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Division Spotlight
Nuclear Nonproliferation Policy
The mission of the Nuclear Nonproliferation Policy Division (NNPD) is to promote the peaceful use of nuclear technology while simultaneously preventing the diversion and misuse of nuclear material and technology through appropriate safeguards and security, and promotion of nuclear nonproliferation policies. To achieve this mission, the objectives of the NNPD are to: Promote policy that discourages the proliferation of nuclear technology and material to inappropriate entities. Provide information to ANS members, the technical community at large, opinion leaders, and decision makers to improve their understanding of nuclear nonproliferation issues. Become a recognized technical resource on nuclear nonproliferation, safeguards, and security issues. Serve as the integration and coordination body for nuclear nonproliferation activities for the ANS. Work cooperatively with other ANS divisions to achieve these objective nonproliferation policies.
Meeting Spotlight
International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering (M&C 2025)
April 27–30, 2025
Denver, CO|The Westin Denver 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
Apr 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
June 2025
Nuclear Technology
Fusion Science and Technology
May 2025
Latest News
Dragonfly, a Pu-fueled drone heading to Titan, gets key NASA approval
Curiosity landed on Mars sporting a radioisotope thermoelectric generator (RTG) in 2012, and a second NASA rover, Perseverance, landed in 2021. Both are still rolling across the red planet in the name of science. Another exploratory craft with a similar plutonium-238–fueled RTG but a very different mission—to fly between multiple test sites on Titan, Saturn’s largest moon—recently got one step closer to deployment.
On April 25, NASA and the Johns Hopkins University Applied Physics Laboratory (APL) announced that the Dragonfly mission to Saturn’s icy moon passed its critical design review. “Passing this mission milestone means that Dragonfly’s mission design, fabrication, integration, and test plans are all approved, and the mission can now turn its attention to the construction of the spacecraft itself,” according to NASA.
Results 51 to 100 of 127
Session
Enabling Thermal Hydraulics Technologies for Digital Twins
Technical Session|Panel
Elia Merzari (Penn State)
Panelists: Lander Ibarra (ANL), Akshay Dave (ANL), Vivek Agarwal (INL), Patrick Dudas (Penn State), Sacit Çetiner (MIT)
2024 ANS Annual Conference
THD
Tuesday, June 18, 2024|10:00–11:45AM PDT
Paper
Advancing SAPHIRE: Transitioning from Legacy to State-of-Art Excellence
Stephen T. Wood (INL), Jordan T. Boyce (INL), Egemen M. Aras (NCSU), Asmaa S. Farag (NCSU), Mihai A. Diaconeasa (NCSU)
Advanced Reactor Safety (ARS)
NISD|Advancements in Risk Analysis Software
Wednesday, June 19, 2024|1:00–2:45PM PDT
Enhancing the SAPHIRE Solve Engine: Initial Progress and Efforts
Egemen M. Aras (NCSU), Stephen T. Wood (INL), Jordan T. Boyce (INL), Asmaa S. Farag (NCSU), Mihai A. Diaconeasa (NCSU)
Introducing OpenPRA's Quantification Engine: Exploring Capabilities, Recognizing Limitations, and Charting the Path to Enhancement
Egemen M. Aras (NCSU), Arjun Earthperson (NCSU), Hasibul H. Rasheeq (NCSU), Asmaa S. Farag (NCSU), Stephen T. Wood (INL), Jordan T. Boyce (INL), Mihai A. Diaconeasa (NCSU)
Digital Risk Analysis in Nuclear Engineering Projects: Designing for Safety, Performance, Reliability, and Security
Shannon L. Eggers (INL), Robert W. Youngblood (INL)
NISD|Safety-Informed Cyber and Physical Security
Monday, June 17, 2024|1:00–2:45PM PDT
Management of Risks Associated with Application of Novel Materials in Novel Operating Environments in Novel Reactor Designs
