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Commissioning of the CRAFT Cryogenic System 6 kW@4.5 K Helium Refrigerator Successfully Completed

Recently, significant progress has been made in the construction of the helium refrigeration system on the CRAFT magnet platform. The on-site commissioning and performance testing of the main body of the CRAFT cryogenic system 6 kW@4.5 K helium refrigerator have been successfully completed, with all indicators meeting the design acceptance requirements. The commissioning work focused on systematic verification of the cold box refrigeration performance, liquefaction capacity, control system, safety interlocks, and the operating status of key cryogenic equipment. During the acceptance tests, the helium refrigerator completed 12 hours of continuous stable operation under design conditions, achieving a refrigeration capacity of 6 kW@4.5 K + 50 K@GHe. In addition to design conditions, the project team also conducted performance tests under helium liquefaction conditions, with relevant temperature, pressure,...

2026-09-03

U.S. Think Tank Recommends European Nuclear Power Adjust Cooling Configurations to Address High Temperatures and Drought

The U.S. Boston-based think tank Clean Air Task Force (CATF) recently stated that extreme heat and drought are placing new pressure on Europe's energy infrastructure, with nuclear power plant operations also affected. The organization believes the nuclear industry needs to place greater emphasis on climate resilience in energy planning and assess the impact of different cooling configurations on long-term plant operations. CATF noted that for nuclear power plants, temperature changes, water resource availability, environmental conditions, and related regulatory requirements over the coming decades could all affect unit operations. The selection of cooling schemes for nuclear power plants should be determined based on site-specific conditions, including local water resource availability, environmental regulations, geographical conditions...

2026-09-03

SNPAS Successfully Completes Batch Shipment of 45 Nuclear-Grade Paperless Recorders

On August 27, SNPAS successfully completed factory acceptance and shipment of 45 nuclear-grade paperless recorders. This batch delivery marks that the product has completed full-process technical iteration, with all production links across the entire chain moving toward standardization. Domestic nuclear-grade display and control equipment now possesses sustained and stable batch supply capability, with continuously growing market recognition. The nuclear-grade paperless recorder is a core product of the high-reliability display and control platform based on FPGA (Field Programmable Gate Array) architecture. The entire product operation process involves no CPU or operating system, fundamentally resolving the industry pain points of traditional display and control equipment, namely difficult operating system verification and vulnerability to virus attacks. It inherently features virus resistance, no system freezes, instant startup, and fast response...

2026-09-03

Japan Approves Adjusted Tsunami Height Assessment for Genkai Nuclear Power Plant

At its regular meeting held on September 2, Japan's Nuclear Regulation Authority (NRA) formally approved Kyushu Electric Power Co.'s assessment of the maximum potential tsunami height at the Genkai Nuclear Power Plant site in Saga Prefecture. Under this adjustment, the maximum tsunami height on the northwest side of the Genkai plant site has been raised to 14 meters; previously, the maximum tsunami height on the north side of the site was 6 meters. The NRA determined that the ground surface on the northwest side of the Genkai plant site is covered by bedrock with an elevation of 16 meters, and therefore no additional disaster prevention measures are required even under the new tsunami height assessment. In July, the NRA had already approved the review report draft submitted by Kyushu Electric Power...

2026-09-02

Carbon Nanotubes Can "Remember" Their Initial Structure, Isotope Labeling Reveals Dynamic Growth Process

A study released on September 1 shows that carbon nanotubes can maintain their initial atomic structure in dynamically changing growth environments. The research team used digital isotope labeling technology to encode the elongation process of individual carbon nanotubes as sequences of different carbon isotope compositions, and read their growth history through Raman spectroscopy, thereby tracking the structural stability of nanotubes under conditions of temperature variation and catalyst evolution. The properties of carbon nanotubes are highly dependent on their atomic arrangement. The same material may exhibit metallic or semiconducting characteristics due to structural differences, so structural uniformity has always been a key issue for the large-scale application of carbon nanotubes. In floating catalyst chemical vapor deposition and other industrial production routes, catalyst particles experience constantly changing temperatures and gas compositions within the reactor and may undergo irreversible enlargement. Previously, direct evidence was lacking on whether individual carbon nanotubes could maintain their initial structure under such complex conditions.

