus Sign HALEU Supply Agreement, Accelerating U.S. Advanced Nuclear Fuel Supply Chain

X-Energy and Centrus Energy have signed a low-enriched uranium and high-assay low-enriched uranium supply agreement, marking a more concrete commercialization phase in fuel assurance for U.S. advanced nuclear reactors. Under the agreement, Centrus will provide uranium enrichment services at its American Centrifuge Plant in Pike County, Ohio, with the HALEU to be supplied to X-Energy's fuel subsidiary TRISO-X for the production of TRISO-coated particle fuel at its Oak Ridge, Tennessee fuel fabrication facility, serving the Xe-100 high-temperature gas-cooled small modular reactor. The significance of this agreement lies not only in the supply itself but also in its phased advance payment arrangement. X-Energy will support Centrus through advance payments...

2026-08-07

South Korea to Investigate Seawater Radioactivity Levels Along Maritime Transport Routes for Radioactive Waste

The Korea Atomic Energy Environment Corporation (KAEEC) will conduct an investigation this year into seawater radioactivity levels along the maritime transport routes for radioactive waste from nuclear power plants, in order to assess the radiological environmental impact during the transport of radioactive waste to the Gyeongju low- and intermediate-level radioactive waste disposal facility. According to information released on August 6 by the Korea National Electronic Procurement System, KAEEC recently published a public notice regarding radiation analysis services for seawater samples collected along the maritime transport routes for low- and intermediate-level radioactive waste. Once the contractor is selected, the investigation is scheduled to be completed by the end of this year. Under the arrangement, KAEEC will conduct three maritime transport operations of radioactive waste this year, one each from the Gori, Hanul, and Hanbit nuclear power plants to the Gyeongju disposal facility...

2026-08-07

Self-developed "Dimeng" Engine Powers Trial Operation of Daya Bay Nuclear Power's Real-Scene 3D Twin Platform

Recently, the real-scene 3D twin platform for Daya Bay Nuclear Power, jointly developed by Daya Bay Nuclear Power and Zhike/Simulation Company under CGN Digital Technology, was launched for trial operation. Leveraging the self-developed Dimeng domestic 3D engine from the Simulation Company, the platform integrates multi-source data including 3D models, Gaussian splatting, forward design data, and GIS for the Daya Bay Nuclear Power base. The Dimeng engine is a graphics development tool independently developed by the Simulation Company to address the characteristics of the nuclear power industry, such as dense equipment, complex system interconnections, and scattered data, providing underlying capabilities including model rendering, spatial interaction, physical simulation, and data-driven processing. Building on this foundation, the Simulation Company, in collaboration with Daya Bay Nuclear Power, constructed the real-scene 3D twin platform...

2026-08-07

Unit 2 of Belarusian Nuclear Power Plant Resumes Grid Connection

According to the Belarusian Nuclear Power Plant, Unit 2 of the station was reconnected to the grid on August 4. The plant stated that after completing diagnostic testing of the electrical equipment of Unit 2, the unit was put into operation and reached rated operating parameters. Previously, Unit 2 of the Belarusian Nuclear Power Plant was disconnected from the grid at the end of July.

2026-08-07

Basic research cracks an application challenge that has persisted for nearly half a century: quantitative prediction of neutron irradiation swelling via ion irradiation

Whether advanced nuclear energy systems can operate safely over the long term depends on the ability of structural materials to resist neutron irradiation damage. Neutrons create numerous atomic-scale defects in materials, which gradually aggregate into nanoscale cavities, ultimately causing material swelling, dimensional instability, and performance degradation. However, obtaining high-dose neutron irradiation data often requires years or even more than a decade, with high costs and post-irradiation sample radioactivity; in contrast, ion irradiation can simulate years of accumulated damage within days and is therefore widely adopted (approximately 95% of irradiation experimental data in existing literature come from ion irradiation). But the dose rate of ion irradiation is typically 3—4 orders of magnitude higher than that of neutron irradiation, making direct conversion between the two results difficult. Recently, the research team of Wang Chenxu and Wang Yugang from the Institute of Heavy Ion Physics, School of Physics, and the State Key Laboratory of Nuclear Physics and Nuclear Technology at Peking University, in collaboration with researchers from the University of Tennessee and other institutions, established a quantitative relationship between material swelling and irradiation dose and dose rate at fixed temperatures based on cluster dynamics simulations, theoretical derivations, and ion irradiation experiments, achieving prediction of neutron irradiation swelling using rapid ion irradiation and providing a new tool for rapid screening and lifetime evaluation of nuclear materials.

