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China Becomes First to Achieve Operation of a Thorium-229 Nuclear Optical Clock, Bringing Quantum Precision Measurement into the Atomic Nucleus Scale

Recently, the team of Ding Shiqian, associate professor in the Department of Physics at Tsinghua University, published important results online in the international academic journal Nature, announcing the successful development of a thorium-229 nuclear optical clock and the achievement of its stable operation. This work was completed independently in the same period as that of a European team, making China the first internationally to achieve operation of a thorium-229 nuclear optical clock, marking the successful extension of the time measurement standard from electronic transitions to nuclear transitions. It is understood that a nuclear optical clock uses the internal transition of the thorium-229 atomic nucleus as a time-frequency reference. Ding Shiqian, one of the corresponding authors of the paper, introduced that the pendulum of an old-fashioned wall clock swings about once per second, whereas a nuclear optical clock uses the beat of the atomic nucleus as its "pendulum," with a beat frequency of up to about 2 quadrillion times per second. Because the size of the atomic nucleus is only a few tens of thousandths of the electron cloud outside the nucleus...

2026-10-08

Department of Nuclear Medicine at Peking University First Hospital Receives EARL Theranostics Advanced-L2 Certification, Bringing Theranostics in Line with International Standards

The Department of Nuclear Medicine at Peking University First Hospital has recently officially received the Theranostics Advanced-L2 certification issued by EARL (EANM Research Ltd.), an affiliate of the European Association of Nuclear Medicine, becoming one of the few nuclear medicine theranostics centers in China to obtain this high-level certification. The certification audit standards are rigorous, covering comprehensive dimensions including PET/CT quantitative accuracy, therapy center operations, patient safety management, and clinical competency. Passing the certification means that the department's quantitative imaging and targeted therapy data meet internationally mutually recognized standards and can achieve high-level alignment with advanced nuclear medicine centers in Europe and the United States. During the certification review, EANM President-Elect Professor Felix M. Mottaghy and Ms. Iva...

2026-10-03

Two US Companies Partner to Bring AI to Nuclear Power Plant Simulation Training

Nuclearn, a US artificial intelligence solutions company, and GSE Solutions, a supplier of high-fidelity simulation and operator training systems for nuclear power plants, announced a strategic partnership on August 20. The two companies will combine Nuclearn's AI capabilities with GSE Solutions' nuclear power plant simulator technology for applications such as plant simulation, operator training, and engineering analysis. According to information released by the two companies, the collaboration will proceed along two tracks. GSE Solutions plans to integrate Nuclearn's AI features into its simulator products, providing training instructors with tools such as natural language scenario development, automatic performance summaries after training scenarios, adaptive quiz and assessment generation, and plant-specific physics explanations during training...

2026-08-21

International Team Determines Critical Safety Parameter Ranges for Magnetic Liquid Cooling Systems

South Ural State University (SUSU) recently announced that researchers from its Polytechnic Institute, in collaboration with colleagues from Moscow and Baghdad, have determined the safe and unsafe ranges of the Hartmann number and Brinkman number in magnetic liquid cooling systems. Based on this, they developed a computer program to optimize the operation of high-power heat exchangers in devices such as supercomputers and nuclear reactors. According to the introduction, this research focuses on two key parameters in magnetohydrodynamics: the Hartmann number characterizes the resistance exerted by a magnetic field on fluid motion, while the Brinkman number reflects the internal heat generated by the fluid due to viscous effects and electrical resistance. The researchers noted that under specific conditions, a strong magnetic field does not necessarily...

2026-08-13

Siemens Healthineers Introduces Next-Generation CT Technology in Vietnam, Bringing Imaging Diagnostics Closer to the Clinical Frontline

At the 27th Annual Scientific Meeting of the Vietnam Society of Radiology and Nuclear Medicine, Siemens Healthineers showcased two new advances in CT: the second-generation photon-counting CT system NAEOTOM Alpha Class, and the SOMATOM On.site mobile CT system, making its debut in Vietnam. These two product lines target high-precision imaging diagnostics and point-of-care bedside examinations respectively, reflecting how CT technology is moving beyond the mere pursuit of image quality toward greater clinical scenario adaptability and workflow optimization. The NAEOTOM Alpha Class is the next-generation product following the global launch of NAEOTOM Alpha in 2021. Photon-counting CT provides physicians with richer diagnostic information through higher detail visualization and multi-energy data acquisition...

2026-08-11

Rosatom launches project to bring medical students to closed nuclear cities

Rosatom and the Russian Student Teams (RSO) will launch a new medical project in Russia's closed nuclear cities starting in 2027, attracting medical students to work there. Mikhail Kiselev, Chairman of the RSO Supervisory Board and State Duma deputy, announced this to reporters at an event at the Siberian Chemical Combine. Kiselev stated: Starting next year, we plan to launch a large-scale medical project in nuclear cities together with Rosatom, the Russian Student Teams, the Federal Medical-Biological Agency, the Russian Youth Affairs Agency, and the Russian Ministry of Health. This will help systematically attract medical students...

2026-08-11

Indonesia's BRIN Showcases Nuclear Technology Research Progress, Covering Radiopharmaceuticals and Food Irradiation Applications

The National Research and Innovation Agency (BRIN) of Indonesia recently showcased its nuclear technology research achievements at the Presidential Palace in Jakarta. BRIN Head Arief Satria stated that the relevant technologies fall within the scope of peaceful uses of nuclear energy, with applications extending beyond energy to also cover food and health sectors. In the health sector, BRIN is developing radiopharmaceuticals for nuclear medicine. These drugs contain radioactive substances and can be used for cancer diagnosis and treatment. Arief stated that radiopharmaceutical research and development is of great significance for cancer detection and therapy. In the food sector, BRIN applies nuclear technology to food preservation, with a focus on irradiation treatment of export fruits. Arief explained that some importing countries re...

2026-08-07

Zhang Yiming, Chairman of HTA: Tackling the "Last Mile" of Nuclear Pharmacy Network Delivery to Bring Domestic Radiopharmaceuticals to Patients in Western and County-Level Regions

On July 28, the 2026 Radiopharmaceutical Innovation and Development Conference was held in Taiyuan, Shanxi Province. Zhang Yiming, Party Committee Secretary and Chairman of HTA, told reporters that the company is restructuring its short half-life radiopharmaceutical delivery system through "regional layout + standardized logistics + grassroots empowerment," striving to ensure that cancer patients in western and county-level regions can access domestically produced radiopharmaceuticals within the drug's effective half-life window. Currently, multi-dimensional policy dividends are being continuously released, and China's radiopharmaceutical industry is entering a critical window of opportunity. Alpha nuclide drugs represent the future direction of therapeutic radiopharmaceuticals. Zhang Yiming introduced that HTA has already made early arrangements for drug research in this field, jointly conducting research on actinium-225 labeled...

2026-08-05

EDF plans to bring in investors for Nuward small modular reactor project by end of 2026

French utility EDF said on July 30 that it plans to bring in investors for its Nuward small modular reactor project by the end of 2026. The company stated that the related financing arrangements will be centered around European customers and industrial partners to support the development of a batch of initial reactors better aligned with user needs. Small modular reactors have not yet entered large-scale commercial production, but multiple companies worldwide are advancing the deployment of related technologies. Supporters believe that compared with traditional large nuclear power units, small modular reactors offer greater flexibility in deployment methods, application scenarios, and low-carbon energy supply. EDF is a state-owned French power company operating 57...

2026-07-31