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Heavy water leak at Wolseong Nuclear Power Plant Unit 2 in South Korea found to be far larger than initially reported

The actual scale of the heavy water leak that occurred at Wolseong Nuclear Power Plant Unit 2 in Gyeongju, North Gyeongsang Province, South Korea, in September last year, is reported to be far larger than the initially disclosed figure. The Gyeongju Environmental Movement Alliance disclosed on the 30th that a detailed internal report obtained from Korea Hydro & Nuclear Power (KHNP) shows the total amount of heavy water leaked was 1,311.15 kg, approximately five times the initially reported 256 kg, of which 5.14 kg was recorded as having leaked outdoors. After the incident, Korea Electric Power Corporation (KEPCO) had reported a heavy water leak of 256 kg and stated that no external leakage occurred. The detailed report now made public reveals...

2026-07-30

Tokamak Energy's ST40 device new gyrotron completes site acceptance test

Tokamak Energy disclosed on July 29 that the new gyrotron planned for its high-field spherical tokamak device ST40 has completed site acceptance testing. The equipment, which will serve as the core component of the radio frequency heating system, has undergone key performance verification before installation on ST40. During this test, the gyrotron achieved stable 1 MW power operation at both 104 GHz and 137 GHz frequencies, with pulse lengths up to 2 seconds. The test content included repeatability, modulation capability, power control, and mode purity, and the results demonstrated that the equipment can meet the requirements for sustained performance output in relevant fusion experiments. The gyrotron was built by Kyoto Fusioneering...

2026-07-30

TerraPower Isotopes to Donate Actinium-225 via Oncidium Foundation to Support Cancer Treatment Accessibility

TerraPower Isotopes (TPI), a subsidiary of U.S. nuclear innovation company TerraPower, announced on July 29 that it will coordinate the donation of the rare medical isotope actinium-225 (Ac-225) through the Oncidium Foundation to support economically disadvantaged cancer patients in accessing targeted radionuclide therapy. The Oncidium Foundation is a non-profit organization dedicated to promoting global access to targeted radionuclide cancer treatments. Its RLT-Connect program aims to help financially challenged patients access relevant therapies, reducing treatment disparities caused by geographic and economic conditions. This donation also marks TPI's entry into Oncidium's collaborative ecosystem of radioisotope suppliers, medical practitioners...

2026-07-30

Installation of Spacer Dampers Begins on Offshore Section of Haiyang Xin'an Nuclear Power Transmission UHV Project

On July 28, the installation of spacer dampers was fully initiated on the offshore section of the 1000 kV Haiyang Xin'an Nuclear Power Transmission UHV Project, marking the final critical phase of the world's first UHV project dedicated to nuclear power transmission. This project is China's first UHV project involving offshore construction. It starts from Xin'an Town, Haiyang City, Yantai, and ends at Tuanwang Town, Laiyang City, Yantai, with a total length of 80.36 km. It is constructed with double-circuit lines and a total of 161 towers. The project commenced in June 2025 and is scheduled for completion and commissioning in October 2026. Prior to this, the Yanwei UHV Project had successfully achieved loop closure, connecting the nation's first provincial-level UHV double-ring network in Shandong. The Haiyang Xin'an Nuclear Power Transmission Project is a key node of this double-ring network...

2026-07-30

U.S. Fusion Energy Company CFS Completes $1 Billion Equity Financing

U.S. fusion energy startup Commonwealth Fusion Systems (CFS) announced on July 30 that it has completed $1 billion in new equity financing. The company stated that this is one of the largest single-round financings globally for a fusion energy company since its $1.8 billion Series B round in 2021. To date, CFS has raised a total of $4 billion, accounting for nearly 30% of the cumulative global fusion industry financing. Headquartered in Devens, Massachusetts, CFS was founded in 2018. The company is primarily advancing the SPARC fusion demonstration device and the ARC commercial fusion power plant project. Fusion reactions release energy by combining light atoms such as hydrogen under extremely high temperatures and pressures, and are considered a potential low-carbon energy pathway. However, fusion reactors are still in the experimental and engineering validation stage, with related technologies facing challenges such as material resistance to neutron bombardment and improving reaction efficiency.

