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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

Smolensk NPP Successfully Conducts Emergency Drill Multi-Agency Coordination Tests Response Capabilities

On August 3, the Smolensk Nuclear Power Plant successfully conducted an accident response drill, with the participation of the Nuclear Power Plant Emergency Assistance Team (OPAS) of Rosenergoatom and emergency service departments. The drill brought together nuclear power plant staff, the crisis center team of Rosatom, local fire departments, medical institutions, and government representatives from the city of Smolensk and the Yelnya district. During the drill, all parties focused on practicing key tasks such as the alert and preparation of emergency response forces under non-routine conditions, organizing protective measures for personnel and local residents, and monitoring unit status and safety levels. The drill also included simulated fire...

2026-08-04

Second Ring of Steel Containment Vessel for Reactor Building of Unit 2 at Xudabao Nuclear Power Plant Successfully Hoisted into Place

At 9:57 on August 4, the second ring of the steel containment vessel (hereinafter referred to as CV Ring 2) for the reactor building of Unit 2 at Xudabao Nuclear Power Plant was successfully hoisted into place. The CV Ring 2 hoisted this time is the third ring segment of the steel containment vessel for Unit 2, with a hoisting weight of nearly 890 tons. During the assembly phase, the installation of multiple discipline items, including annular air ducts, steel structural annular corridors, and U-shaped supports for air turbulence, was completed simultaneously for this module, effectively reducing the risk of cross-operation interference in subsequent internal construction of the nuclear island. This approach fully leveraged the advantages of modular construction and effectively translated the concept of "modularize wherever applicable, prefabricate wherever installable" into tangible engineering outcomes. During the assembly and hoisting of CV Ring 2 for Unit 2, Liaoning Nuclear Power, in collaboration with...

2026-08-04

Lifting of Steel Liner Module 1 for Unit 4 of Guangdong Taipingling Nuclear Power Plant Successfully Completed

A key construction milestone was reached at the Guangdong Taipingling nuclear power construction site, where the 2,000-tonne crawler crane of CNNC Machinery Engineering precisely completed the lifting and positioning of Steel Liner Module 1 for Unit 4 of Guangdong Taipingling Nuclear Power Plant. The entire lifting operation lasted 2 hours and 12 minutes, with smooth and orderly lifting, lowering, and slewing movements, and strict control over safety and quality throughout the process, marking the official commencement of main structure construction for the nuclear island reactor building. As the core barrier of the reactor containment, the steel liner module safeguards the nuclear safety defense line, and modular lifting is also a key technical step in the batch construction of Hualong One reactors. The steel liner module lifted this time integrates the base plate in one formed piece, featuring a large diameter, thin shell wall, and relatively low stiffness...

2026-08-04

National Standard Compiled by CNNC Mining and Metallurgy Technology Successfully Released

Recently, the national standard "Methods of Analysis of Uranium Ore Concentrate - Part 1: Determination of Uranium - Ferrous Sulfate Reduction - Potassium Dichromate Titration Method" (GB/T 11848.1-2026), compiled by CNNC Mining and Metallurgy Technology Group Co., Ltd. (Beijing Research Institute of Chemical Engineering and Metallurgy, CNNC), was officially released. With this, all 15 national standard methods for "Methods of Analysis of Uranium Ore Concentrate" (GB/T 11848.2-11848.16, implemented in May 2026) led by our company have been fully released. Uranium ore concentrate is an important intermediate product in the nuclear fuel cycle, with its core value lying in the uranium it contains. The determination of uranium content is a crucial link throughout the entire industrial chain from ore to nuclear fuel. This is not merely a simple compositional analysis, but a core step in ensuring economic benefits, product compliance, process safety, and conformity with international regulations. The control of impurity elements plays an important role in the uranium purification and conversion process. The determination of impurity elements is primarily aimed at meeting product control and quality assurance requirements, ensuring downstream process safety, and supporting nuclear safeguards and forensic traceability. The new series of analytical methods is better adapted to modern production processes and detection techniques.

2026-08-03

The Institute of High Energy Physics of the Chinese Academy of Sciences Successfully Held the Fourth "1+1" Youth Forum on Nuclear and Particle Physics — Frontier Technologies Empowering Nuclear Medicine Diagnosis and Treatment

On July 25, 2026, the fourth "1+1" Youth Forum on Nuclear and Particle Physics (hereinafter referred to as the "1+1 Forum") was successfully held at the Institute of High Energy Physics of the Chinese Academy of Sciences (hereinafter referred to as IHEP). Themed "Frontier Technologies Empowering Nuclear Medicine Diagnosis and Treatment," the forum was organized by the Youth Working Committee of the Beijing Nuclear Society and the IHEP Group of the Youth Innovation Promotion Association of the Chinese Academy of Sciences, co-organized by the Institute of High Energy Physics of the Chinese Academy of Sciences and the School of Nuclear Science and Technology of the University of Chinese Academy of Sciences, and hosted by the R&D Center for Nuclear Technology (Nuclear Detection and Nuclear Imaging) of the China Atomic Energy Authority and the Beijing Engineering Research Center for Radiation Imaging Technology and Equipment. The 1+1 Forum has always adhered to the principle of organically combining demand with technology, academia with science popularization...

