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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|Methods
Tuesday, April 23, 2024|10:15AM–12:00PM PDT|Continental Ballroom 1
Session Chair:
Tatsuya Fujita (Japan Atomic Energy Agency)
Alternate Chair:
Germina Ilas (ORNL)
Session Organizer:
Go Chiba (Hokkaido University)
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Verification of a CARIBOU-OpenMC Workflow for the Analysis of HTGR-Like Systems Using the Proposed Ontario Tech Subcritical Assembly
10:15–10:35AM PDT
Kevin Sawatzky (Ontario Tech Univ.), Kirk D. Atkinson (Ontario Tech Univ.)
Paper
Comparison of Burnup Sensitivity Between Prismatic HTGR and LWR
10:35–10:55AM PDT
Go Chiba (Hokkaido Univ.)
Nuclide Inventory Validation: Effect of Nuclear Data Libraries
10:55–11:15AM PDT
Germina Ilas (ORNL), Jesse Brown (ORNL)
Simultaneous Adjustment of Uncertain Modeling Parameters and Experimental Data Through Post-Irradiation Examination Data Analyses
11:15–11:35AM PDT
Keita Yoshikawa (Hokkaido Univ.), Go Chiba (Hokkaido Univ.), Yuya Inagaki (Hokkaido Univ.), Junshuang Fan (Hokkaido Univ.)
Extension of RMC Burnup Calculations with an Energy-Dependent Branching Ratio Treatment
11:35–11:55AM PDT
Hao Luo (Tsinghua Univ.), Jiang Shihang (Tsinghua Univ.), Huang Shanfang (Tsinghua Univ.), Wang Kan (Tsinghua Univ.)
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