R. Youngblood (INL), S. Ferrara (INL)
NISD|PRA Tools, Methods, and Validations: I
Tuesday, June 18, 2024|3:15–5:00PM PDT
Modeling Radionuclide Inventories in MSR Off-Gas Systems with Radiochemical Transport Analysis
Shayan Shahbazi (ANL), Samuel Walker (INL), Mauricio Tano (INL), Tingzhou Fei (ANL), Yan Cao (ANL), David Grabaskas (ANL)
NISD|Aerosol Generation and Transport, Decay, and Cleanup and Waste Management Systems
Dynamic Modelling and Optimisation of a Small Modular Reactor for Electricity Production and District Heating in the Helsinki Region
Guido C. Masotti (Politecnico di Milano), David Haubensack (CEA), Jussi-Pekka Ikonen (VTT Technical Research Centre of Finland), Tomi J. Lindroos (VTT Technical Research Centre of Finland), Stefano Lorenzi (Politecnico di Milano), Gabriel L. Pavel (ENEN), Marco E. Ricotti (Politecnico di Milano)
2024 International Congress on Advances in Nuclear Power Plants (ICAPP)
Reactors for Heat and Combined Heat and Power|Reactors for Heat and Combined Heat and Power: I
Prismatic High Temperature Gas-Cooled Reactor Model in Support of Integrated Energy Systems
Logan Williams (INL), J. Michael Doster (NCSU), Daniel Mikkelson (INL)
Reactors for Heat and Combined Heat and Power|Reactors for Heat and Combined Heat and Power: II
Tuesday, June 18, 2024|1:00–2:45PM PDT
Root Cause Correlation Analysis of Software Failures via Orthogonal Defect Classification and Natural Language Processing
Edward Chen (INL), Han Bao (INL), Tate Shorthill (Univ. Pittsburgh)
Plant Safety, Regulations, and Licensing|Plant Safety, Regulations, and Licensing: I
Steam Condensation Scaled Experiment in the Presence of Non-Condensable Gas for Reactor Containment Passive Safety Analysis
Palash K. Bhowmik (INL), Joshua P. Schlegel (Missouri Univ. Science and Technology), Piyush Sabharwall (INL)
Thermal Hydraulics Analysis and Testing|Thermal Hydraulics Analysis and Testing: Verification and Validation
Monday, June 17, 2024|3:15–5:00PM PDT
Modeling and Validation of Heat Pipes with Non-Condensable Gases
M. Tano (INL), P. Sabharwall (INL), K. Sweetland (LANL)
Sensitivity Analyses of Natural Convection in the AP1000 Passive Containment Cooling System Following LBLOCA Using CFD
Hossam H. Abdellatif (Univ. Idaho), David Arcilesi (Univ. Idaho), Palash K. Bhowmik (INL), Piyush Sabharwall (INL)
Thermal Hydraulics Analysis and Testing|Thermal Hydraulics Analysis and Testing: I
Code Benchmark of Pressurized Conduction Cooldown Transient in the High Temperature Test Facility
Thanh Hua (ANL), Robert Kile (INL), Sung Nam Lee (KAERI), Ling Zou (ANL), Aaron Epiney (INL)
Thermal Hydraulics Analysis and Testing|Thermal Hydraulics Analysis and Testing: II
Uncertainty Quantification for Pebble Bed Reactor Fuels Burnup Credit
Jonathan Wing (Univ. Tennessee, Knoxville), G. Ivan Maldonado (Univ. Tennessee, Knoxville), Gordon M. Petersen (INL), Robert A. Joseph (INL)
FCWMD|Fuel Cycle Considerations of Advanced Reactors
Quantifying Investment Risk: Analysis of the Purchase Decision of a Nuclear Power Plant
Ryan Spangler (INL), Jason Hansen (INL), Erna Gevondyan (ANL), T.K. Kim (ANL)
OPD|Nuclear Energy Markets, Financing, Economics, and Policy
Modeling for a Digital Twin-Based Remote Operation System Framework
Kaeley Stevens (INL), Joseph Oncken (INL), Izabela Gutowska (Oregon State)
HFICD|Digital Twins and Their Applications
Benchmarking of Different Inverse Point Kinetics Implementations for an Autocorrected Reactimeter Algorithm
Paul A. Ferney (INL), Mark D. DeHart (INL)
HFICD|Online Monitoring, Diagnostics, and Prognostics
Wednesday, June 19, 2024|8:00–9:45AM PDT
Approach for Inferring Full-Scope Human Reliability Data Based on Simplified Simulator Data
Jooyoung Park (INL), Taewon Yang (Chosun Univ.), Ronald Boring (INL), Jonghyun Kim (Chosun Univ.)
