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2026 Systematic Training Course on Radiation Safety Management Capability for the Irradiation Industry Successfully Held in Lanzhou

To thoroughly implement the Ecological Environment Code and continuously improve the standardized radiation safety management level of the irradiation industry, the 2026 Systematic Training Course on Radiation Safety Management Capability for the Irradiation Industry, hosted by the Nuclear and Radiation Safety Center of the Ministry of Ecology and Environment (hereinafter referred to as "the Center"), was successfully held in Lanzhou, Gansu Province, from August 11 to 13. More than 80 trainees from over 60 irradiation operation, design and manufacturing, and regulatory departments across the country gathered together to study laws, regulations, and standards and share safety experience. This training closely focused on the new regulatory situation of the irradiation industry and industrial development needs, emphasizing both professionalism and practicality. The courses systematically covered the development status and trends of industrial irradiation facilities,...

2026-08-18

Module 4 of Steel Liner for Unit 3 of San'ao Nuclear Power Plant Successfully Hoisted

At 8:16 a.m. on August 15, the hoisting operation of Module 4 of the 3BRX steel liner for Unit 3 of the San'ao Nuclear Power Plant was officially launched. Under the stable operation of the 2,000-ton crawler crane of CNNC Machinery Engineering, the module successively completed a series of procedures including slewing, load-bearing travel, and alignment adjustment. After 220 minutes, the hoisting task was successfully completed. Module 4 of Unit 3 hoisted this time was integrally assembled from the fourth and fifth layers of the cylinder, with a diameter of approximately 45 meters and a height of 11.46 meters. The module features a large volume, susceptibility to deformation, and limited slewing space for the crane. The project team strictly implemented the special plan, completed site reinforcement, transport of baskets and counterweights, and crawler crane relocation in advance, organized hoisting simulation drills, and comprehensively inspected various safety hazards...

2026-08-18

Steel Containment Vessel Ring 1 of Unit 1 at Guangxi Bailong Nuclear Power Plant Successfully Hoisted into Place

At 11:38 on August 16, after 4 hours and 01 minutes of continuous and stable operation, the steel containment vessel ring 1 (CV1R) of the nuclear island of Unit 1 at Guangxi Bailong Nuclear Power Plant was successfully hoisted into place. This hoisting marks another successful installation of a key module following the CVBH and CA20 modules for Unit 1 of Bailong Nuclear Power Plant, signifying a critical breakthrough in the construction of the main structure of the nuclear island of Unit 1. The steel containment vessel consists of five major modules: the bottom head, the intermediate cylindrical shell (rings 1 to 3), and the top head, serving as the third physical safety barrier of the reactor. The CV1R hoisted this time is the core component with the largest volume and heaviest weight among the five major components of the steel containment vessel, measuring approximately 15.5 meters in height and up to 39.6 meters in maximum inner diameter, integrating equipment...

2026-08-17

Successful Hoisting of Module 3 of the Passive Containment Cooling Water Tank for Unit 4 of Zhangzhou Nuclear Power Plant

On August 15, the hoisting of Module 3 of the passive containment cooling water tank in the reactor building of the nuclear island of Unit 4 at Zhangzhou Nuclear Power Plant was successfully completed, with the entire hoisting process being safe and quality-controlled. The passive containment cooling water tank is an important component of the passive part of the containment cooling water injection system. With a total height of 22.02 meters, it features a non-uniform cross-section in an approximately fan-shaped structure and is planned as three integral modules. Module 3, hoisted this time, had a total lifting weight of approximately 132.8 tons and a height of 5.84 meters, and was positioned using a 2000-ton-class crawler crane. As the crane slowly lifted the module, through a series of precise operations including hook lifting, boom slewing, crane traveling, and luffing, Module 3 was smoothly placed onto Module 2 of the passive containment cooling water tank, with the entire process proceeding seamlessly...

2026-08-17

SPIC Haiyang Nuclear Power Unit 3 Hot Functional Test Successfully Completed

At 17:30 on August 13, the hot functional test (HFT) of Unit 3 at SPIC Shandong Nuclear Power Haiyang Nuclear Power Plant was successfully completed, laying a solid foundation for subsequent fuel loading and first grid connection of the unit. ▲Aerial view of Shandong Nuclear Power Haiyang Nuclear Power Plant. The hot functional test is the most critical non-nuclear comprehensive verification phase before nuclear fuel loading, often referred to as the "final exam" or "mock exam" before a nuclear power plant officially generates electricity. By executing a series of tests simulating actual operating conditions within the pressure and temperature ranges of normal reactor operation, it comprehensively verifies the reliability of nuclear island and conventional island systems and equipment under hot operating conditions, ensuring that relevant parameters meet design requirements. ▲On July 4, during the normal residual heat removal system (RNS) test at the heat-up platform of the hot functional test...

2026-08-15

Concrete Placement of the 16.5m Slab in the Reactor Building of Unit 4 at Zhangzhou Nuclear Power Plant Successfully Completed

At 21:58 on August 13, the concrete placement of the 16.5m slab in the internal structure of the reactor building of Unit 4 at Zhangzhou Nuclear Power Plant was successfully completed, with safety and quality under control throughout the process, laying a solid foundation for subsequent key path milestones such as crane availability and inner dome lifting. As the core load-bearing structure within the reactor building, the 16.5m slab of the internal structure serves as the critical support platform for the introduction, positioning, and installation of subsequent large-scale core equipment. The engineering structure features key challenges including large construction volume, staggered elevation differences, modular structural rebar installation, and high-precision installation of owner-supplied items, imposing extremely high requirements on overall construction organization, safety, and quality control. The total concrete volume placed this time was 2,297 cubic meters, with a continuous placement duration of 30.5 hours.

2026-08-15

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