MIT-led model simulates radionuclide migration in geologic disposal systems

July 22, 2025, 3:00PMRadwaste Solutions
(A) Computational domain and material distribution used in the simulations. The domain is rotated so that the Opalinus Clay strata are vertical. (B) 3D contour plots of neutral uncharged tritiated water (left) and charged 36Cl− (right) solutes at 900 days. (C) Comparison of observed (symbols) and simulated (lines) borehole concentrations using the 3D model. (Image: Sarsenbayev et al.)

Researchers with the Massachusetts Institute of Technology, working with scientists from Lawrence Berkeley National Laboratory and the University of Orléans, have modeled radionuclide behavior in deep geologic formations, offering a tool for developing a defensible safety case for the underground disposal of radioactive waste.

Nuclear technology for today and tomorrow

July 22, 2025, 11:59AMNuclear NewsHash Hashemian

Hash Hashemian
president@ans.org

I am deeply honored and grateful to have been elected president of the American Nuclear Society. Your support and confidence in me are truly humbling, and I want to extend my heartfelt thanks to each and every one of you.

As president, my top priority is to expedite the deployment of new nuclear reactors, beginning with small modular reactors and eventually progressing to Generation IV systems. I will also work to ensure that the United States keeps its global leadership in this field. For the U.S. to do that, the federal government must maintain and expand its financial support of the nuclear industry by preserving critical incentives, tax provisions, and infrastructure investments.

Bahrain signs a nuclear collaboration MOU with the U.S.

July 22, 2025, 9:30AMNuclear News

Less than a week after news broke of the U.S. entering into civil nuclear talks with Malaysia, the U.S. State Department announced that Secretary of State Marco Rubio and Bahrain’s Minister of Foreign Affairs Abdullatif bin Rashid Al Zayani have also signed a memorandum of understanding concerning civil nuclear cooperation.

ANS leadership lays groundwork for new 10-year strategic plan

July 21, 2025, 3:00PMANS News

The last time the American Nuclear Society Board of Directors approved a strategic plan was back in 2018 under the direction of past president Bob Coward. Realizing a lot has changed with both ANS and the wider nuclear community, the current Board of Directors decided it was time to give our strategic plan a fresh look. Following the November 2024 ANS Conference, the Board has undertaken a comprehensive strategic planning process to align the Society’s direction with the realities of the rapidly changing energy and technology landscape.

Test reactor fuel fabrication will be fast-tracked by DOE under new pilot program

July 21, 2025, 12:12PMNuclear News

The Department of Energy has announced a program to accelerate nuclear fuel fabrication for new test reactors. The Fuel Line Pilot Program would see the DOE approve facilities developed by U.S. companies to produce the fuel needed for test reactors the DOE expects to authorize under the Reactor Pilot Program announced in June. Like the reactors they’re meant to fuel, the fabrication facilities would be built on sites outside the DOE’s national laboratories but authorized by the DOE under “a fast-tracked approach to enable future commercial licensing activities for potential applicants.”

House Oversight Committee schedules hearing on nuclear energy

July 21, 2025, 9:30AMNuclear News

Burlison

Rep. Eric Burlison (R., Mo.), the chairman of the U.S. House Oversight and Accountability Subcommittee on Economic Growth, Energy Policy, and Regulatory Affairs, has announced a hearing on “The New Atomic Age: Advancing America’s Energy Future.”

The hearing will take place on Tuesday, July 22, at 1:00 pm (ET). Witnesses include Alex Epstein, president and founder of the Center for Industrial Progress, and Joshua Smith, energy policy lead at the Abundance Institute.

Details: According to the chairman’s office, the hearing will explore recent developments in nuclear energy technology, the commercial viability of advanced reactors, supply chain challenges, and policy pathways for Congress to strengthen nuclear power in the United States.

IAEA launches infographic design contest on nuclear preparedness and response

July 21, 2025, 7:03AMNuclear News

The International Atomic Energy Agency has launched an infographic design contest for young professionals aged 18 to 35 to raise awareness about emergency preparedness and response (EPR) in nuclear and radiological contexts.

Contest guidelines and terms can be found here.

The RAIN scale: A good intention that falls short

July 18, 2025, 3:28PMNuclear NewsAmir A. Bahadori

Radiation protection specialists agree that clear communication of radiation risks remains a vexing challenge that cannot be solved solely by finding new ways to convey technical information.

Earlier this year, an article in Nuclear News described a new radiation risk communication tool, known as the Radiation Index, or, RAIN (“Let it RAIN: A new approach to radiation communication,” NN, Jan. 2025, p. 36). The authors of the article created the RAIN scale to improve radiation risk communication to the general public who are not well-versed in important aspects of radiation exposures, including radiation dose quantities, units, and values; associated health consequences; and the benefits derived from radiation exposures.

