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Module 5 of Containment Steel Liner Successfully Lifted at Unit 3 of Guangdong Taipingling Nuclear Power Plant

On August 10, the construction of Unit 3 at CGN's Guangdong Taipingling Nuclear Power Plant reached a critical milestone. A Zoomlion 2,000-tonne crawler crane, serving as the core lifting main force, successfully completed the precise positioning of Module 5 of the containment steel liner. This lifting operation involved significant technical challenges and demanding working conditions. The steel liner Module 5 weighed nearly 280 tonnes, with a component diameter of 45 meters, a height of nearly 6 meters, and a wall thickness of only 6 millimeters, making it a typical ultra-large thin-walled flexible component. The module's lateral windward area exceeded 300 square meters, making it susceptible to wind-induced sway during lifting, which imposed extremely high requirements on the crane's operational stability, control precision, and heavy-load adaptability. The Zo...

2026-08-14

"Frontier Workshop on Nuclear Structure and Reactions" Successfully Held at the Institute of Modern Physics, Chinese Academy of Sciences

From July 18 to August 1, the Institute of Modern Physics of the Chinese Academy of Sciences hosted the Frontier Workshop on Nuclear Structure and Reactions. Funded by the Special Fund for Theoretical Physics of the National Natural Science Foundation of China, the workshop attracted 89 young faculty members, postdoctoral researchers, and graduate students from over 30 universities and research institutions nationwide. Twenty-one experts in nuclear physics were invited to give lectures, totaling nearly 80 class hours. Academician of the Chinese Academy of Sciences and President of East China Normal University, Professor Ma Yugang; Academician of the Chinese Academy of Sciences and Professor at Tsinghua University, Zou Bingsong; Director of the Institute of Modern Physics, Professor Sun Zhiyu; as well as representative lecturers Professor Ye Yanlin and Professor Yang Xiaofei from Peking University...

2026-08-13

CGN Hezhi® Proton Therapy System Clinical Performance Successfully Passes Expert Review

On July 31, the expert review meeting for the clinical performance evaluation of the CGN Hezhi® Proton Therapy System was held at the CGN Proton Therapy Equipment Manufacturing Base. Clinical experts from Sun Yat-sen University Cancer Center, National Cancer Center/Cancer Hospital of Chinese Academy of Medical Sciences, Sichuan Cancer Hospital, National Cancer Center/Cancer Hospital of Chinese Academy of Medical Sciences Shenzhen Hospital, and Shandong First Medical University Affiliated Cancer Hospital attended the review meeting.▲Expert review of CGN Hezhi® Proton Therapy System clinical performanceAt the review meeting, the relevant person in charge of CGN Medical Technology Co., Ltd. (hereinafter referred to as the "Company") introduced that the comprehensive verification platform for the proton therapy system has achieved full-process independent controllability from design, procurement, production,...

2026-08-12

University of Tokyo and University of York Successfully Validate Positronium Ratio Imaging Principle for the First Time

A research team from the Graduate School of Engineering at the University of Tokyo and the University of York in the UK established a novel geometric imaging principle utilizing positron three-photon decay. Using a gamma-ray measurement system comprising scintillators and silicon photomultipliers (SiPMs), along with the existing PET radiopharmaceutical ^18F-FDG, they successfully visualized the positronium three-photon decay ratio for the first time, completing the proof-of-principle for Positronium Ratio Imaging (PRI). The findings were published in *Communications Physics*. Current clinical nuclear medicine PET examinations primarily utilize gamma rays generated from two-photon annihilation between positrons and electrons to visualize drug accumulation in the body. While this method provides quantitative information on metabolism or drug uptake, it offers limited insight into microenvironmental features such as tissue hypoxia, which are closely related to disease malignancy. In recent years, researchers have attempted to obtain additional tissue information through the average lifetime of positronium formed during positron annihilation, but this approach typically requires the introduction of special nuclides or agents, limiting its practical application.