2026-07-30

Taishan Nuclear Power Launches First Batch of Independent Skill Level Certification

Recently, Taishan Nuclear Power carried out its first batch of independent vocational skill level certification, with a total of 16 individuals passing the assessment and obtaining corresponding skill level certifications. This certification marks the first batch conducted by the company after the implementation of the unified vocational skill level certification system under China General Nuclear Power Group (CGN), signifying that the company's skill talent evaluation work has officially entered a new stage of standardization and systematization. The certification covered two job categories: Vocational Trainer (Level 1) and Radiation Monitoring and Protection Worker (Levels 2 and 3). A total of 20 individuals participated, with 16 passing. The certification process strictly followed three stages: written examination, practical operation, and comprehensive review, assessing the participants' professional knowledge, operational skills, and work performance...

2026-07-30

The Institute of Plasma Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, hosted the 2026 China-Korea Bilateral Workshop on Tungsten Metal First Wall and Plasma-Wall Interactions

Recently, the 2026 China-Korea Bilateral Workshop on Tungsten Metal First Wall and Plasma-Wall Interactions (2026 CN-KO  Workshop on W-based metal Wall and  Plasma-Wall Interactions) was held. This meeting, hosted by the Institute of Plasma Physics, is a series of conferences under the framework of bilateral science and technology cooperation between the Chinese and Korean governments. More than 40 researchers from institutions including the Korea Institute of Fusion Energy, the Korea Atomic Energy Research Institute, the Korea Institute of Materials Science, Pohang University of Science and Technology, the Institute of Plasma Physics, the Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei University of Technology, and Beihang University participated...

2026-07-30

Hefei Compact Fusion Energy Experimental Device Accelerates Construction

On July 27, the Compact Fusion Energy Experimental Device (BEST), located in Sanshigang Township, Luyang District, Hefei City, Anhui Province, is accelerating its construction. From aerial footage, the construction at the project site is progressing in an orderly manner, with related work continuing to unfold. The BEST device is a follow-up project to the Experimental Advanced Superconducting Tokamak (EAST) and will conduct further experimental validation based on the first-generation EAST device. As a key experimental platform for future fusion energy applications, BEST is expected to become the world's first compact fusion energy experimental device, providing support for the transition of fusion energy from scientific experiments to engineering applications. ...

2026-07-30

North China Regional Office of Nuclear and Radiation Safety Supervision, Ministry of Ecology and Environment, Conducts On-Site Supervision of Main Pump Shaft Design and Manufacturing at Shanghai Electric KSB Nuclear Pump and Valve Co., Ltd.

To continuously enhance the localization quality of active equipment such as main pumps and the effectiveness of key technology improvements, the North China Regional Office of Nuclear and Radiation Safety Supervision (hereinafter referred to as the North China Office) of the Ministry of Ecology and Environment recently conducted on-site supervision of the wet winding main pump shaft design and manufacturing activities at Shanghai Electric KSB Nuclear Pump and Valve Co., Ltd. This supervision focused on the quality reliability of design improvement measures for main pumps, conducting detailed inspections on the standardization of design change processes, verifying key processes such as material acceptance, heat treatment, and hot sleeve assembly, with particular attention to the correlation between improvement measures and root cause analysis, the effectiveness of improved processes, and the compliance of various inspection and test results. It also required...

2026-07-30

Shidaowan Nuclear Power Company Successfully Completes Member Support Activity for Predictive Maintenance and Equipment Condition Monitoring

On July 24, Shidaowan Nuclear Power Company successfully completed the member support activity for predictive maintenance and equipment condition monitoring, laying the foundation for further optimizing the predictive maintenance and equipment condition monitoring management and technical systems of the High-Temperature Gas-Cooled Reactor (HTGR) Demonstration Project, and promoting the transformation and upgrading of the equipment management model. The member support activity, lasting five days, was organized by the Nuclear Power Branch of the China Nuclear Energy Association, aiming to leverage the expertise of industry experts to drive the transformation of the equipment management model of the HTGR Demonstration Project from breakdown maintenance and periodic maintenance to data-driven predictive management, thereby strengthening the foundation of nuclear safety and operational economy. The expert team for this activity was led by Chen Lunshou, former Deputy Chief Engineer of Sanmen Nuclear Power Co., Ltd...