2026-08-07

New Chair Takes Office for ASME BPV III China International Working Group

On August 4, the 2026 First Working Meeting and the Fourth Chairmanship Election Conference of the ASME Boiler and Pressure Vessel Code Section III (BPV III) China International Working Group (hereinafter referred to as the "Working Group") were held at Shanghai Nuclear Engineering Research and Design Institute (SNERDI). Following a vote by attending committee members, Jiao Ming, Deputy General Manager of the company, was unanimously elected as the new Chair of the Working Group, while Zhou Zhou, Director of the Nuclear Equipment Safety and Reliability Center at China Productivity Center for Machinery, and Jiang Cailin, Vice President of Shanghai Electric Nuclear Power Group, were elected as Vice Chairs. Jiao Ming stated that the Working Group will continue to establish regular communication channels between the domestic industry and ASME, leverage key domestic nuclear power projects, and lead the industry in tackling cutting-edge technologies such as radiography testing of ultra-thick forgings, phased array ultrasonic testing, and additive manufacturing of nuclear equipment...

2026-08-07

Nuclear science helps reduce global food spoilage and waste

On April 10, 2026, the International Atomic Energy Agency introduced several applications of nuclear science in reducing food spoilage and food waste. According to data from the Food and Agriculture Organization of the United Nations, approximately 1 billion tonnes of edible food are wasted globally each year, accounting for about one-fifth of the total food available to consumers. Of this, 13.2% of food is lost before reaching the retail stage, valued at approximately $400 billion; another 19% is wasted at the retail and consumption stages due to spoilage and other reasons. Food loss not only means wasted resource consumption but also exacerbates greenhouse gas emissions, pollution, and biodiversity loss. The International Atomic Energy Agency, through the Food and Agriculture Organization...

2026-04-10

FAO and IAEA: Nuclear Technologies Are Enhancing Agricultural Production and Food Security

On March 30, 2021, the Food and Agriculture Organization of the United Nations and the International Atomic Energy Agency presented multiple applications of nuclear technologies in agriculture and food security. The two organizations have collaborated for over 50 years in knowledge sharing and capacity building, further strengthening their partnership through the establishment of the Joint FAO/IAEA Centre of Nuclear Techniques in Food and Agriculture. In the field of animal health, nuclear technologies are used for the detection, control, and prevention of transboundary animal diseases and zoonoses. Belize previously had to send animal disease testing samples to overseas laboratories; with support from the Joint FAO/IAEA Centre, the Belize Agricultural Health Authority established a molecular diagnostic laboratory for animal health and adopted real-time polymerase chain reaction (PCR) testing technology. This method can detect animal diseases within 24 hours, helping frontline personnel take rapid prevention and control measures. Recently, the laboratory has also been used to assist in human COVID-19 testing, reflecting the "One Health" concept that animal, human, plant, and environmental health are interconnected.

2021-03-30

China's First Industry Standard for LOCA BEPU Analysis, Led by CGN Research Institute, Officially Released

Recently, approved by the National Energy Administration, the energy industry standard "Technical Requirements for Best Estimate Plus Uncertainty Analysis of Loss of Coolant Accident in Pressurized Water Reactor Nuclear Power Plants" (NB/T 20751-2026), led by CGN Research Institute, was officially released. The standard was developed under the leadership of the Research Institute, in collaboration with the Nuclear and Radiation Safety Center of the Ministry of Ecology and Environment, China Nuclear Power Research and Design Institute, Shanghai Nuclear Engineering Research and Design Institute, Hualong Nuclear Power Technology Co., Ltd., and China Nuclear Power Engineering Co., Ltd., among other organizations. It will come into effect on December 26, 2026. This standard is China's first BEPU analysis...

2026-08-06