Issues arise over South Korean access to U.S. nuclear info

March 27, 2025, 12:00PMANS Nuclear Cafe

The Korea Times has reported that a Department of Energy contract employee at Idaho National Laboratory has been terminated for trying to take INL-owned, export-controlled, proprietary nuclear reactor design software on a flight to South Korea. The individual was stopped while attempting to board a Korea-bound flight with the design software, according to a formal report that the DOE Office of the Inspector General submitted to Congress for the period October 2023–March 2024.

Idaho cleanup contractor funds local STEAM learning

March 21, 2025, 9:30AMRadwaste Solutions
Students use materials bought with funds from the IEC’s Full STEAM Ahead in the Classroom grants to make robots. (Photo: DOE)

The Idaho Environmental Coalition (IEC) has provided funding to 15 classrooms in southeastern Idaho to support local educators and encourage the next generation of workers to pursue technical careers, the Department of Energy’s Office of Environmental Management announced. The IEC, which is led by Amentum and includes North Wind Portage as a partner, was awarded a 10-year, $6.4 billion contract in 2021 to manage cleanup operation at the Idaho National Laboratory Site.

U.S. and Japan collaborate on high-burnup fast reactor fuel safety tests at INL

March 13, 2025, 12:02PMNuclear News
Photo: INL

Idaho National Laboratory recently conducted a safety test on high-burnup fast reactor fuel from historic irradiation testing at the lab’s Experimental Breeder Reactor-II (EBR-II). According to the Department of Energy, which announced the work March 12, it’s the first such safety test to be performed in over 20 years.

INL achieves fuel-making milestone for MCRE

March 6, 2025, 12:00PMNuclear News
Uranium chloride fuel salt. (Photo: INL)

Scientists at Idaho National Laboratory continue to make progress on the Molten Chloride Reactor Experiment (MCRE), which entails research and development for the first operational advanced nuclear reactor to use a mixture of molten chloride salt and uranium as fuel and coolant. The experiment is evaluating the safety and physics of the molten chloride fast reactor that Southern Company and TerraPower are planning to build.

Fabrication milestone for INL’s MARVEL microreactor

February 24, 2025, 7:01AMNuclear News
From left, INL’s Mark Nefzger, Raymond Clark, and John Jackson and DOE-NE’s and Diana Li pose with a MARVEL component.. (Photo: DOE-NE)

A team from Idaho National Laboratory and the Department of Energy’s Office of Nuclear Energy recently visited Carolina Fabricators Inc. (CFI) in West Columbia, S.C., to launch the fabrication process for the primary coolant system of the MARVEL microreactor. Battelle Energy Alliance, which manages INL, awarded the CFI contract in January.

Idaho successfully tests robot to help retrieve radioactive waste

February 20, 2025, 9:30AMNuclear News
Idaho Cleanup Project crews with the Calcine Disposition Project watch as robotics equipment is tested remotely inside a full-scale replica of a calcine bin set. (Photo: DOE)

A team with the Department of Energy’s Idaho Cleanup Project successfully tested robotic equipment being developed to retrieve radioactive calcine, a granular solid waste, at the Idaho National Laboratory Site, the DOE’s Office of Environmental Management has announced.

INL joins with Idaho universities on advanced projects

February 5, 2025, 7:01AMNuclear News
INL director John Wagner and University of Idaho president C. Scott Green at the SUPER agreement signing. (Photo: INL)

New Strategic Understanding for Premier Education and Research (SUPER) agreements signed by Idaho National Laboratory, Boise State University, and University of Idaho will foster collaboration among the institutions in advanced energy and cybersecurity projects. The five-year agreements are designed to open doors for research and development opportunities, while advancing existing research and development initiatives, including projects in nuclear energy and high-performance computing.

First GAIN vouchers of 2025 go to Curio, Deep Fission, Kairos, and NuCube Energy

January 9, 2025, 7:04AMNuclear News

The Department of Energy’s Gateway for Accelerated Innovation in Nuclear (GAIN) has awarded four fiscal year 2025 vouchers to support the development of advanced nuclear technologies. Each company will get access to specific capabilities and expertise in the DOE’s national laboratory complex—in this round of awards both Idaho National Laboratory and Pacific Northwest National Laboratory are named—and will be responsible for a minimum 20 percent cost share, which can be an in-kind contribution.

Jay F. Kunze—ANS member since 1960

December 16, 2024, 7:01AMNuclear News

Jay F. Kunze

We welcome ANS members with long careers in the community to submit their own stories so that the personal history of nuclear power can be captured. For information on submitting your stories, contact nucnews@ans.org.

I was born and raised in Pittsburgh, Pa. In 1959, I received my Ph.D. in experimental nuclear physics utilizing the 400-MeV synchrocyclotron at Carnegie Mellon University, involving measuring the scattering of pi-­mesons from protons (as a liquid hydrogen target). I joined ANS in January 1960.

I later joined General Electric’s Aircraft Nuclear Propulsion project to build a nuclear jet engine at the National Reactor Testing Station at Idaho Falls (now Idaho National Laboratory). In January 1961, the U.S. Army’s experimental nuclear reactor SL-1 blew up, killing three army personnel. At first, the Air Force would not permit General Electric to take part in the cleanup, but after the Aircraft Nuclear Propulsion project was canceled by President Kennedy in March, GE took on the SL-1 disassembly and analysis project. I oversaw the analysis, which took nearly two years.