2026-07-30

Pre-registration Study Launch Meeting for Light Ion Therapy System Held in Hangzhou

On July 26, the pre-registration study launch meeting for the light ion therapy system was held at CAS Ion (Hangzhou) Medical Technology Co., Ltd. The meeting, themed "Focusing on Multi-ion Clinical Research, Empowering Precision Radiotherapy Innovation," discussed the frontier directions of multi-ion therapy, pre-registration study protocols for the therapy system, and related quality control work. The meeting was hosted by the Zhejiang Provincial Key Laboratory of Tumor Particle Radiotherapy Equipment and CAS Ion Hangzhou Company, and co-organized by the Sun Yat-sen University–CAS Ion (Lanzhou Taiji) Joint Laboratory of Advanced Radiotherapy Technology and the China-Japan-Korea Tumor Prevention and Control Research Institute. Experts and scholars from fields including clinical radiotherapy, medical physics, equipment R&D, and testing and evaluation...

2026-07-30

Princeton University and PPPL Launch Collaborative Graduate Program in Plasma Science and Technology

The Princeton Plasma Physics Laboratory (PPPL), a U.S. Department of Energy (DOE) facility, and Princeton University recently launched the Collaborative Research Program in Plasma Science and Technology (CRPST). This two-year program, which began on July 1, 2026, aims to establish a more formal joint mentorship mechanism and expand opportunities for Princeton University graduate students in engineering, physics, and related disciplines to participate in research at PPPL. Under the program, selected students will be jointly mentored by a PPPL scientist and a Princeton University faculty member. Students will work at PPPL at least one day per week, participate in relevant research groups, and use laboratory facilities to advance their projects...

2026-07-30

SuperCritical Obtains Exclusive License for Uranium Extraction from Seawater Technology, Plans Industrial Deployment in the United States

SuperCritical Materials Corp., a U.S. developer of nuclear fuel and critical materials infrastructure, announced on July 24 that it has obtained an exclusive license from Battelle Memorial Institute for a patented uranium adsorbent technology used to extract uranium from seawater. The technology was originally developed by Pacific Northwest National Laboratory (PNNL) and its research partners. Battelle Memorial Institute currently manages eight national laboratories for the U.S. federal government. SuperCritical stated that the technology has been verified to extract uranium from seawater...

2026-07-30

Superyacht Industry Explores Nuclear Power Transition, Calls for Early Safety and Regulatory Preparation

During the 2026 Monaco Energy Boat Challenge, the application prospects of nuclear propulsion technology in the superyacht sector became a focal point of industry discussion. Experts attending the event believe that although nuclear-powered superyachts still have a long way to go before commercial application, the relevant discussions are no longer confined to the conceptual stage. The industry needs to start preparing early on issues such as design, safety, operation, and regulation. Engel-Jan de Boer, Global Yacht Business Manager at the UK-based maritime professional services organization Lloyd's Register, stated during the conference that with the rapid development of maritime nuclear technology...

2026-07-30

U.S. Department of Energy Selects Five States to Explore Building Nuclear Lifecycle Innovation Hubs

The U.S. Department of Energy (DOE) announced on July 28 that it has selected Utah, Tennessee, Oklahoma, Louisiana, and Idaho as potential host states for Nuclear Lifecycle Innovation Hubs. The DOE has signed memorandums of understanding with these five states and will continue to evaluate the conditions and plans for hosting the hubs in each state. On January 28 of this year, the DOE issued a Request for Information, inviting states to express interest in building Nuclear Lifecycle Innovation Hubs. The proposed hubs are intended to support full lifecycle activities for nuclear fuel, including fuel fabrication, uranium enrichment, spent nuclear fuel reprocessing, and waste disposal. Depending on state priorities and regional capabilities, the hubs may also accommodate...

2026-07-30