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Division Spotlight
Reactor Physics
The division's objectives are to promote the advancement of knowledge and understanding of the fundamental physical phenomena characterizing nuclear reactors and other nuclear systems. The division encourages research and disseminates information through meetings and publications. Areas of technical interest include nuclear data, particle interactions and transport, reactor and nuclear systems analysis, methods, design, validation and operating experience and standards. The Wigner Award heads the awards program.
Meeting Spotlight
ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
Standards Program
The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Feb 2025
Jul 2024
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Nuclear Science and Engineering
March 2025
Nuclear Technology
Fusion Science and Technology
February 2025
Latest News
Colin Judge: Testing structural materials in Idaho’s newest hot cell facility
Idaho National Laboratory’s newest facility—the Sample Preparation Laboratory (SPL)—sits across the road from the Hot Fuel Examination Facility (HFEF), which started operating in 1975. SPL will host the first new hot cells at INL’s Materials and Fuels Complex (MFC) in 50 years, giving INL researchers and partners new flexibility to test the structural properties of irradiated materials fresh from the Advanced Test Reactor (ATR) or from a partner’s facility.
Materials meant to withstand extreme conditions in fission or fusion power plants must be tested under similar conditions and pushed past their breaking points so performance and limitations can be understood and improved. Once irradiated, materials samples can be cut down to size in SPL and packaged for testing in other facilities at INL or other national laboratories, commercial labs, or universities. But they can also be subjected to extreme thermal or corrosive conditions and mechanical testing right in SPL, explains Colin Judge, who, as INL’s division director for nuclear materials performance, oversees SPL and other facilities at the MFC.
SPL won’t go “hot” until January 2026, but Judge spoke with NN staff writer Susan Gallier about its capabilities as his team was moving instruments into the new facility.
Advances in Nuclear Nonproliferation Technology and Policy Conference (ANTPC 2023)
Technical Session
Wednesday, November 15, 2023|10:00–11:45AM EST|Monroe
Session Chair:
Jeremy Whitlock (IAEA)
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Development of Advanced Neutron Signatures to Safeguard 233U in the Thorium Fuel Cycle
10:00–10:20AM EST
Oskar Searfus (Sandia), Peter Marleau (Sandia), Eva Uribe (Sandia), Igor Jovanovic (Univ. Michigan), Heather Reedy (Sandia)
Paper
Advanced Neutron Non-destructive Assay Methods for 233U Mass Quantification in Emerging Thorium Fuel Cycles
10:20–10:40AM EST
Vlad Henzl (LANL), Louise Evans (ORNL), Heather Reedy (Sandia), Matthew Cook (Y12 National Security Complex), Karen Hogue (ORNL), Daniel Jackson (LANL), Madeline Lockhart (LANL), Peter Marleau (Sandia), Richard Reed (ORNL), Alexander Roberts (Y12 National Security Complex), Oskar Seerfus (Sandia), Eva Uribe (Sandia)
Detection of Incipient Anomalies in Nuclear Systems Through Fusion of Multisensory Data with LSTM Autoencoder
10:40–11:00AM EST
Alexandra Akins (ANL), Alexander Heifetz (ANL)
Characterization of Dissolved High-Burnup Nuclear Fuel with Microcalorimeter, High-Purity Germanium, and Cadmium Zinc Telluride Gamma Spectroscopy
11:00–11:20AM EST
Mark Croce (LANL), Christine Mathew (LANL), Sophie Weidenbenner (LANL), Daniel McNeel (LANL), David Mercer (LANL), Katherine Schreiber (LANL), Matthew Carpenter (LANL), Rico Schoenemann (LANL), Wade Ivey (ORNL), Tammy Keever (ORNL), Lisa Duncan (ORNL), Haley Wightman (ORNL), Michael Dion (ORNL), Daniel Becker (Univ. Colorado), Joel Ullom (National Institute of Standards and Technology), Katrina Koehler (Houghton Univ.)
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