Mechanistic Fuel Performance Modeling of Uranium Nitride
Jason Rizk (LANL), Michael Cooper (LANL), Pierre-Clement Simon (INL), Anton Schneider (LANL), Anders David Andersson (LANL), Stephen Novascone (INL), Christopher Matthews (LANL)
MSTD|Nuclear Fuels: III
Perspectives to Promote the Regulatory Acceptance of Combined Neutron, Ion, and Modeled Irradiation Data for Material Degradation in Nuclear Reactors
Stephen Taller (ORNL), Andrea Jokisaari (INL), Yiren Chen (ANL), Wei-Ying Chen (ANL), Rongjie Song (INL)
MSTD|Accelerated Testing, Qualification, and Regulatory Acceptance of Fuels and Materials
Pre-Transient Characterization of Historic EBR-II Pins for Transient Testing
Allison Probert (Univ. Florida), Jason Schulthess (INL), Luca Capriotti (INL), Assel Aitkaliyeva (Univ. Florida)
MSTD|Accelerating Fuels and Materials Research: I
Advances in Metallic Fuel Database Development and Data Qualification
Kun Mo (ANL), Aaron Oaks (ANL), Yinbin Miao (ANL), Dandan Zhang (ANL), Jason L. Schulthess (INL), Douglas L. Porter (INL), Abdellatif Yacout (ANL)
MSTD|Fuels and Materials for Fast Reactors
Diffusion of Fission Product Lanthanides in HCP Zirconium via Vacancy-Mediated Transport
Shehab Shousha (NCSU), Benjamin Beeler (NCSU), Larry Aagesen (INL), Boone Beausoleil (INL), Maria Okuniewski (Purdue Univ.)
MSTD|Accelerating Fuels and Materials Research: III
Numerical Evaluation of Effective Thermal Conductivity of PCM with Metal Foam Incorporating Buoyancy Effects for Thermal Energy Storage
Janghun Han (Hanyang Univ.), Junsoo Yoo (INL), Sunming Qin (INL), Minseop Song (Hanyang Univ.)
THD|Computational Thermal Hydraulics
Development and Application of SSC-level Reliability / Availability Targets in Risk Management
Dennis W. Henneke, Robert W. Youngblood
Panelists: Nathan DeKett (GE), Joon-Eon YANG (KAERI), Todd Anselmi (INL), David Blanchard (AREI)
NISD
Wednesday, June 19, 2024|3:15–5:00PM PDT
Reactors for Heat and Combined Heat and Power: I
Technical Session
Hitesh Bindra (Purdue), Iza Lantgios (INL), Aaron S. Epiney (INL)
Reactors for Heat and Combined Heat and Power
Thermal Hydraulics Analysis and Testing: Verification and Validation
Caleb S. Brooks (Univ. Illinois, Urbana-Champaign), Hiroyuki Yoshida (Japan Atomic Energy Agency), Palash K. Bhowmik (INL), Mauricio E. Tano (INL), Rui Hu (ANL)
Thermal Hydraulics Analysis and Testing
Remote Operation of Advanced Reactors: What Actions are Needed Today to Prepare for Tomorrow?
Joseph Oncken, Vivek Agarwal
Panelists: Joseph Oncken (INL), Jesse Seymour (U.S. Nuclear Regulatory Commission), Stylianos Chatzidakis (Purdue Univ.), Clara Alivisatos (Kairos Power)
HFICD
Opportunities and Technical Characteristics of Power Uprates for Existing Fleet
Koroush Shirvan, Aladar Csontos
Panelists: Aladar Csontos (Nuclear Energy Institute), Svetlana Lawrence (INL), Christopher M. Wiegand (EPRI), Koroush Shirvan (MIT)
OPD
The Role of Civil Engineering in the Accelerated and Scaled Deployment of Nuclear
Chandrakanth Bolisetti (Senior Scientist, Idaho National Laboratory), Andrew Whittaker (SUNY Distinguished Professor, University at Buffalo)
Panelists: Chandu Bolisetti (INL), Benjamin D. Kosbab (Senior Principal, Simpson Gumpertz & Heger), Enrique Velez Lopez (Co-founder, Boston Atomics), Huy Tran (Principal Lead Engineer, TerraPower)
Wednesday, June 19, 2024|10:00–11:45AM PDT
Development and Demonstration of a Prototype Molten Salt Sampling System
Megan Harkema (Vanderbilt Univ.), Steven Krahn (Vanderbilt Univ.), Paul Marotta (Vanderbilt Univ.), Adam Burak (Univ. Michigan), Xiaodong Sun (Univ. Michigan), Piyush Sabharwall (INL)
NISD|Safety-Informed Design
Implementation of the Sourdough Fuel Cycle and Waste Management Strategy in the EIRENE Novel Molten Salt Reactor Design
C. Erika Moss (Univ. Tennessee, Knoxville), Ondrej Chvala (Univ. Tennessee, Knoxville), Donny Hartanto (ORNL), John P. Carter (INL)
Generic Sodium-Potassium-Cooled Thermal Microreactor Reference Design with Sizing-Burnup Tradeoff Study
Samuel Garcia (Univ. Wisconsin, Madison), Samuel E. Bays (INL), Ben Lindley (Univ. Wisconsin, Madison)
