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
2026 Annual Conference
May 31–June 3, 2026
Denver, CO|Sheraton Denver
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
Nov 2025
Jul 2025
Latest Journal Issues
Nuclear Science and Engineering
December 2025
Nuclear Technology
Fusion Science and Technology
November 2025
Latest News
Nuclear power’s new rule book: Managing uncertainty in efficiency, safety, and independence
The U.S. nuclear industry is standing at its most volatile regulatory moment yet—one that will shape the trajectory and the safety of the industry for decades to come. Recent judicial, legislative, and executive actions are rewriting the rules governing the licensing and regulation of nuclear power reactors. Although these changes are intended to promote and accelerate the deployment of new nuclear energy technologies, the collision of multiple legal shifts—occurring simultaneously and intersecting with profound technological uncertainties—is overwhelming the Nuclear Regulatory Commission and threatening to destabilize investor and industry expectations.
Technical Session|Reactor Design and Analysis
Monday, April 22, 2024|1:30–3:15PM PDT|Franciscan A
Session Chair:
Ben Lindley
Alternate Chair:
Yves Robert (ORNL)
Session Organizer:
To access paper attachments, you must be logged in and registered for the meeting.
Register NowLog In
Voronoï Mesh for a Thermally Coupled Model of Pebble Bed Reactor
1:30–1:50PM PDT
Ludovic Jantzen (Univ. California, Berkeley), Yves Robert (ORNL), Massimiliano Fratoni (Univ. California, Berkeley)
Paper
Deterministic High-Fidelity Neutronics Simulation of Pebble Bed Reactors with Pebble Tracking Transport
1:50–2:10PM PDT
Liam Carlson (TAMU), Jean Ragusa (TAMU), Paolo Balestra (INL), Yaqi Wang (INL)
Sensitivity of Thermo-Physical Salt Property Changes on Reactor Equilibrium for Salt-Cooled Pebble Bed Reactors
2:10–2:30PM PDT
Ludovic Jantzen (Univ. California, Berkeley), Mauricio E. Tano (INL), Massimiliano Fratoni (Univ. California, Berkeley)
Impact of Cooldown on Pebble Fuel Burnup Prediction Using Machine Learning
2:30–2:50PM PDT
Jason Hou (NCSU), Nick Rollins (NCSU)
Assessment of Worth of Telescopic Control Rods in a Pebble Bed Reactor Model
2:50–3:10PM PDT
Ethan P. Fowler (Univ. Wisconsin, Madison), Gabriel Paramucchio (Univ. Wisconsin, Madison), Adrien Couet (Univ. Wisconsin, Madison), Peter Wilkinson (Unaffiliated), Ben Lindley (Univ. Wisconsin, Madison)
To join the conversation, you must be logged in and registered for the meeting.
