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U.S. nuclear energy company Holtec advances on two fronts this week: decommissioning aging nuclear plants and positioning small reactors in the southern U.S.

U.S. nuclear energy company Holtec recently announced two significant developments, reflecting the dual trend in the current nuclear power industry of retiring existing capacity while expanding new capacity. On one hand, the U.S. Nuclear Regulatory Commission approved the license termination plan for the Oyster Creek nuclear power plant, moving the decommissioning process of this veteran commercial nuclear facility in New Jersey, which began operations in 1969, past a key regulatory milestone. On the other hand, Holtec announced a partnership with Entergy and Hyundai Engineering & Construction to evaluate potential sites for deploying new reactors in the southern Gulf Coast region of the United States. The Oyster Creek plant ceased power generation in 2018 and was subsequently taken over by Holtec for decommissioning. The recently approved license termination plan...

2026-08-11

"Smashing Out" More New Particles Unknown to Humanity — Exploring the Upgraded Beijing Electron-Positron Collider After Its Second Renovation

Beside Yuquan Road in Beijing, beneath an ancient courtyard surrounded by lush greenery, lies a giant scientific facility shaped like a badminton racket — the Beijing Electron-Positron Collider. Inside this 240-meter-circumference ring-shaped device, electrons and positrons can be accelerated to near the speed of light and smashed head-on into each other. By studying the microscopic particles produced in these collisions, scientists explore the fundamental laws governing the microscopic world, verify existing physical theories, and search for unknown new particles. Recently, a reporter visited this facility to uncover the secrets of this national heavyweight that has just completed its second major upgrade. After this renovation, key indicators such as collision energy and collision luminosity have been significantly improved, achieving a historic breakthrough in core performance. Since its completion...

2026-08-11

"Triple-Arrow Assault" Confirms a Cosmic "Natural Accelerator" Ejecting Protons at Energies 100 Times That of the Large Hadron Collider

Astronomers, using three observation facilities operating in different wavelength bands, have confirmed a mysterious celestial body in the direction of the Aquila constellation in the Milky Way as a natural cosmic accelerator. This object is continuously ejecting high-speed particles with energies far exceeding any man-made accelerator on Earth, equivalent to 100 times that of the Large Hadron Collider (LHC). This discovery provides key clues for tracing the origin of the highest-energy cosmic rays in the Milky Way, and the research findings were published in the latest issue of The Astrophysical Journal. A size comparison between the gamma-ray source (large circle) and the Moon (small circle). Image credit: The Astrophysical Journal. PeV (peta-electronvolt) energy cosmic rays are high-energy diffuse gamma-ray radiation, and...

2026-08-11

Linn County, Iowa, rejects rezoning application for data center site near nuclear power plant

The Linn County Board of Supervisors in Iowa said Monday it will not proceed with amendments to the EU-2 zoning district. This decision means that large data centers will not be permitted to be built near nuclear facilities through this zoning rule for the time being. The current EU-2 zoning primarily allows for nuclear power generation facilities, nuclear waste storage facilities, and natural gas power generation facilities, and does not list large data centers as permitted uses. The zoning adjustment drew attention due to the potential restart of the Duane Arnold Energy Center near Palo. If the nuclear facility were to resume operations, it could provide a stable power source for energy-intensive data centers, prompting interest from data center companies in surrounding...

2026-08-11

Lockheed Martin Australia Authorized to Integrate Virginia-Class Nuclear Submarine Combat Systems, Marking a Key Step in AUKUS Technology Transfer

Lockheed Martin Australia has signed a multi-year A$29.3 million contract with the Australian Submarine Agency and has been officially designated as the combat systems integration partner for Australia's Virginia-class nuclear submarines. What makes this arrangement unique is that Australia will become the first national-level partner outside the United States authorized to integrate, maintain, and upgrade the classified combat systems of Virginia-class nuclear submarines. The relevant authorization covers approximately 40 classified subsystems, including critical capabilities such as sensors, target identification, weapon control, and underwater communications, marking a deepening of technology sharing under the AUKUS framework from platform procurement to the core combat systems level. The Virginia-class nucle...