2026-08-12

CGN Lufeng Nuclear Power Unit 1 Conventional Island Main Crane Hoisting Successfully Completed

At 21:00 on August 10, 2026, the auxiliary trolley of Crane A for the conventional island of CGN Lufeng Nuclear Power Unit 1 was successfully positioned, marking the successful completion of the hoisting work for Main Cranes A/B of the conventional island of Unit 1. The entire hoisting process lasted 4 days and was completed in 8 lifts in an orderly sequence. The successful hoisting and positioning of the main cranes for the conventional island of Unit 1 is not only a key milestone in the conventional island installation works, but also lays a solid foundation for the introduction of the steam turbine generator and its auxiliary equipment. Lufeng Nuclear Power will continue to collaborate with all participating construction units, adhere to the value orientation of "Three Focuses," deeply practice the work style of "Meticulous, Prudent, Detailed, and Pragmatic," and support the high-quality construction of Unit 1 with practical efforts, injecting strong momentum into building the Lufeng Nuclear Power Project into a benchmark project that is safe, high-quality, and efficient...

2026-08-12

2026 Technical Exchange Conference on Key Issues in Nuclear Accident Safety Analysis Successfully Held in Shenzhen

To further enhance the level of emergency technical support for nuclear power plants, consolidate nuclear safety barriers, and promote the development of industry technical standards, the 2026 Technical Exchange Conference on Key Issues in Nuclear Accident Safety Analysis was recently held in Shenzhen. The conference was hosted by the Nuclear Safety Branch of the Chinese Nuclear Society and co-organized by the Nuclear and Radiation Safety Center of the Ministry of Ecology and Environment, the Nuclear Emergency and Rescue Center of China General Nuclear Power Group, and the China Nuclear Power Research Institute Co., Ltd. Participants included experts and young researchers from China Nuclear Power Engineering Co., Ltd., China Nuclear Power Engineering Co., Ltd. (CNPE), Nuclear Power Institute of China, Nuclear Power Operation Research Institute, CNNC Nuclear Operation & Maintenance Technology Co., Ltd., Shanghai Nuclear Engineering Research and Design Institute Co., Ltd., Tsinghua University,...

2026-08-11

Cathode High-Voltage Power Supply for CFQS Device ECRH System Manufactured by CNNC Tongchuang Successfully Shipped

On August 3, the cathode high-voltage power supply for the Electron Cyclotron Resonance Heating (ECRH) system of China's first Quasi-Axisymmetric Stellarator (CFQS) device, manufactured by CNNC Tongchuang (Chengdu) Technology Co., Ltd., successfully passed factory acceptance and was officially shipped. The CFQS device is a major scientific and technological infrastructure project of Sichuan Province. The device adopts an advanced quasi-axisymmetric magnetic field configuration, combining the advantages of high confinement performance and steady-state operation. Under low-parameter operating conditions, the CFQS test platform confirmed that the quasi-axisymmetric magnetic field configuration can effectively reduce neoclassical transport losses in plasma and improve plasma confinement, marking the first international experimental verification of the superiority of the quasi-axisymmetric magnetic field configuration. Next, the CFQS stellarator...

2026-08-10

First Concrete Pour (FCD) Successfully Completed for the Conventional Island of Unit 2 at Guangxi Bailong Nuclear Power Plant

At 10:06 on August 9, after 38 hours and 46 minutes of continuous effort, the First Concrete Pour (FCD) for the conventional island of Unit 2 at the SPIC Guangxi Bailong Nuclear Power Plant was successfully completed, marking the full commencement of the main construction phase for the conventional island. The basement floor slab of the conventional island of Unit 2 adopts an integral raft foundation, divided into 9 construction zones using the sequence method. This concrete pour covered Zone 1, starting at 19:20 on August 7, with a cumulative pour of 1,732 cubic meters of concrete, conducted safely and orderly throughout the process. Since July, Typhoon Maysak directly struck Fangchenggang, bringing successive storms, followed by days of high temperatures at the Bailong nuclear site, posing significant challenges to on-site construction. In response...

