Research & Applications

The Advanced Test Reactor (ATR) at Idaho National Laboratory will soon be irradiating fuel pellets containing thorium and high-assay low-enriched uranium (HALEU) developed by Clean Core Thorium Energy for use in pressurized heavy water reactors (PHWRs). Clean Core announced on June 14 that it will proceed with irradiation testing and qualification under an agreement with the Department of Energy; the plans have been in the works since at least 2020, when the DOE filed a National Environmental Policy Act (NEPA) disclosure for the work.

Researchers at the Chinese Academy of Sciences’ Institute of Modern Physics are making strides with their China Initiative Accelerator-Driven System (CiADS) technology, which is being developed to get more life out of used nuclear fuel. Defense One, an online news source that focuses on “the future of U.S. defense and national security,” describes the prototype system as a step in moving China toward energy independence and advancing that nation’s “global leadership in climate-friendly technology.”

General Atomics’ Magnet Technologies Center in Poway, Calif., played host last week to French ambassador Philippe Étienne, the company announced June 16. During the visit, which was hosted by Vivek Lall, chief executive of the General Atomics Global Corporation, Étienne viewed ITER central solenoid modules—all destined for shipment to France—in several stages of the fabrication process.

“General Atomics and French organizations have a strong relationship in both the defense and energy sectors, as well as in the unmanned field, that meet both France’s and the United States’ important interests,” Étienne remarked during his visit.

Ammonia is a carbon-free energy carrier that could be produced using thermal energy from nuclear power plants. Terrestrial Energy announced June 9 that it has signed an agreement with engineering firm KBR to explore the use of its Integral Molten Salt Reactor (IMSR) for both hydrogen and ammonia production.

The International Atomic Energy Agency convened a workshop last week to explore how nuclear techniques backed by the IAEA’s Zoonotic Disease Integrated Action (ZODIAC) initiative could be used to avoid outbreaks of monkeypox and Lassa fever. The meeting, held in Vienna, Austria, on the sidelines of the IAEA Board of Governors meeting, was organized to assist countries in using nuclear and related techniques to detect, mitigate, and understand the behavior of the viruses.

“It is important that we are reacting quickly, as things happen. I am happy that concrete work is being carried out on something before it becomes a very difficult problem,” said IAEA director general Rafael Mariano Grossi as he opened the one-day summit.

Artificial intelligence (AI) and machine learning (ML) are helping scientists, engineers, regulators, and plant decision makers in their research and development of clean energy production to achieve a net-zero carbon footprint. While this science is new in terms of actual applications, it is fostering innovation in a variety of domains, from material discovery and qualification to advanced reactor design to supporting efficiencies in current power plants and transforming the usability of nuclear power plant control rooms.

Using nuclear power technology to produce clean hydrogen is getting a visibility boost as the Department of Energy hosts a virtual three-day (June 6–8) Annual Merit Review and Peer Evaluation Meeting on the agency’s efforts to accelerate clean hydrogen production. On June 6, the DOE announced a notice of intent (NOI) to fund the Bipartisan Infrastructure Law’s $8 billion program to develop regional clean hydrogen hubs (H2Hubs) and the launch of a new Hydrogen Shot Incubator Prize that seeks “disruptive technologies” to reduce the cost of clean hydrogen production. That same day, Westinghouse Electric Company and Bloom Energy Corp. (a maker of solid oxide electrolyzer technology) announced a letter of intent to develop electrolyzers for use in the commercial nuclear power market and said they are “well positioned to support the U.S. Department of Energy’s developing hydrogen hubs.”

A newly released study led by physicist Paolo Ricci has revised a fundamental, foundational law of plasma generation and nuclear fusion by showing that more hydrogen fuel can safely be used in fusion reactors, thereby generating more energy than previously thought possible. Ricci, of the Swiss Plasma Center at the Swiss Federal Institute of Technology in Lausanne (EPFL), explains that his team’s results indicate that tokamaks, such as the international collaborative project ITER, could use almost twice the amount of hydrogen fuel in their plasmas without the danger of disruption, or loss of confinement of the plasma.

The research team’s findings amend one of the long-time limitations (the so-called Greenwald limit) in generating and sustaining the high-temperature plasma needed to produce fusion energy.

Accelerators and other new facilities are producing an increasing share of the radioisotopes that were once sourced solely from a handful of research reactors around the globe; demand for alpha-emitters is increasing; and the need for an ensured supply of both radioactive and stable isotopes is now heightened as many countries seek an alternative to Russian isotopes. Those are just a few of the key points that emerged from a recent webinar, “Demand and Supply of Isotopes Around the World: From Diverse Perspectives,” organized by the World Council of Isotopes, along with the Sylvia Fedoruk Canadian Centre for Nuclear Innovation and the University of Saskatchewan, the hosts of the upcoming 11th International Conference on Isotopes (11ICI).

