ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Explore membership for yourself or for your organization.
Conference Spotlight
2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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!
Latest Magazine Issues
Oct 2025
Jul 2025
Latest Journal Issues
Nuclear Science and Engineering
November 2025
Nuclear Technology
October 2025
Fusion Science and Technology
Latest News
NEA report calls for more accurate data on SNF heat decay
The OECD Nuclear Energy Agency has issued a report calling for more-detailed information on tracking the decay heat of spent nuclear fuel from light water reactors. According to the NEA, the report highlights the increasing importance of accurate decay heat estimations due to evolving fuel characteristics, including higher initial fuel enrichment, increased burn-up rates, and extended reactor cycle lengths.
The report, Summary of the NEA Assessment on Spent Nuclear Fuel Decay Heat for Light Water Reactors, summarizes the findings of a subgroup of the NEA’s Working Party on Nuclear Criticality Safety (WPNCS), which ran from January 2022 to January 2024.
Technical Session|Methods
Monday, April 22, 2024|10:15AM–12:00PM PDT|Continental Ballroom 2
Session Chair:
David Griesheimer (Naval Nuclear Laboratory)
Alternate Chair:
Valeria Raffuzzi (Univ. Cambridge)
To access paper attachments, you must be logged in and registered for the meeting.
Register NowLog In
Nemo: A Centralized Model Representation for Reactor Physics Solvers
10:15–10:35AM PDT
P.E. Burke (Naval Nuclear Laboratory), S.J. Douglass (Naval Nuclear Laboratory), D.F. Gill (Naval Nuclear Laboratory), D.P. Griesheimer (Naval Nuclear Laboratory), M.W. Hackemack (Naval Nuclear Laboratory), B.R. Nease (Naval Nuclear Laboratory)
Paper
Assessment of Heuristics for the Automated Generation of 2D Method of Characteristics Mesh
10:35–10:55AM PDT
Kyle Vaughn (Univ. Michigan), Brendan Kochunas (Univ. Michigan)
Presentation Slides (Visible to Attendees)
Geometric Acceleration Structures to Speed Up Cell Searches in OpenMC
10:55–11:15AM PDT
Saad Amin (Mission San Jose High School), Gavin Ridley (MIT), Benoit Forget (MIT)
A Recursive Subdivision Algorithm for Delta-Tracking on Bezier Curve Geometries in SCONE
11:15–11:35AM PDT
Jamie K. Edwards (Univ. Cambridge), Andrew Davis (UKAEA), Eugene Shwageraus (Univ. Cambridge)
A Delta-Tracking Method that Supports Finite-Element Material Properties in Mesh-Based Monte Carlo Codes
11:35–11:55AM PDT
Pablo A. Vaquer (LANL), Michael E. Rising (LANL), Joel A. Kulesza (LANL), Colin A. Weaver (LANL), Colin J. Josey (LANL)
To join the conversation, you must be logged in and registered for the meeting.