2026-08-11

Russian Scientists Propose Fast Calculation Method to Simulate Plasma Ion Parameters in Seconds

Researchers from the HSE University and the Moscow Institute of Physics and Technology (MIPT) have developed an analytical method for calculating the behavior of heavy ions in helium under strong electric fields, which can accelerate the computation of ion mobility and ion–molecule reaction rates by thousands of times. The findings have been published in Physica Scripta. Plasma, composed of charged particles such as electrons, negative ions, and positive ions, is typically quasi-neutral and highly conductive. It exists not only in fluorescent lamps and welding arcs but is also used in controlled nuclear fusion devices such as tokamaks. Atmospheric plasma jets can also be applied to wound disinfection, work surface cleaning...

2026-08-11

International Team Measures Niobium-94 Neutron Reactions, Explaining Anomalous Molybdenum-94 Abundance in the Solar System

An international team of physicists has, for the first time, conducted a comprehensive study of the interactions between neutrons and the niobium-94 isotope. The findings have been published in Physical Review Letters. The study suggests that the elevated abundance of molybdenum-94 in the primordial material of the solar system can be explained by a series of neutron-involving nuclear reaction processes inside old stars, without requiring the introduction of previously unknown special formation mechanisms. The research was led by Alberto Mengoni, a researcher at the Italian National Institute for Nuclear Physics. The team conducted experiments using the n_TOF facility at CERN, focusing on tracking the interactions between neutrons and niobium-94 atoms. The n_TOF facility is used to...

2026-08-11

Russia's Atommash Commissions Ultrasonic Weld Inspection Robot to Boost NPP Equipment Testing Efficiency

Atommash, a plant under the mechanical engineering division of Russia's State Atomic Energy Corporation (Rosatom), has recently commissioned a new ultrasonic inspection robot for welded joints, used for weld quality checks on large nuclear power equipment such as nuclear reactors and steam generators. The plant is located in Rostov Oblast, Russia. The new equipment employs two scanning modes and can identify weld defect types and locate defect coordinates. Compared with traditional inspection methods involving manual probe movement, the robot can automatically perform scanning on components with complex geometries, increasing inspection speed by approximately 30% while reducing the need for manual work in hard-to-reach areas. At present, Atommash already operates...

2026-08-11

South Korea's semiconductor cluster adds about 21 GW of new power demand; government to study whether to build new nuclear units

South Korea's Minister of Climate, Energy and Environment, Kim Sung-hwan, said on the 10th that the new electricity demand from the Yongin—Hoseon semiconductor industry cluster is approximately 21 GW, equivalent to the power supply capacity of about 15 nuclear units based on an estimate of 1.4 GW per unit. The Ministry of Climate, Energy and Environment plans to seek expert and public opinions before announcing the 12th Basic Plan for Electricity Supply and Demand in October, and will decide accordingly whether to push for the construction of new nuclear units. Kim Sung-hwan stated that the electricity demand of the semiconductor industry has increased significantly compared to the past. The South Korean government has decided to raise renewable energy capacity from 78 GW to 100 GW by 2030, but whether the increase in renewable energy alone can meet the new demand still requires further assessment.

2026-08-11

Installation of STT153A Tower Crane Completed at Jiangsu Xuwei Nuclear Heating and Power Plant by CEEC

On August 6, the installation and commissioning of the first special equipment STT153A tower crane was successfully completed for Section A of the natural draft cooling tower construction and installation project for Units 1, 2, and 3 of Phase I of the Jiangsu Xuwei Nuclear Heating and Power Plant, undertaken by CEEC Mechanization Company. The tower crane installed this time was manufactured by Fushun Yongmao Construction Machinery Co., Ltd., and is positioned at the rebar processing yard of the 1PB cooling tower, with a maximum rated lifting capacity of 10t. The jib length for this installation is 65m, and the standard section height is 37.5m. Based on the on-site machinery configuration, the installation of this tower crane was completed with the coordination of one 130t mobile crane and one 25t mobile crane. The technical team of the CEEC Mechanization Xuwei Project Branch, prior to the formal commencement of the tower crane installation...

