ANS Annual Conference: Nonproliferation considerations about HALEU enrichment

June 20, 2024, 9:30AMNuclear News

The technical session “HALEU and Nonproliferation” on Tuesday at the American Nuclear Society Annual Conference focused on why increased nuclear fuel enrichment comes with increased responsibility. Reactor designers are pursuing high-assay low-enriched uranium fuel for their advanced designs, and technical and policy questions surrounding nuclear nonproliferation will need to be addressed if the United States is to become a HALEU supplier.

Securing the advanced reactor fleet

May 17, 2024, 3:00PMNuclear NewsBen Cipiti, Katya Le Blanc, and Cory Hatch

Physical protection accounts for a significant portion of a nuclear power plant’s operational costs. As the U.S. moves toward smaller and safer advanced reactors, similar protection strategies could prove cost prohibitive. For tomorrow’s small modular reactors and microreactors, security costs must remain appropriate to the size of the reactor for economical operation.

Sandia expands software billed as “Swiss Army knife” of nuclear system safety

August 30, 2021, 3:00PMNuclear News
Sandia's Brad Beeny (left) and Larry Humphries examine remnants from a series of lower head failure experiments. Results from these and other experiments are used to inform nuclear accident modeling computer code. (Photo: Randy Montoya)

Researchers at Sandia National Laboratories have been expanding MELCOR—the severe accident modeling computer code used by the Nuclear Regulatory Commission to evaluate the safety of light water reactors—to study the small modular reactors and non-light-water advanced reactors that are under development. An article published in Sandia Lab News on August 27 describes in detail how MELCOR is being expanded to work with different reactor geometries, fuel types, and coolant systems.