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France's Golfech Nuclear Power Plant Reconnected to Grid After Shutdown Due to High Temperatures

French utility EDF (Électricité de France) announced that the Golfech nuclear power plant, located in the Tarn-et-Garonne department, has been reconnected to the grid. Unit 2 of the plant was restarted around noon on August 7, following a forced shutdown on July 29 due to high-temperature weather. At the time of the shutdown, Unit 1 was in the maintenance and refueling phase, making the interruption of Unit 2 more impactful on plant operations. The direct cause of the shutdown at Golfech was that the water temperature of the Garonne River reached regulatory limits. According to relevant regulations, when the daily average water temperature of the Garonne River exceeds 28 degrees Celsius, the plant must reduce reactor power or temporarily cease operations. Since the nuclear plant needs to draw water from the river for...

2026-08-08

South Korea Plans to Upgrade National Radiation Monitoring System to Address Impacts of Overseas Nuclear Facility Accidents

South Korea's Nuclear Safety and Security Commission is pushing to strengthen the national radiation monitoring system, bringing radioactive contamination of the domestic environment caused by potential overseas nuclear facility accidents into institutionalized regulatory scope. According to partial amendments to the Enforcement Decree and Enforcement Rules of the Atomic Energy Safety Act pre-announced on August 7, South Korea will incorporate radioactive contamination surveys into existing radiation environment surveys and environmental radioactivity monitoring and evaluation operations, entrusting the Korea Institute of Nuclear Safety with the execution of related survey work. This institutional adjustment is a supporting measure following South Korea's revision of the Atomic Energy Safety Act in February this year, with the relevant law set to take effect on February 20, 2027. The core of the amendment lies in that when overseas...

2026-08-09

Rising Seawater Temperatures Prompt New Nuclear Safety Rules: TEPCO Sets Temporary Shutdown Criteria for Kashiwazaki-Kariwa Plant

Tokyo Electric Power Company Holdings announced on August 7 that it has established a set of self-determined criteria for evaluating whether to temporarily halt nuclear reactor operations at the Kashiwazaki-Kariwa Nuclear Power Plant in Niigata Prefecture, in response to rising seawater temperatures in the surrounding area. These criteria are not mandatory requirements directly imposed by external regulatory authorities, but rather proactive measures voluntarily implemented by TEPCO based on safe operational needs. According to the conditions announced by TEPCO, the company will consider temporarily shutting down the relevant nuclear facilities when the 7-day average seawater temperature in the waters surrounding the plant exceeds 31 degrees Celsius, when water temperatures above 34 degrees Celsius are observed, or when water temperatures above 33 degrees Celsius persist for 12 hours. These numerical thresholds indicate that seawater temperature has been incorporated as a key variable in nuclear power plant operational risk management.

2026-08-08

Canadian laboratory validates molten salt separation process with real spent fuel, extracting nearly 90% of plutonium in 24 hours

A chemical experiment in Canada involving real commercial reactor spent fuel has achieved noteworthy progress. Canadian Nuclear Laboratories, in shielded hot cells at Chalk River, used irradiated spent fuel from CANDU reactors to validate the first phase of Moltex Energy's waste-to-stable-salt process. The experiment showed that within 24 hours, 89.4% of the plutonium was transferred into the molten salt; by 60 hours, this proportion rose to 94.3%. Meanwhile, the vast majority of uranium remained outside the salt phase, indicating that the process exhibits strong selectivity in separating target elements. This process, named WATSS, is not a plutonium purification route but rather a group separation technology. In addition to large quantities of uranium, spent fuel contains fission products as well as transuranic elements such as plutonium and americium, the latter being a significant source of long-term radiological risk. WATSS uses high-temperature chloride molten salt and specific reducing metals to convert transuranic oxides into salt-soluble forms, while most uranium oxides remain solid. In this experiment, researchers used niobium as the reducing metal; after 24 hours, only 0.05% of uranium entered the salt, dropping to 0.02% after 60 hours, demonstrating that it does not carry large amounts of uranium into the molten salt system.

