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U.S. Team Proposes New In-Situ Cleaning Method for Porous Tungsten Walls in Fusion Devices

Researchers from the U.S. Department of Energy's Princeton Plasma Physics Laboratory, Princeton University, and Pennsylvania State University have proposed an in-situ cleaning method for fusion system wall materials, which uses heating combined with neon plasma to remove contaminants from the surface of porous tungsten materials after components are installed and sealed within a vacuum chamber. The research findings have been published in *Nuclear Materials and Energy*. Image credit: Kyle Palmer / PPPL Communications Department. Fusion system walls must withstand extreme temperatures. Liquid lithium is considered a promising wall protection material, which can be retained within porous tungsten wall tile structures much like water absorbed by a sponge. However, this...

2026-08-05

ASP Isotopes PET Lab Revenue Grows Over 50% in First Half of Year, Isotope Enrichment Facilities Advance Toward Commercial Production

ASP Isotopes Inc. recently released a letter to shareholders outlining operational progress across its business segments ahead of the company's second-quarter 2026 financial results announcement. The company stated that its PET lab segment achieved organic revenue growth of more than 50% in the first half of 2026 compared to the same period in 2025. Based on current expectations, the segment's full-year 2026 revenue is projected to be approximately $14 million, up from $6 million in 2025. PET-related operations are typically closely associated with radiopharmaceutical preparation, molecular imaging, and nuclear medicine diagnostic applications. On the isotope front, ASP Isotopes stated that its silicon-28 and ytterbium-176 enrichment facilities have entered the final stage before commercial production, with first deliveries expected in the second half of 2026...

2026-08-05

UK Office for Nuclear Regulation contributes to IAEA regulatory cooperation toolkit for advanced reactors

The International Atomic Energy Agency (IAEA) recently published the Nuclear Harmonization and Standardization Initiative (NHSI) Regulatory Cooperation Toolkit. The UK Office for Nuclear Regulation (ONR) played a significant role in the development of this toolkit, which is designed to support cooperation among national nuclear regulators in the review of advanced reactor technologies. The toolkit is one of the key outputs of Phase 2 of the NHSI (2025–2026), developed jointly by multiple regulators participating in the NHSI Regulatory Track and the Small Modular Reactor (SMR) Regulators' Forum. The toolkit provides practical guidance, templates, and methodologies to help regulators conduct collaborative reviews, leverage existing regulatory assessment outcomes, and address...

2026-08-05

Westinghouse and Amentum Expand Cooperation to Support Scaled Deployment of APX Technology Platform

Westinghouse Electric Company announced on August 4 that it has reached a series of agreements with Amentum to expand cooperation around Westinghouse's APX technology platform, enhance the scaled deployment capability of AP1000 reactors, and advance the development and licensing of the AP300 Small Modular Reactor (SMR). Under the agreements, the two companies will collaborate to advance AP300 SMR regulatory approval from the U.S. Nuclear Regulatory Commission (NRC). Westinghouse stated that obtaining regulatory approval is a critical step for AP300's market entry, and Amentum's engineering capabilities and nuclear project experience will support these efforts. Westinghouse Electric...

2026-08-05

Kalinin NPP Reaches 850 Billion kWh of Cumulative Power Generation

On August 4, Russia's Kalinin NPP reported that since the commissioning of its first unit, the plant has generated a cumulative total of 850 billion kWh of low-carbon electricity. This output is equivalent to approximately 3.5 years of electricity demand in Russia's Central Federal District. Kalinin NPP is part of the power division of Rosatom. Viktor Ignatov, the plant's director, stated that the cumulative generation of 850 billion kWh is the result of the long-term dedication and professional commitment of several generations of nuclear workers, built upon the expertise of the operating team, reliable unit performance, and the consistent prioritization of safety...

