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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!
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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 NCSD|Cosponsored by NNPD
Tuesday, November 15, 2022|10:00–11:45AM MST|Copperwood
Session Chair:
Theresa E. Cutler
Alternate Chair:
Jesse D. Norris
Session Organizer:
Benjamin Martin
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Comparison of Approach-to-Critical Results in Current and Pulse Mode for Systems with High Starter Neutron Rates
10:00–10:20AM MST
J. Hutchinson (LANL), T. Cutler (LANL), J. Goda (LANL), T. Grove (LANL), D. Hayes (LANL), G. McKenzie (LANL), R. Sanchez (LANL), N. Thompson (LANL)
Paper
Estimating List-Mode Data Sensitivities to Nuclear Data with MCNP6
10:20–10:40AM MST
Juliann R. Lamproe (Univ. Michigan), Theresa E. Cutler (LANL), Michael Y. Hua (Univ. Michigan), Jesson D. Hutchinson (LANL), Sara A. Pozzi (Univ. Michigan)
Neutron Leakage Spectra Sensitivities for ICSBEP Benchmarks
10:40–11:00AM MST
Nicholas Thompson (LANL), Jesson Hutchinson (LANL), Jennifer Alwin (LANL), Alexander Clark (LANL), Theresa Cutler (LANL), Michael Grosskopf (LANL), Wim Haeck (LANL), Michal Herman (LANL), Noah Kleedtke (LANL), Juliann Lamproe (LANL), Robert (Bob) C. Little (LANL), Isaac Michaud (LANL), Denise Neudecker (LANL), Michael Rising (LANL), Travis Smith (LANL), Scott Vander Wiel (LANL)
The Prompt Fission Uranium Neutron Spectrum (PFUNS) Critical Experiment
11:00–11:20AM MST
Theresa Cutler (LANL), Jesson Hutchinson (LANL), Rene Sanchez (LANL), Robert Weldon (LANL), Nicholas Whitman (LANL)
High-Fidelity Measurements for Flattop-HEU Benchmark Reevaluation
11:20–11:40AM MST
Kristin Stolte (LANL), Theresa Cutler (LANL), Charlie Kiehne (LANL), Kelsey Amundson (LANL), Dave Hayes (LANL)
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