2026-08-09

Three Los Angeles Companies Race in Portable Nuclear Power Sector

Southern California is emerging as a key testing ground for portable nuclear power technology. Three companies from the Los Angeles area—Valar Atomics in El Segundo, Antares Nuclear in Torrance, and Radiant Industries, also based in El Segundo—have joined federally backed pilot projects for portable nuclear power plants. These small-scale nuclear generating units are designed for rapid transport, deployment, and activation, with target scenarios including remote disaster zones, military bases, off-grid facilities, and even future deep-space missions. The reactors from Valar Atomics and Antares Nuclear achieved self-sustaining nuclear reactions before the July 4 government deadline, demonstrating their potential for rapid deployment...

2026-08-09

Russia's First Domestic 3D Scanner Helix Included in National Product Registry, Rosatom Completes Additive Manufacturing Technology Chain

The Russian Ministry of Industry and Trade has included the first domestically produced 3D scanner, the RangeVision Helix, in the Unified Register of Russian Electronic Products and the confirmed register of Russian-made industrial products. The registration was carried out in accordance with Russian Government Resolutions No. 878 and No. 719. Thus, the Helix has become the first and currently the only 3D scanner in Russia to be included in the aforementioned national registers. The RangeVision Helix was developed and manufactured by RangeVision, an additive manufacturing partner of Rosatom. Since 2025, the company has become the only Russian 3D scanner manufacturer included in Rosatom's additive manufacturing ecosystem...

2026-08-08

Finland's Onkalo Repository to Be Commissioned, Experts Say 100,000-Year Safety Assessment Still Faces Uncertainties

Finland's Olkiluoto is about to commission the world's first permanent deep geological repository for spent nuclear fuel — Onkalo. The facility is designed for long-term underground containment of spent fuel, with a design safety period of up to 100,000 years. There remains debate within the nuclear industry over whether such facilities can remain safe over such an immense timescale. Dmitry Pripachkin, head of the Department of Radiation Physics and Nuclear Technology Safety at the National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), stated that modern science does not yet possess tools capable of reliably predicting the state of such facilities after 100,000 years. Science can study the evolution of geological formations over long historical periods, but...

2026-08-09

U.S. NRC Proposes Radiation Protection Rule Changes, Removal of ALARA Requirements Sparks Safety Controversy

The U.S. Nuclear Regulatory Commission (NRC) plans to hold an online public meeting on August 10 to discuss its proposed rule titled "Reforming and Modernizing the NRC's Radiation Protection Framework." The proposal, published on July 15, centers on reexamining the use of the linear no-threshold model in assessing radiation health effects, as well as the as low as reasonably achievable principle—the ALARA principle—derived from that model. Under the proposal, the NRC intends to remove ALARA-related requirements from its regulations and instead adopt a graded dose management framework. This framework would be based on explicit radiation protection thresholds, dose management methods, and acceptable dose measurement approaches. The regulator stated that this move is not about changing exposure standards for workers and...

2026-08-08

Laser spectroscopy reveals for the first time the precise nuclear shape of fermium-255, offering new clues in the search for superheavy elements

An international research team has, for the first time, precisely determined the nuclear structure of the actinide fermium-255, confirming that its nucleus exhibits a pronounced prolate deformation, similar to a rugby ball. The study, published in *Physical Review Letters*, was conducted in collaboration with 18 institutions, including Johannes Gutenberg University Mainz in Germany, the Helmholtz Institute Mainz, and the University of Gothenburg in Sweden. The findings not only correct several unreasonable nuclear property values in previous standard data tables but also provide crucial experimental validation for modern nuclear theory models. Fermium is a synthetic heavy element that does not exist in nature. Fermium-255 contains 100 protons and 155 neutrons, making its experimental production extremely challenging. The research team...

2026-08-08

Eagle Nuclear Energy Advances 47-Hole Pre-Feasibility Drilling at Aurora Uranium Project

Against the backdrop of rebuilding a domestic U.S. uranium supply chain, newly listed Eagle Nuclear Energy Corp. has entered the industry spotlight with what it claims to be the largest conventional measured+indicated uranium resource in the country. Its flagship Aurora uranium project, located on the Oregon-Nevada border, contains 32.75 million pounds of indicated resources and 4.98 million pounds of inferred resources under S-K 1300 standards. The company has submitted permit applications for a pre-feasibility drilling program comprising 47 holes totaling approximately 27,000 feet, with work slated to begin upon federal and state approvals and pre-feasibility study completion targeted for the second half of 2027. On the technical front, the company recently added Yukuskokon Professional Services and expanded its collaboration with BBA USA and SLR I...