2026-08-05

Zaporizhzhia Nuclear Power Plant Briefly Loses External Power, Restored via 330 kV Line

The International Atomic Energy Agency (IAEA) reported on August 4 that the Zaporizhzhia Nuclear Power Plant briefly lost external power supply that day. This marked the 24th occurrence of external power interruption at the plant since the outbreak of the related conflict. According to the report, the plant lost connection with the Ferrosplavnaya-1 transmission line, currently the only one still in service, in the afternoon, and emergency diesel generators provided backup power thereafter. The IAEA stated that the cause of the incident remains unclear. The plant management said the brief external power interruption was related to a technical fault in the automatic control system, and power supply was restored in less than an hour. Currently, the plant's auxiliary power is supplied by the 330 kV Fer...

2026-08-05

South Korea to Launch Hearings on 12th Power Supply and Demand Plan, New Nuclear Projects Under Review

South Korea's Ministry of Climate, Energy and Environment stated on August 4 that the government will advance procedures for the 12th Basic Plan for Power Supply and Demand, with the issue of new nuclear power plants to be included in public discussion and subsequent review. Kim Sung-hwan, Minister of Climate, Energy and Environment of South Korea (Photo source: Yonhap) South Korea's Climate Change Minister Kim Sung-hwan stated that the format and number of sessions for the public hearings on the 12th Basic Plan for Power Supply and Demand will be finalized this week, with plans to accelerate related procedures starting next week. Under the current schedule, the government intends to form a planning proposal in September or October and submit it for review through established procedures after completing public consultation. Regarding the issue of new nuclear power plants, Kim Sung-hwan stated...

2026-08-05

Shimane Nuclear Power Plant Unit 2 Completes Fuel Replacement and Installs Containment Vessel Head

Chugoku Electric Power Co. on August 4 disclosed the installation work of the containment vessel head for Unit 2 of the Shimane Nuclear Power Plant. The unit is currently undergoing periodic inspection, with major procedures such as nuclear fuel replacement already completed. Unit 2 of the Shimane Nuclear Power Plant, located in Matsue City, Japan, was restarted two years ago. Chugoku Electric Power Co. halted the unit's operation in February this year and has been conducting periodic inspections as scheduled. To date, all 560 nuclear fuel assemblies in the unit have been removed, and safety confirmation of the reactor core has been completed. Approximately 120 of these fuel assemblies were replaced with new nuclear fuel assemblies, followed by the phase of resetting related equipment and confirming seal integrity...

2026-08-05

Finland's Olkiluoto Spent Nuclear Fuel Final Disposal Facility Passes Regulatory Safety Assessment

The Radiation and Nuclear Safety Authority of Finland (STUK) released a safety assessment report on August 4, concluding that Posiva's spent nuclear fuel encapsulation plant and final disposal facility at Olkiluoto, Finland, meets the safety requirements for an operating license. This conclusion brings the project, regarded as the world's first industrial-scale geological final disposal facility for spent nuclear fuel, one step closer to obtaining government approval for operation. The facility is located on Olkiluoto Island in the municipality of Eurajoki, southwestern Finland, and is designed to dispose of spent nuclear fuel generated by the Olkiluoto nuclear power plant units of Teollisuuden Voima Oyj (TVO) and the Loviisa nuclear power plant units of Fortum. Posiva submitted its operating license application in December 2021...

2026-08-05

Approximately 13,000 liters of water found in Unit 3 of Hamaoka Nuclear Power Plant; Chubu Electric continues investigation into data falsification

Japan's Chubu Electric Power announced on August 4 that water accumulation totaling approximately 13,000 liters was found in the turbine building and related areas of Unit 3 at the Hamaoka Nuclear Power Plant. The company stated that the accumulated water contains no radioactive substances and is currently investigating the specific cause. According to Chubu Electric Power, at around 11:00 a.m. on the 4th, a worker from a partner company discovered approximately 5 liters of water in a passageway on the northwest side of the first basement floor of the turbine building adjacent to the reactor building of Unit 3. Subsequently, company personnel continued on-site inspections and confirmed at around 3:00 p.m. the same day that approximately 13,000...