Four national laboratories have been chosen by the Department of Energy to receive a combined $38 million to launch the Net Zero Labs Pilot Initiative: Idaho National Laboratory, National Energy Technology Laboratory, National Renewable Energy Laboratory, and Pacific Northwest National Laboratory. The pilot program is planned as “a foundation of net-zero solutions that can be replicated at facilities across DOE, the federal government, and state and local governments” in support of the administration’s goal of reaching net-zero greenhouse gas emissions no later than 2050, according to the DOE. Additional funding is expected to be available to all 17 national laboratories on a competitive basis next year.

Fusion energy is attracting significant interest from governments and private capital markets. The deployment of fusion energy on a timeline that will affect climate change and offer another tool for energy security will require support from stakeholders, regulators, and policymakers around the world. Without broad support, fusion may fail to reach its potential as a “game-­changing” technology to make a meaningful difference in addressing the twin challenges of climate change and geopolitical energy security.

The process of developing the necessary policy and regulatory support is already underway around the world. Leaders in the United States, the United Kingdom, the European Union, China, and elsewhere are engaging with the key issues and will lead the way in setting the foundation for a global fusion industry.

McMaster University, Ultra Safe Nuclear Corporation (USNC), and Global First Power (GFP) have embarked on a new partnership to study the feasibility of deploying a USNC Micro Modular Reactor (MMR) at McMaster University or an affiliated site. The three partners last week announced a memorandum of understanding that will support research on advanced reactor and small modular reactor technologies in support of Canada’s Net-Zero Emissions by 2050 goal.

Penn State University has announced plans to explore siting a Westinghouse Electric Company eVinci microreactor on its State College campus in central Pennsylvania. Under a memorandum of understanding to perform research and development work that could advance the future commercial deployment of eVinci, a team of researchers in Penn State’s Ken and Mary Alice Lindquist Department of Nuclear Engineering also plans to explore how eVinci could displace some fossil-fueled energy sources on campus.

The Defense Innovation Unit (DIU), a Department of Defense organization focused on swiftly putting commercial technology to use in the U.S. military, has awarded contracts for two nuclear technologies—compact fusion and radioisotope heat—for spacecraft that could carry a high-power payload and freely maneuver in cislunar space. The objective is to accelerate ground and flight testing and launch a successful orbital prototype demonstration of each approach in 2027.

The Versatile Test Reactor, a custom-designed sodium-cooled fast neutron spectrum test reactor, is one step closer to its goal of providing data to accelerate research, development, and demonstration of diverse advanced reactor designs. The Department of Energy released the Final Versatile Test Reactor Environmental Impact Statement (Final VTR EIS) on May 13, and 30 days after its anticipated May 20 publication in the Federal Register, the DOE will issue a Record of Decision on the project.

The Massachusetts Institute of Technology’s Plasma Science and Fusion Center (PSFC) recently announced it will expand its involvement in fusion energy research and education under a new five-year agreement with Commonwealth Fusion Systems (CFS), a fusion energy company that got its start at MIT and is now building what it says will be the world’s first net-energy fusion machine—the demo-scale SPARC.

“CFS will build SPARC and develop a commercial fusion product, while MIT PSFC will focus on its core mission of cutting-edge research and education,” said PSFC director Dennis Whyte in describing the collaboration.

The Thermal Hydraulic Experimental Test Article (THETA) at Argonne National Laboratory is now operating and providing data that could support the licensing of liquid-metal fast reactor designs by validating thermal-hydraulic and safety analysis codes. The new equipment has been installed in Argonne’s Mechanisms Engineering Test Loop (METL), and its first experiments are supporting data validation needs of Oklo, Inc., by simulating normal operating conditions as well as protected and unprotected loss-of-flow accidents in a sodium-cooled fast reactor.

From refugee in Bangladesh to top nuclear engineer at Idaho National Laboratory, ANS member Yasir Arafat has led quite an interesting life, as described in a recent online profile written by Donna Kemp Spangler for the INL website. Arafat is leading the development of the Department of Energy’s Microreactor Applications Research Validation and EvaLuation (MARVEL) project at INL. The profile notes that MARVEL, which Arafat envisioned soon after joining INL in 2019, is scheduled to be “built and demonstrated at INL’s Transient Reactor Test Facility and connected to the world’s first nuclear microgrid within two years.”

The Department of Defense wants to deploy spacecraft in cislunar space—the area between Earth and the moon’s orbit—with thrust and agility that only nuclear thermal propulsion (NTP) can provide. The Defense Advanced Research Projects Agency (DARPA), through its Demonstration Rocket for Agile Cislunar Operations (DRACO) program, is looking to private industry for the design, development, fabrication, assembly, and testing of a nuclear thermal rocket engine fueled with high-assay low-enriched uranium fuel to heat a liquid hydrogen propellant.