DOE tests new sealing system for spent fuel canisters

July 18, 2025, 12:04PMRadwaste Solutions
Team members and the new closure welding system that seals canisters containing spent fuel. (Photo: DOE)

Teams from the Department of Energy’s Offices of Environmental Management and Nuclear Energy recently collaborated on the Road Ready Demonstration Project by testing new equipment to seal spent nuclear fuel into a safe and transportable system for future shipments out of Idaho.

Kairos project moves ahead at Oak Ridge

July 18, 2025, 9:29AMNuclear News
The ETU 3.0 reactor vessel was lowered into position using construction cranes and mounted on a support structure attached to the building’s foundation. (Photo: Kairos Power)

A reactor vessel has been installed by Kairos Power for its third Engineering Test Unit (ETU 3.0) at the company’s campus in Oak Ridge, Tenn.

INL to use Microsoft’s AI to streamline nuclear licensing

July 18, 2025, 7:08AMNuclear News
Image: INL

The Idaho National Laboratory has announced that it will collaborate with Microsoft on the use of artificial intelligence technologies to streamline the nuclear permitting and licensing application process. Using Microsoft’s Azure cloud computing platform, INL will generate the engineering and safety analysis reports that are required to be submitted for construction permits and operating licenses for nuclear power plants.

A big day for nuclear at the Pennsylvania Energy and Innovation Summit

July 17, 2025, 12:35PMNuclear News
The president and government officials at the meeting. (Photo: EPA)

Representatives across all levels of Pennsylvania government convened at Carnegie Mellon University on July 15 with investors and key leaders in the energy community at the behest of Sen. Dave McCormick (R., Pa.).

NRC confronts “unprecedented position”

July 17, 2025, 7:01AMNuclear News

The Nuclear Regulatory Commission, which currently has three serving commissioners and—according to recent media reports—a detailee from the Department of Government Efficiency (DOGE), is accelerating licensing timelines to meet the requirements of President Trump’s May 23 Executive Order 14300, “Ordering the Reform of the Nuclear Regulatory Commission,” and the ADVANCE Act. On top of that, the agency is preparing for an anticipated rush of applications while dealing with a reduced workforce.

Nuclear energy for maritime shipping and coastal applications

July 16, 2025, 3:01PMNuclear News

The Boston-based Deon Policy Institute has published a white paper that examines the applications of nuclear energy in the maritime sector—specifically, floating nuclear power plants and nuclear propulsion for commercial vessels. Topics covered include available technologies, preliminary cost estimates, and a status update on the regulatory framework.

Unique opportunity: The paper points out that nuclear energy has the potential to benefit the shipping industry with high energy efficiency, lower operating costs, and zero carbon emissions. The report has a special focus on Greece, a nation that controls about 20 percent of the global commercial fleet and thus has an opportunity to take a leading role in the transition to nuclear-powered shipping.

ANS seeks program evaluators for ABET accreditation

July 16, 2025, 12:00PMNuclear News

When ABET visits universities for accreditation purposes, it’s crucial that a qualified nuclear expert performs the assessment of that school’s nuclear engineering, radiological engineering, and/or health physics programs. The Accreditation Policies and Procedures Committee (APPC) of the American Nuclear Society works to ensure that a program evaluator (PEV) from the Society leads these ABET assessments.

UM conducts molten salt experiment

July 16, 2025, 9:46AMNuclear News
A schematic diagram of the Shaft Seal Test Facility. (Image: NERS)

For 2,300 hours, the molten salt pump Shaft Seal Test Facility (SSTF) operated at the University of Michigan’s Thermal Hydraulics Laboratory, according to an article from UM. The large-scale experiment was designed to evaluate shaft seal performance in high-temperature pump systems. Fewer than 10 facilities worldwide have successfully operated fluoride or chloride salts for more than 100 hours using over 10 kilograms of material.

Trinity Test at 80: American Nuclear Society CEO Craig Piercy reflects on the Manhattan Project

July 16, 2025, 7:02AMANS NewsCraig Piercy

By Craig H. Piercy, CEO and Executive Director of the American Nuclear Society

Eighty years ago today, at exactly 5:29:45 a.m. local time* on July 16, 1945, the United States Army detonated the world’s first nuclear bomb in the Jornada del Muerto desert of southern New Mexico. The searing flash and thunderous shockwave marked the culmination of the Manhattan Project, a secret, three-year national effort to harness nuclear fission and hasten the end of the Second World War.

The Trinity Test, overseen by Manhattan Project director Major General Leslie Groves and Los Alamos Laboratory director Dr. J. Robert Oppenheimer, was the final act of that race to build the atomic bomb. Hoisted atop a 100-foot steel tower, the plutonium implosion device, known as the Gadget, unleashed a blast equal to 21,000 tons of TNT and temperatures hotter than the center of the sun.

From ten miles away, observers wearing darkened welder goggles looked on in stunned silence. “We knew the world would not be the same,” recalled Oppenheimer.