2026-09-02

Japanese Team Develops High-Temperature, High-Pressure Isotope Ratio Analysis Method for Tracing Halogenated Pollutants

Researchers from Shibaura Institute of Technology (SIT) and the National Institute of Advanced Industrial Science and Technology (AIST) in Japan have collaboratively developed a customized high-temperature, high-pressure combustion interface for liquid chromatography-isotope ratio mass spectrometry (LC-IRMS), enabling carbon stable isotope ratio (δ¹³C) analysis of various halogenated organic compounds. The research findings were published online on August 2, 2026, and will appear in Volume 1421 of Analytica Chimica Acta, scheduled for release on November 1, 2026. Source of the new high-temperature, high-pressure LC-IRMS system: Professor Hiroto Kawashima, SIT, Japan. Halogenated organic compounds are widely present in disinfection byproducts, pesticides, refrigerants, and industrial chemicals, some of which exhibit persistence, bioaccumulation, and toxicity. Traditional environmental monitoring primarily relies on concentration measurements, which makes it difficult to directly provide information on pollutant sources and environmental transformation processes. δ¹³C analysis can offer clues for studying chemical sources, production processes, and environmental fate, but organic pollutants containing strong carbon—chlorine or carbon—fluorine bonds are difficult to fully oxidize under conventional LC-IRMS combustion conditions, limiting the application of this technique.

2026-09-02

Iran Still Denies IAEA Inspectors Access to Some Nuclear Facilities

A recent report shows that Iran has still not allowed International Atomic Energy Agency (IAEA) inspectors to access some of its nuclear facilities, including sites in Isfahan, Natanz, and Fordow that were previously damaged in airstrikes. The report states that the IAEA had previously detected over 440 kilograms of highly enriched uranium and nearly 8,600 kilograms of low-enriched uranium at these locations. Due to the current lack of sufficient information on the status and whereabouts of the relevant nuclear materials, IAEA Director General Rafael Grossi has expressed concerns over nuclear non-proliferation risks and called on Tehran to allow inspectors to access the facilities for verification as soon as possible. The report also mentions that inspectors...

2026-09-02

Japan's Tomari Nuclear Power Plant Plans New Low-Level Radioactive Waste Processing Facility

Hokkaido Electric Power Company (HEPCO) recently announced plans to construct a new low-level radioactive waste processing facility within the premises of the Tomari Nuclear Power Plant in Hokkaido, Japan, to handle approximately 12,000 drums of low-level radioactive waste currently stored on site. According to HEPCO, the new facility will sort waste such as paper and metal, reduce its volume through fine shredding or compression, and then solidify it by pouring mortar into the waste drums. After processing, the waste will undergo radioactivity level testing before being transported to the disposal center in Rokkasho Village, Aomori Prefecture. Previously, the Tomari plant had stored this type of waste in 200-liter drums without further processing. The proposed facility will have an annual processing capacity of over 1,000 drums, feature a three-story structure, and cover a total floor area of approximately 4,600 square meters.

2026-09-02

Major Breakthrough in Residual Stress Research on Key Aviation Materials in China

Nickel-based single-crystal superalloys are key materials for manufacturing turbine blades in aviation engines. Recently, the neutron scattering team from the Department of Nuclear Physics at the China Institute of Atomic Energy (CIAE) under CNNC, leveraging the Engineering Science Stress Spectrometer at the China Advanced Research Reactor (CARR), overcame technical challenges in residual stress measurement of single-crystal superalloys and established a precise three-dimensional residual stress testing method based on neutron diffraction. This provides an effective solution for residual stress assessment of critical aviation materials and lays a solid methodological foundation for the in-depth application of the CARR Engineering Science Stress Spectrometer in high-end manufacturing. During high-temperature heat treatment or service of nickel-based single-crystal superalloys...

2026-09-02

Zhejiang Jinqimen Nuclear Power Unit 1 Pressurizer Relief Tank Successfully Hoisted into Place

On August 30, the pressurizer relief tank, a major nuclear island equipment item of Unit 1 at Zhejiang Jinqimen Nuclear Power Plant, contracted by China Nuclear Industry Fifth Construction Co., Ltd. (CNF), was successfully hoisted into place. The entire hoisting process was smooth and orderly, with overall safety and quality under control. This hoisting has laid a solid foundation for the subsequent installation of main nuclear island equipment and the construction of the primary loop system. The pressurizer relief tank is an important auxiliary equipment of the reactor coolant system in a nuclear power plant. Its main function is to collect and condense the high-temperature and high-pressure steam discharged from the pressurizer safety valves, ensuring the safe and stable operation of the reactor system. The relief tank hoisted this time is pre-installed equipment in the nuclear island. The main body of the equipment is heavy in weight and large in size, with limited hoisting workspace. After being hoisted into place, it needs to be placed in the nuclear island building for a long period, and subsequent construction will be constrained by space, making it necessary to introduce the equipment precisely within the civil construction window period.

