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|Sponsored by MCD
Wednesday, June 19, 2024|3:15–5:00PM PDT|Jasmine B
Session Chair:
Jeremy Roberts
Alternate Chair:
Sebastian Schunert
Session Organizer:
To access paper attachments, you must be logged in and registered for the meeting.
Register NowLog In
A Study on Simplified Energy and Geometry-Based MC for Recurring Equivalence to Continuous Energy MC
3:15–3:35PM PDT
Inhyung Kim (Univ. California, Berkeley), Massimiliano Fratoni (Univ. California, Berkeley)
Paper
Investigation of Doppler Broadening Methods Within the Shift Monte Carlo Radiation Transport Code
3:35–3:55PM PDT
Amanda M. Bachmann (ANL), Seth R. Johnson (ORNL), Shane W.D. Hart (ORNL), Elliott D. Biondo (ORNL), Thomas M. Evans (ORNL)
Exploratory Data Analysis of Long-Term Meteorological Data at a DOE Site for Nuclear Safety
3:55–4:15PM PDT
Xiao-Ying Yu (ORNL)
Implementation and Verification of Element-Wise Density and Temperature Specifications in MCNP6 Unstructured Mesh Simulations
4:15–4:35PM PDT
Pablo A. Vaquer (LANL), Michael E. Rising (LANL), Joel A. Kulesza (LANL), Colin A. Weaver (LANL)
Presentation Slides (Visible to Attendees) — Presentation
New and Improved Capabilities in SCALE's Monte Carlo Code Shift
4:35–4:45PM PDT
Tara Pandya (ORNL), Tarek Ghaddar (ORNL), Matthew Jessee (ORNL), Rike Bostelmann (ORNL), Steven Hamilton (ORNL), Seth Johnson (ORNL)
Evolutionary Algorithm Fitting of X-Ray Fluorescence Data for Elemental Analysis
4:45–4:55PM PDT
Jason Clifford (ANL), Alexander Heifetz (ANL), Madis Michor (Univ. Illinois, Chicago), Mark Schlossman (Univ. Illinois, Chicago)
To join the conversation, you must be logged in and registered for the meeting.