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.
Division Spotlight
Fuel Cycle & Waste Management
Devoted to all aspects of the nuclear fuel cycle including waste management, worldwide. Division specific areas of interest and involvement include uranium conversion and enrichment; fuel fabrication, management (in-core and ex-core) and recycle; transportation; safeguards; high-level, low-level and mixed waste management and disposal; public policy and program management; decontamination and decommissioning environmental restoration; and excess weapons materials disposition.
Meeting Spotlight
2025 ANS Annual Conference
June 15–18, 2025
Chicago, IL|Chicago Marriott Downtown
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
May 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
June 2025
Nuclear Technology
Fusion Science and Technology
Latest News
NWMO chooses vendors for Canadian repository
Canada’s Nuclear Waste Management Organization has selected five companies it is to work with to design and plan the organization’s proposed deep geologic repository for spent nuclear fuel. As the owner of the project, the NWMO will be working with WSP Canada, Peter Kiewit Sons (Kiewit), Hatch Ltd., Thyssen Mining Construction of Canada, and Kinectrics.
Advanced Reactor Safety (ARS)
Technical Session
Wednesday, June 19, 2024|10:00–11:45AM PDT|Palm A
Session Chair:
Aslak Stubsgaard
Session Organizer:
Alternate Chair:
Mihai A. Diaconeasa
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Improving the Efficiency of Dynamic Probabilistic Risk Assessment with Monte Carlo Tree Search and Importance Sampling
10:00–10:20AM PDT
Joseph O'Leary (Univ. Maryland), Yunfei Zhao (Univ. Maryland)
Paper
Towards a Deep-Learning based Heuristic for Optimal Variable Ordering in Binary Decision Diagrams to Support Fault Tree Analysis
10:20–10:40AM PDT
Arjun Earthperson (NCSU), Egemen M. Aras (NCSU), Asmaa A. Farag (NCSU), Mihai A. Diaconeasa (NCSU)
Quantifying Safety System Unavailability Margins via Inverse Estimation of Event Sequence Frequencies
10:40–11:00AM PDT
Arjun Earthperson (NCSU), Priyanka M. Pandit (NCSU), Mihai A. Diaconeasa (NCSU)
Markov Decision Processes for Intelligent, Risk-Informed Asset-Management Decision-Making
11:00–11:20AM PDT
David Grabaskas (ANL), Yunfei Zhao (Ohio State), Carol Smidts (Ohio State), Vera Moiseytseva (ANL), Roberto Ponciroli (ANL), Pascal Brocheny (Framatome)
Data Updating Model Development with Bayesian Inference for Data Analysis for Probabilistic Risk Assessment Application
11:20–11:40AM PDT
Joomyung Lee (NCSU), Rawan Mustafa (NCSU), Mostafa Hamza (NCSU), Olivier Retourne (X-energy), Huafei Liao (X-energy), Glen Lawson (X-energy), Mihai A. Diaconeasa (NCSU)
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