2026-08-11

Danube Water Levels Recover, Hungary Restarts Second Turbine at Paks Nuclear Power Plant

On August 10, as the Danube River's water levels recovered, Hungary began restarting a previously constrained turbine at the Paks Nuclear Power Plant. The Paks plant uses Danube water for cooling and normally supplies nearly half of Hungary's electricity. Due to heatwaves and persistent drought, the Danube's water levels fell to historic lows in recent weeks, reducing the plant's generating capacity to about 10%, with only one of its eight turbines remaining operational. According to available information, Hungarian Prime Minister Péter Magyar stated on the 10th that the Danube's water level had risen 19 centimeters from the low point recorded last week, and that restart work on the second turbine at the Paks plant had begun, with power generation expected to resume by Monday evening. He also previously mentioned...

2026-08-11

The 8th International Radiation Protection School Held in Stockholm

The Nuclear Energy Agency (NEA) of the Organisation for Economic Co-operation and Development, in collaboration with the Swedish Radiation Safety Authority (SSM) and the Centre for Radiation Protection Research (CRPR) at Stockholm University, will hold the 8th International Radiation Protection School (IRPS) in Stockholm, Sweden, from 10 to 14 August 2026. This five-day course is designed for early-career professionals in the nuclear and related fields, with a focus on helping participants systematically understand the international radiation protection system and master its practical application in emerging scenarios. The curriculum will cover the scientific foundations, historical evolution, development trajectory of the radiation protection system, and its translation into regulatory and national frameworks. According to the organisers, participants...

2026-08-11

TAF-ID database 22nd edition released, expanding advanced nuclear fuel thermodynamic evaluation data

The International Thermodynamic Database for Advanced Fuels (TAF-ID) project has been running for over a decade. The project employs the CALPHAD (Calculation of Phase Diagrams) method to develop a thermodynamic database that supports computational analysis of advanced nuclear fuel materials, enabling prediction of phase diagrams and thermodynamic properties of relevant systems. According to project documentation, Version 22 of the TAF-ID database has been released. This update adds and revises assessment data for material systems including Na-U, Na-O, Na-UO₂, U-Ru, U-Si, Al-Si-U, Fe-Pu-U, and O-N-U, and updates gas-phase data based on the latest publicly available information. The database assessment scope has been expanded to 44 elements, 272 binary systems, 151 ternary systems, and 3...

2026-08-11

First Heavy Ion Beam Obtained at DC-140 Accelerator of the Joint Institute for Nuclear Research in Dubna, Russia

The Flerov Laboratory of Nuclear Reactions at the Joint Institute for Nuclear Research (JINR) in Dubna, Russia, has completed the construction of the DC-140 accelerator complex and obtained an accelerated heavy ion beam for the first time during commissioning on August 4. This achievement marks significant progress in the JINR applied technology development program and signifies that a new ion beam platform designed to meet scientific and industrial needs for decades to come has entered its critical commissioning phase. The DC-140 project was launched in 2020 to replace the existing U-200 and IC-100 cyclotron complex. The new facility is designed to address a wide range of fundamental and applied research needs, including solid-state physics, radiation materials science, material surface modification, and track membrane production...

2026-08-11

Long-term overhaul of heating networks launched in satellite town of Smolensk NPP

A large-scale modernization of the municipal heating system has been launched in Desnogorsk, the satellite town of Russia's Smolensk Nuclear Power Plant. The project is planned to last 15 years and is expected to replace more than 30 kilometers of main heating pipelines, accounting for about one-third of the city's heating network infrastructure. The work is being carried out by AtomTeploElektroSet, a company affiliated with Rosenergoatom, which operates public utility services including heating, water supply, and drainage in cities hosting nuclear power plants. Currently, renovation work has begun in the first and third residential districts of Desnogorsk. The project's progress is linked to Desnogorsk being included in...

2026-08-11