Nuclear Power Plants|Nuclear Power Plants: Other Advanced Reactors
Activation Analysis of Soils and Materials Under Small Transportable Reactors with Severe Shielding Weight Restrictions
R. Demuth (Univ. South Carolina), A. Horwood (Univ. South Carolina), M. Phipps (Univ. South Carolina), S. Bays (INL), T. Knight (Univ. South Carolina)
Portable and Propulsion Reactors|Portable and Propulsion Reactors
SCALE Methodology for Spatially Based Activation of Materials for Transportable Microreactor Applications
Robert Demuth (Univ. South Carolina), Aaron Horwood (Univ. South Carolina), Matt Phipps (Univ. South Carolina), Samuel Bays (INL), Travis Knight (Univ. South Carolina)
Build-To-Replace Strategy to Reduce the O&M Costs of Advanced Reactors
D. Mandelli (INL), A. Sowder (EPRI)
Operation, Performance and Reliability Management|Operation, Performance, and Reliability Management: I
Physics Constrained Reinforcement Learning for Improved Control of Transient Maneuvers in Nuclear Power Plants
Aidan Rigby (Univ. Wisconsin, Madison), Michael J. Wagner (Univ. Wisconsin, Madison), Daniel Mikkelson (INL), Ben Lindley (Univ. Wisconsin, Madison)
Operation, Performance and Reliability Management|Operation, Performance, and Reliability Management: II
Using Generative AI to Implement the Discrepancy Checker for a Nearly Autonomous Management and Control System for Advanced Reactors
Paridhi Athe (NCSU), Linyu Lin (INL), Nam Dinh (NCSU)
Inverse Problem Approach for Estimating Operating Conditions and Uncertainty Quantification in Actual Forced Convection System
Haeseong Kim (MIT), Sacit Cetiner (INL), Matteo Bucci (MIT)
Thermal Hydraulics Analysis and Testing|Thermal Hydraulics Analysis and Testing: III
Feasibility of Remote Monitoring of Microreactors Using Satellites and Leveraging Transfer Learning and Pre-trained Models
Hui-Yu Hsieh (TAMU), Thabit Abuqudaira (TAMU), Pavel Tsvetkov (TAMU), Piyush Sabharwall (INL)
OPD|Operations and Power: General and Lightning Talks
Diagnostics Using Nuclear Plant Cyber Attack Analysis Toolkit
Japan K. Patel (Univ. Michigan), Athi Varuttamaseni (Brookhaven), Robert W. Youngblood III (INL), John C. Lee (Univ. Michigan)
HFICD|Cybersecurity in Wireless Technologies, Digital I&C, Digital Twins, and Human Factors: II
Pilot Business Case Analysis for Digital Infrastructure Modernization Deployment
Paul J. Hunton (INL), Sean Lawrie (Lumerra Corp.)
Fuels and Materials Irradiation Testing Needs, Recent Progress, and Future Opportunities
Christian M. Petrie (ORNL), Richard H. Howard (ORNL), David Carpenter (MIT), Nicolas Woolstenhulme (INL)
The Challenge of Innovation in Nuclear Fuel Development and Qualification
Daniel Wachs (INL)
Irradiation and Corrosion Testing of Laser Powder Bed Fusion-Manufactured Materials in the Advanced Manufacturing and Materials Technologies Program
Andrea M. Jokisaari (INL)
MSTD|Accelerating Structural Material Development
Effect of Al Addition on the Microstructure and Radiation Response of Equiatomic CrFeMnNi and CrFeCuNi Alloys
Saikumaran Ayyappan (NCSU), Kara Krogh (NCSU), Geoffrey Beausoleil (INL), Djamel Kaoumi (NCSU)
MSTD|Environmental Degradation of Materials: II
Hot Hydrogen Testing of Uranium Nitride Cermet for Nuclear Thermal Propulsion
Benjamin Larson (Brigham Young Univ.), Jhonathan Rosales (NASA Marshall Space Flight Center), Brian Taylor (NASA Marshall Space Flight Center), Jason Reynolds (NASA Marshall Space Flight Center), Nathan Jerred (INL), Jamelle Williams (NASA Marshall Space Flight Center), Arne Croell (Univ. Alabama, Huntsville), Martin Volz (NASA Marshall Space Flight Center)
MSTD|Anomalous Heat and Isotopes in Low-Energy Nuclear Reaction Research and General
Parametric Study of the CHF Occurrence During RIAs for High Burnup Fuels.
Luiz C. Aldeia Machado (Penn State), Elia Merzari (Penn State), Lise Charlot (INL)
Exploring the Effect of the Number of Groups of Delayed Neutron Precursors in Reactor Dynamics Simulations of Molten Salt Reactors
Thabit Abuqudaira (TAMU), Pavel Tsvetkov (TAMU), Piyush Sabharwall (INL)
RPD|Reactor Physics of Advanced Reactors II