2026-08-05

South Korea Designates SMR and MMR as National Strategic Technologies; South Gyeongsang Province Says It Will Promote Transition of Nuclear Power Companies

South Gyeongsang Province said on August 4 that it welcomes the South Korean government's designation of Small Modular Reactors (SMR) and Micro Modular Reactors (MMR) as national strategic technologies in the 2026 tax reform plan. Under the relevant arrangement, the South Korean government will revise the Special Tax Treatment Control Act and its enforcement decree to include industries related to small modular reactors of 300 MW or less and micro modular reactors of 20 to 30 MW class within the scope of national strategic technologies. Going forward, companies conducting R&D on SMR and MMR technologies or investing in related facilities will be eligible for higher tax credits for R&D and facility investment. South Gyeongsang Province believes that this policy will provide an opportunity for local nuclear power companies to transition into the SMR...

2026-08-05

South Korea Accelerates Safety Reviews of Long-Term Operating Nuclear Reactors and Advances Licensing of First Spent Fuel Dry Storage Facility

The Nuclear Safety and Security Commission (NSSC) of South Korea stated at its second-half work report meeting on August 4 that it will accelerate safety reviews of long-term operating nuclear reactors while simultaneously advancing regulatory efforts such as licensing systems for spent fuel dry storage facilities and small modular reactors. Under the plan, the NSSC will conduct safety inspections on nine reactors applying for continued operation, with review standards referencing newly built nuclear power plants and confirming safety margins in consideration of the characteristics of long-term unit operation. Among these, whether Kori Nuclear Power Plant Units 3 and 4 will be approved for continued operation in the second half of this year, and whether Hanbit Nuclear Power Plant Units 1 and 2 will be approved for continued operation in the first half of next year, are the near-term review priorities...

2026-08-05

Lifting Task of Large Storage Tanks in Cryogenic System Tank Area of HL-3 Upgrade Project Successfully Completed

On August 4, the lifting task of large storage tanks in the cryogenic system tank area of the HL-3 upgrade project, undertaken by the Southwestern Institute of Physics (SWIP), was successfully completed. After two days and one night of continuous efforts, a total of 14 large storage tanks were precisely positioned, including 6 medium-pressure high-purity helium storage tanks of 100 cubic meters each, 2 cryogenic liquid nitrogen storage tanks of 100 cubic meters each, and 6 auxiliary helium storage tanks, with a total lifting tonnage exceeding 200 tons. The achievement of this key milestone marks significant phased progress in the installation of cryogenic system equipment. Once the cryogenic system is completed, it will provide stable and reliable cooling capacity for the neutral beam injection system and the toroidal cryopumps of the HL-3 device, effectively enhancing the neutral beam injection efficiency and...

2026-08-05

Balakovo NPP Conducts Special Traffic Safety Inspection Jointly with State Traffic Police

Balakovo NPP and the traffic administration recently conducted a joint preventive inspection aimed at improving road safety in the station area and preventing traffic accidents. The operation was carried out by experts from the NPP's transport workshop together with traffic police officers from the Balakovo City Police Department, as part of the annual safety inspection campaign. During the inspection, inspectors carefully checked compliance with traffic rules by vehicle drivers and pedestrians within the NPP premises. The results showed that no violations were detected, which fully reflects the high level of discipline and responsible attitude toward safety requirements demonstrated by Balakovo NPP employees and those of its contractors. The traffic police department stated that the main objective of such inspections is...

2026-08-04

Russian Nuclear-Powered Icebreaker "Yakutia" Provides First Escort for Luxury Cruise Ship to Wrangel Island Nature Reserve

This summer, the second group of tourists to Wrangel Island successfully landed on the nature reserve. 150 tourists were able to witness with their own eyes this mysterious island known as the "birthplace of polar bears." This was made possible thanks to the nuclear-powered icebreaker Yakutia providing ice escort services for the luxury cruise ship SH Minerva, ensuring navigational safety. This year, ice conditions in the Chukotka region were relatively complex, posing challenges to the cruise ship's operations. Previously, SH Minerva had failed to reach Wrangel Island due to its inability to break through sea ice, so the trip organizers took special measures this time. RussiaDiscovery and Vodokhod companies submitted a request to Rosatomflot...

2026-08-04