2026-08-03

The Nuclear and Radiation Safety Center of the Ministry of Ecology and Environment Successfully Held a Technical Seminar on Performance Testing of Iodine Adsorbers in Nuclear Facilities

Recently, the technical seminar on performance testing of iodine adsorbers in nuclear facilities, hosted by the Nuclear and Radiation Safety Center of the Ministry of Ecology and Environment (hereinafter referred to as "the Center") and organized by the Key Laboratory of Radioactive Gas Purification Technology of CNNC, was held in Taiyuan, Shanxi Province. Representatives from domestic nuclear facility operation, design, testing and inspection organizations, as well as relevant personnel from the Center's Reactor Department, Event Assessment Department, and General Operations Department attended the meeting. The seminar focused on core topics such as periodic testing methods for iodine adsorbers in ventilation systems of nuclear facilities, acceptance criteria, and test cycle requirements under long-term operation. Participants conducted in-depth exchanges on the advantages and disadvantages of radioactive versus non-radioactive test methods for iodine adsorber adsorption efficiency, 2-inch...

2026-08-01

On-site assembly of the 50MW heat exchange station for Unit 4 of Xudabao Nuclear Power Plant successfully completed

On July 30, the 50MW heat exchange station for Unit 4 of Xudabao Nuclear Power Plant completed on-site assembly, providing solid equipment support for heating in the front plant area this winter. The heat exchange station measures 16 meters in length, 9 meters in width, and 7.4 meters in height, with a total weight of 150 tons. The equipment integrates heat exchangers, circulating water pumps, water treatment devices, and electrical control instruments, forming a complete integrated heating system. The system is arranged on the zero-meter floor of the turbine hall and is responsible for heating the office areas in the front plant area. To ensure the winter heating milestone, the Equipment Procurement Division of Liaoning Nuclear Power, together with the on-site Equipment Department of the engineering company, equipment manufacturers, and installation units, established a special working group, implementing mechanisms such as weekly leadership meetings, daily morning briefings for teams, and daily progress reports, and successively coordinated and resolved issues related to equipment transportation, pipeline hoisting, scaffold erection and dismantling, power supply assurance, and cross-construction coordination, completing all assembly work of the heat exchange station as planned.

2026-07-31

Helong-2 Magnet Coil Project Kickoff Meeting Successfully Held at Lanzhou Taiji

On July 29, 2026, the Helong-2 magnet coil project kickoff meeting was successfully held at Lanzhou Taiji. This project involves core components of ENN's third-generation spherical torus hydrogen-boron fusion device, featuring extremely high technical precision, massive system integration complexity, and stringent engineering development standards. Undertaking this core development task represents ENN Group's high recognition and full trust in Lanzhou Taiji's technical capabilities, manufacturing strength, and quality control competence, laying a solid foundation for further deepening cooperation between the two parties. In the next step, Lanzhou Taiji will coordinate its premium R&D and production resources to focus on tackling core fusion technologies, implementing strict review and meticulous control throughout the entire process from structural design, multi-physics simulation, process trial production, to manufacturing...

2026-07-31

The Second Symposium on Frontier Issues of Ion-Matter Interactions Successfully Held at the School of Nuclear Science and Technology, University of South China

From July 3 to 6, the Second Symposium on Frontier Issues of Ion-Matter Interactions was held in Hengyang, Hunan Province. More than 40 experts and scholars from 15 institutions, including Beijing Normal University, Wuhan University, National University of Defense Technology, Beijing Institute of Technology, Dalian University of Technology, Lanzhou University, Xi'an Jiaotong University, North China Electric Power University, the Institute of Modern Physics of the Chinese Academy of Sciences, and the Beijing Institute of Applied Physics and Computational Mathematics, conducted in-depth exchanges and discussions on the latest experimental and theoretical research progress in the mechanisms of energetic ion beam-matter interactions. This symposium was organized by the School of Nuclear Science and Technology of the University of South China, the School of Nuclear Science and Technology of Lanzhou University, and the Key Laboratory of Beam Technology of the Ministry of Education...

2026-07-31