Idaho finds solutions to challenges posed by aging waste drums

December 11, 2024, 9:32AMRadwaste Solutions
ICP crews inspect transuranic waste drums to ensure they comply with shipping requirements. (Photo: DOE)

The Department of Energy’s Idaho Cleanup Project (ICP) has improved transuranic waste operations to address aging waste containers being stored at the Advanced Mixed Waste Treatment Project (AMWTP) at the Idaho National Laboratory Site, the DOE’s Office of Environmental Management announced on December 10.

Idaho’s IWTU surpasses tank waste treatment goal

December 2, 2024, 7:02AMRadwaste Solutions
IWTU operators monitor radiological operations during the current waste treatment campaign at the Idaho National Laboratory Site facility. (Photo: DOE)

As of last week, crews with Department of Energy cleanup contractor Idaho Environmental Coalition (IEC) processed more than 142,000 gallons of radioactive sodium-bearing tank waste at Idaho’s Integrated Waste Treatment Unit (IWTU) this year.

Radiant secures funding, moves toward microreactor testing in INL’s DOME

November 25, 2024, 9:36AMNuclear News
A rendering of a data center powered by Radiant's Kaleidos microreactors (shown in the foreground). (Image: Ryan Seper)

Radiant Industries has announced a $100 million Series C funding round to be used primarily to complete its Kaleidos Development Unit (KDU) microreactor for testing in Idaho National Laboratory's Demonstration of Microreactor Experiments (DOME) facility within two years.

Clean Core Thorium Energy marks fuel testing milestone and agreement with L&T

November 15, 2024, 12:00PMNuclear News
INL team removing and staging irradiated ANEEL fuel rodlets in the ATR canal. (Photo: Clean Core)

Clean Core Thorium Energy (Clean Core) announced November 12 that test rodlets of its patented thorium-uranium fuel design known as ANEEL (advanced nuclear energy for enriched life) have reached a burnup milestone in the Advanced Test Reactor (ATR) at Idaho National Laboratory.

My Spaceship Earth: A structural engineer’s path to nuclear

November 13, 2024, 7:00AMNuclear NewsChristine Roy

Christine Roy

While flipping through the course catalog at the University of Massachusetts–Amherst, I read that civil engineers can design amusement park rides. I was instantly inspired and chose my major because I wanted to design something for Walt Disney World. After college, I started my dream job at Simpson Gumpertz & Heger, which is famous for designing Spaceship Earth at Epcot Center, a celebration of human innovation, communication, and the progress of civilization. This was a win.

My introduction to nuclear

During my first two years at SGH, I experienced all aspects of working in the Engineering Mechanics & Infrastructure group, from analyzing structural failures to studying pipelines and modeling antennas. In 2006, I worked on my first nuclear facility. It consisted of structural analysis and design of the Integrated Waste Treatment Unit at Idaho National Laboratory.

DOE plans removal of naval prototype reactor, opens public comment period

October 17, 2024, 12:00PMRadwaste Solutions
The S5G prototype, which was constructed to simulate submarine operations and could mimic ocean-like conditions, is positioned inside a subgrade basin. (Photo: IEC)

The Department of Energy is proposing to fully decommission the Submarine 5th Generation General Electric (S5G) prototype at the Naval Reactors Facility on the Idaho National Laboratory site. Along with the Environmental Protection Agency and the state of Idaho, the DOE has initiated a 30-day public comment period (ending November 14) on the planned end state for the facility and its defueled reactor vessel.

DOE approves conceptual safety design report for Oklo fuel fabrication facility

October 16, 2024, 11:59AMNuclear News
At INL's Fuel Conditioning Facility, spent nuclear fuel material is being recycled into fuel for Oklo's commercial Aurora Powerhouse deployment at INL. (Photo: INL)

Oklo Inc. announced yesterday that a safety design report for the Aurora fuel fabrication facility the company plans to build at Idaho National Laboratory has the approval of the Department of Energy. At the facility, Oklo plans to use high-assay low-enriched uranium (HALEU) that has been recovered from used Experimental Breeder Reactor-II fuel to produce fuel for its first planned microreactor—dubbed Aurora—which is also set for deployment at INL.

Insights from the DOME draft EA on EBR-II’s second life as a reactor test bed

October 15, 2024, 12:00PMNuclear News
The EBR-II dome, site of the DOME advanced reactor test bed. (Photo: INL)

On October 8, the Department of Energy’s Idaho Operations Office released the draft environmental assessment (EA) Demonstration of Microreactor Experiment (DOME) Test Bed Operations. The draft EA assesses the potential environmental impacts of plans to use the containment dome of the former Experimental Breeder Reactor-II at Idaho National Laboratory’s Materials and Fuels Complex (MFC) to test multiple TRISO-fueled advanced reactor designs on a micro scale.

NSUF awards 19 Rapid Turnaround Experiments

September 27, 2024, 10:07AMNuclear News

The Department of Energy’s Office of Nuclear Energy has awarded 19 experimental proposals access to Nuclear Science User Facilities (NSUF) under the 2024 “third call” for Rapid Turnaround Experiment (RTE) projects. In total, the awards are valued at about $1 million and were granted to 19 principal investigators from 11 institutions, including universities and industry researchers.