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.

Clean Core Thorium Energy (Clean Core) has announced that its ANEEL fuel is ready to begin irradiation testing and qualification at Idaho National Laboratory. The fuel, made of thorium and HALEU, was developed by Clean Core for use in pressurized heavy water reactors, including CANDU (Canadian deuterium-uranium) reactors. Irradiation of the fuel samples in INL’s Advanced Test Reactor (ATR) is set to begin this month.

It is the 1940s in Maywood, N.J. A new residential community has sprouted up, and the homeowners want to beautify their front lawns, so they go to a nearby property to gather some fresh topsoil. Little did they know that they’re helping to plant the seeds for one of the largest and most high-profile environmental cleanup projects in the nation.

Today’s atomic clocks are exceptional timepieces that won’t lose or gain a second in 30 billion years. But if you’re looking for even more precision, you’ll be glad to learn that physicists at CERN’s ISOLDE nuclear physics facility have observed the decay of thorium-229 nuclei trapped in a crystalline structure and confirmed the potential for a nuclear clock. CERN announced the news on May 24.

Director General Daniel Alvarez, left, and John Kutsch. (Photo: TEA)

Representatives of El Salvador’s government and the Thorium Energy Alliance have signed a memorandum of understanding to promote El Salvador’s plan for renewable energy through thorium.

The document was signed on March 14 by Daniel Alvarez, director general of energy, hydrocarbons, and mines, and John Kutsch, executive director of the Thorium Energy Alliance, at the El Salvador embassy in Washington, D.C. The signing was witnessed by Milena Mayorga, El Salvador’s ambassador to the United States.

The House Appropriations Committee has delivered to the full House the fiscal year 2023 Energy and Water Development bill in a 32–24 vote, along with a notable amendment concerning, among other things, Diablo Canyon, high-assay low-enriched uranium (HALEU), and thorium molten salt reactors. The amendment received a thumbs-up at the committee’s June 28 markup session via voice vote.

Legislation known as the Thorium Energy Security Act, introduced in Congress last month by U.S. Sen. Tommy Tuberville (R., Ala.), would put a halt to the destruction of U.S. stockpiles of uranium-233 and instead would foster its integration into the development of thorium molten salt–cooled reactors, Newsweek reported last week. The act has been referred to the Senate Committee on Energy and Natural Resources.

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.

This past October, the Department of Energy’s Oak Ridge Office of Environmental Management (OREM) and its contractor Isotek successfully completed processing and disposing the low-dose inventory of uranium-233 stored at Oak Ridge National Laboratory (ORNL), ending a two-year effort that has eliminated a portion of the site’s legacy nuclear material and provided rare nuclear isotopes for next-generation cancer treatment research.

Energy secretary Jennifer Granholm (top photo) and Norwegian minister of Trade and Industry Iselin Nybø (bottom photo, right) hold up signed versions of an MOU on the conversion of Norway’s HEU to LEU. (Photos: NNSA)

The U.S. Department of Energy and Norway’s Ministry of Trade, Industry, and Fisheries have signed a memorandum of understanding to advance a project aimed at eliminating Norway’s high-enriched uranium by downblending it to low-enriched uranium. If the project is successfully completed, Norway will become the 34th country (plus Taiwan) to be considered HEU-free.

In the downblending process, HEU is mixed with depleted or natural uranium to reduce the U-235 concentration to below 20 percent, resulting in LEU, which cannot be used to make an improvised nuclear device (aka “dirty bomb”). According to the DOE’s National Nuclear Security Administration, the challenge with Norway’s HEU has been that much of it is mixed with thorium, making the use of other disposition techniques more problematic.

A closer look: Signed on September 1 by U.S. energy secretary Jennifer Granholm and her Norwegian counterpart, Iselin Nybø, minister of trade and industry, the MOU calls for small-scale downblending activities to begin in 2022 using Norway’s existing infrastructure. It also paves the way for the eventual deployment of the DOE’s Mobile Melt-Consolidate system to complete the work.

China is moving ahead with the development of an experimental reactor that would be the first of its kind in the world and “could prove key to the pursuit of clean and safe nuclear power,” according to an article in New Atlas.