2026-09-02

Hokuriku Electric Power Submits Revised Nuclear Disaster Prevention Business Plan for Shika Nuclear Power Station

Hokuriku Electric Power Company announced on August 31 that it has submitted revisions to the "Nuclear Operator Disaster Prevention Business Plan" for the Shika Nuclear Power Station to the Prime Minister of Japan and the Nuclear Regulation Authority for filing. The plan is formulated under Japan's Act on Special Measures Concerning Nuclear Emergency Preparedness, and primarily stipulates the operations required of nuclear power stations in nuclear disaster prevention, emergency response, post-nuclear-disaster response, as well as preventing the occurrence and escalation of nuclear disasters and promoting recovery efforts. Hokuriku Electric Power stated that consultations with Ishikawa Prefecture, Shika Town, and Toyama Prefecture have been completed for this revision. Under relevant Japanese laws and regulations, nuclear power...

2026-09-01

Japan's Mihama Nuclear Power Station Unit 3 Plans Grid Connection on September 15

Kansai Electric Power announced on September 1, 2026, that work related to the periodic inspection of Unit 3 at Japan's Mihama Nuclear Power Station is progressing as planned. Based on the progress of the inspection and the status of corrective measures for the steam leakage issue in the high-pressure turbine, the unit is scheduled to be connected to the grid on September 15. Unit 3 of Mihama Nuclear Power Station is a pressurized water reactor unit with a rated electrical output of 826 MW and a rated thermal output of 2,440 MW. On May 8 this year, the unit underwent a manual reactor shutdown after steam leakage was confirmed in the high-pressure turbine. From June 16, the unit entered its 29th periodic inspection. Kansai Electric Power stated that, in response to the steam leakage in the high-pressure turbine, the upper cylinder sealing cover has been replaced based on the results of the cause investigation, and multiple measures such as the development of relevant guidelines are being advanced.

2026-09-01

Tennessee Issues First-Ever Commercial Fusion-Specific Permit in the U.S. to Type One Energy

The Tennessee Department of Environment and Conservation (TDEC) has issued Type One Energy the state's first permit specifically for a fusion energy facility, allowing the company to advance fusion-related projects at the Tennessee Valley Authority's (TVA) Bull Run Energy Complex in Clinton. Tennessee officials stated this is the first permit of its kind in the United States issued under a new state-level fusion regulatory framework. Tennessee Governor Bill Lee, alongside fusion energy partners, presented the first U.S. permit specifically for a commercial fusion facility on Monday at the Organization of American States (OAS) annual meeting in Nashville. (LR) TVA Interim...

2026-09-01

Harbin Engineering University Establishes Research Institute for Spent Fuel Reprocessing and Advanced Materials

On August 31, the inauguration ceremony of the Research Institute for Spent Fuel Reprocessing and Advanced Materials at Harbin Engineering University was held at the university's Qihang Activity Center. More than 150 participants attended the meeting, including academicians and experts in the field of nuclear science and technology, representatives from industry and enterprises, peer institutions, and alumni. The newly established institute will address the needs of nuclear energy safety assurance and sustainable development by integrating the university's advantageous disciplinary resources in nuclear science, materials, and chemical engineering, focusing on breakthroughs in spent fuel reprocessing processes, advanced materials development, and related key core technologies, while promoting the coordinated development of basic research, technological breakthroughs, and commercialization of research outcomes. At the meeting, several attending experts noted that spent fuel reprocessing is a critical part of the nuclear f...

2026-09-01

Portable X-ray Equipment in the U.S. Used for On-Site Assessment of American Football Injuries

As the 2026–2027 American football season approaches, team training camps, player evaluations, and medical support preparations are getting underway. Given the risk of acute sports injuries from the high-intensity physical contact in American football, portable X-ray equipment is being used to improve the efficiency of injury assessment on the sidelines and at training facilities. According to reports, American football players are prone to fractures, sprains, joint dislocations, and contusions. Relevant data indicates that the incidence of severe injuries such as fractures, dislocations, and contusions in this sport is higher than in other sports, with fractures accounting for approximately 10% of all football injuries. Such injuries typically require X-ray radiography to aid diagnosis, but traditional X-ray machines are bulky and fixed in place, usually requiring use in facilities with appropriate shielding. Injured players often need to be transported to the radiology department for examinations, which may delay diagnosis and treatment decisions.

2026-08-31