2026-08-10

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

First Batch of Non-Safety-Class Main Instrumentation and Control Cabinets for Unit 1 of Xudabao Nuclear Power Plant Successfully Arrived

Recently, the non-safety-class main instrumentation and control (I&C) cabinets for Unit 1 of Xudabao Nuclear Power Plant arrived smoothly and were delivered to the plant site. The main I&C cabinets are core critical equipment for unit control and operation management at nuclear power plants, undertaking full-process functions such as data acquisition, logic calculation, process control, interlock protection, and operation monitoring. They can be regarded as the "central brain" ensuring the safe, controllable, and stable operation of nuclear power units. This equipment features high technical precision, strong integration, and stringent safety classification requirements, offering advantages such as high control accuracy, fast response speed, strong operational stability, and excellent fault tolerance, thereby ensuring safe, stable, and efficient unit operation. To ensure the equipment arrived on schedule, Liaoning Nuclear Power proactively took the lead, coordinated precisely, and efficiently linked the efforts of the general contractor, equipment manufacturer, and design institute, breaking through the collaborative chain across solution optimization, manufacturing, and factory acceptance testing, overcoming difficulties and advancing efficiently. By the end of July, all preparatory work was completed ahead of schedule, and the equipment arrived on time, laying a solid foundation for subsequent project milestones.

2026-08-08

First Clinical Treatment Successfully Completed with China's Domestic Superconducting Cyclotron Proton Therapy System by CYC-Ion

On the morning of August 7, the domestically developed superconducting cyclotron proton therapy system, independently developed by Hefei CYC-Ion Medical Technology Equipment Co., Ltd., completed the first clinical trial treatment of a subject at Hefei Ion Medical Center. This marks a significant breakthrough as the first domestically produced superconducting cyclotron proton radiation therapy system in China. The subject in this case was a lung cancer patient. The superconducting proton therapy system used in the trial is equipped with the SC240 superconducting cyclotron independently developed by CYC-Ion, featuring an ultra-large irradiation field and 360° full-angle beam delivery capability. The entire treatment process relied on multi-modal fusion 4D image-guided precise positioning, enabling dynamic adaptation and precise treatment. The equipment operated smoothly with low noise, and the treatment control software ran...

2026-08-07

Huaneng Hainan Changjiang Nuclear Power Plant Unit 4 Secondary Loop Combined Hydrostatic Test Successfully Completed

At 04:29 on August 6, 2026, witnessed jointly by Huaneng Changjiang Nuclear Power Company and all participating construction units, the secondary loop combined hydrostatic test of Unit 4 was completed, laying a solid critical prerequisite foundation for the comprehensive implementation of subsequent cold functional tests of the unit. Hydrostatic test curve diagram The secondary loop hydrostatic test is the core critical test following the blasting purging process in the unit's secondary loop system, and constitutes a mandatory acceptance procedure during the construction and installation phase of the Hualong One nuclear power unit. The test primarily targets the steam generator secondary side system, main steam pipelines, feedwater system, auxiliary valves, supports and hangers, and all associated piping, comprehensively verifying the overall structural pressure resistance, weld and flange sealing performance, and...

2026-08-07

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

WANO Peer Review Successfully Conducted for Hainan Nuclear Power Units 1 and 2

From July 13 to 31, the World Association of Nuclear Operators (WANO) conducted a three-week operational peer review of Hainan Nuclear Power Units 1 and 2. The review involved 22 industry experts from 5 countries and regions, who carried out a comprehensive and systematic assessment of Hainan Nuclear Power across ten core areas including organizational management, operations, maintenance, and technology, through various methods such as on-site observations, personnel interviews, and document reviews. In addition, the expert team conducted a special evaluation of the plant's nuclear safety culture status and the implementation of Significant Operating Experience Reports (SOER). At the review summary meeting, the review team announced the assessment results and provided professional recommendations for the plant's continuous improvement. ...

2026-08-05

Cold Functional Test of Tianwan Nuclear Power Plant Unit 8 Successfully Completed

On August 3, the cold functional test (hereinafter referred to as the "cold test") of Tianwan Nuclear Power Plant Unit 8, constructed by China Nuclear Industry 23 Construction Co., Ltd. (CNI23), was successfully completed, marking the official transition of the unit from the engineering installation phase to the system commissioning and testing phase, laying a solid foundation for subsequent hot functional test, reactor fuel loading, and grid connection. The cold test is the first comprehensive commissioning test after a nuclear power unit enters the system commissioning phase and is one of the important milestone nodes in nuclear power plant engineering construction. Its main purpose is to verify the integrity and leak-tightness of the pressure boundary, including primary loop pipeline welds, equipment, and high-pressure sections of connected systems, comprehensively inspect on-site installation quality, and precisely identify potential hazards. It serves as the first comprehensive and systematic "physical examination" of the reactor before its operation.

2026-08-05