2026-08-08

Fluor's Q2 New Orders Surge to $6.1 Billion, Nuclear Fuel Enrichment Projects Boost Backlog to $26.9 Billion

U.S. engineering and construction giant Fluor demonstrated a clear acceleration in order intake in the second quarter of 2026, with new project awards reaching $6.1 billion, significantly higher than the $1.8 billion recorded in the same period last year. Among these, nuclear fuel enrichment projects emerged as a key highlight, driving the company's ending backlog to $26.9 billion. The rapid expansion in order volume indicates that customer demand for its engineering, procurement, and construction capabilities is recovering, and also reflects the tangible results of converting earlier front-end design and project development work. In terms of contract structure, 89% of Fluor's new orders this quarter were reimbursable contracts, while reimbursable contracts also accounted for 85% of total backlog, up from 80% in the same period last year....

2026-08-09

JINR delegation participates in the 51st Vietnam Conference on Theoretical Physics

From August 3 to 6, the 51st Vietnam Conference on Theoretical Physics (VCTP-51) was held in Nha Trang, Vietnam. A delegation of researchers from the Bogoliubov Laboratory of Theoretical Physics and the Laboratory of Information Technologies of the Joint Institute for Nuclear Research attended the conference, engaging in exchanges with more than 170 scholars from Vietnam, Germany, India, China, Pakistan, Russia, Taiwan, the Philippines, Japan, and other countries and regions. The conference topics covered multiple frontier directions in theoretical physics, including high-energy physics, nuclear physics, condensed matter physics, and cosmology, as well as interdisciplinary research areas such as physics beyond the Standard Model, molecular physics, quantum optics and quantum information, biomaterials, and biomolecules. The broad agenda...

2026-08-08

Thorium Atomics Initiates Pre-Application Regulatory Engagement with U.S. Regulators for Tesseract TGR Reactor

On August 7, Thorium Atomics announced that it has initiated pre-application regulatory engagement with the U.S. Nuclear Regulatory Commission (NRC) for its Tesseract TGR advanced reactor project. Prior to this, the company submitted a letter of intent to the NRC outlining the technical and licensing discussions it plans to conduct with regulators in the future. Thorium Atomics submitted the letter of intent on June 23, 2026. The NRC subsequently responded by letter on July 24, 2026, confirming the assignment of project number 99902174 for the Tesseract TGR project and designating a project manager from the Office of Advanced Reactors to coordinate pre-application activities. This number will be used for the administrative management and tracking of future correspondence, meetings, submissions...

2026-08-08

Vacuum test of the turbine condenser at Unit 1 of Akkuyu NPP successfully completed

The vacuum test of the turbine condenser at Unit 1 of Turkey's Akkuyu NPP, built by Rosatom, has been completed. The operation confirmed that the main systems of the turbine unit are ready for the next stage of commissioning. During the test, technicians established the required negative pressure in the condenser, checked the tightness of the vacuum system and the thermomechanical condition of the turbine, while monitoring parameters such as condenser vacuum, steam pressure, bearing temperatures, and thermal expansion of the casing and rotor. During the turning gear rotation of the turbine, the proper operation of the flow path (blades) was confirmed. Systems involved in the operation included: start-up boiler house boilers, vacuum system, bearing lubrication system, hydraulic jacking oil system, main turning gear, steam supply and extraction systems, as well as the equipment thermomechanical condition monitoring system.

2026-08-08

228 Research Reactors Worldwide in Operation, Supporting Medical Isotope Production and Neutron Science Innovation

According to the International Atomic Energy Agency on August 7, research reactors continue to drive innovation in science, medicine, and industry worldwide. Currently, 228 research reactors are in operation across 54 countries, with another 23 under construction or in the planning stage. Unlike nuclear reactors used for power generation, these reactors primarily produce neutrons to support medical, industrial, agricultural, geological, forensic, and nuclear science research. A research reactor pool photographed from above. (Photo: IAEA) In the medical field, research reactors are a vital source of medical radioisotopes. Among them, technetium-99m is widely used for diagnosing cancer and diseases of the heart, brain, and bones; a large number of medical diagnostic and therapeutic procedures worldwide rely on this isotope. Other radioisotopes such as iodine-131 are also used in the treatment of cancer and thyroid diseases. The IAEA states that radioisotopes produced by research reactors serve millions of patients globally and are an essential component of modern nuclear medicine systems.

2026-08-09