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Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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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Building momentum for a stronger ANS
Hash Hashemianpresident@ans.org
The 2025 ANS Annual Conference in Chicago was a powerful springboard to begin my term as president. With over 1,400 attendees, it was one of our most dynamic gatherings in recent memory—full of energy, ideas, and a shared commitment to advancing nuclear science and technology.
As we move forward, my focus is clear: to elevate the role of nuclear in environmental protection, national security, energy diversity, and grid stability. These priorities are not just strategic—they are essential to a cleaner, more resilient future.
The goals I laid out at the conclusion of the Board of Directors meeting in June are simple, but I am sure they will be effective in engaging our community.
One simple change to start is the move away from the term meetings—the American Nuclear Society now uses the term conferences to describe its two yearly flagship gatherings, to more appropriately reflect the more than 1,000 attendees that these events bring together.
Technical Session|Sponsored by RPD
Wednesday, June 18, 2025|10:00–11:45AM CDT|Belmont
Session Chair:
Justin K. Watson
Alternate Chair:
Guillaume Giudicelli
Session Organizer:
Zeyun Wu
To access paper attachments, you must be logged in and registered for the meeting.
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A Higher-Order Transverse Leakage Using 2-D Reconstructed Flux in Nodal Expansion Method
10:00–10:20AM CDT
Junwoo Lee (Korea Advanced Institute of Science and Technology (KAIST)), Yonghee Kim (KAIST)
Paper
Time-Dependent Lattice Homogenization - A General Approach
10:20–10:40AM CDT
Eleodor M. Nichita (Ontario Tech University), Peter Schwanke (Ontario Tech University)
Use of System Dynamics Analysis Tool in Stability Analysis Applications for Flowing-Fuel Reactors
10:40–11:00AM CDT
Michael Parnell (TAMU), Thabit M. Abuqudaira (TAMU), Pavel V. Tsvetkov (TAMU), Piyush Sabharwall (INL)
Presentation Slides (Visible to Attendees)
Comparative Study of On-The-Fly Doppler Broadening Methods Considering Floating-Point Precision
11:00–11:20AM CDT
YuGwon Jo (Korea Atomic Energy Research Institute)
High-Fidelity Deterministic Solver for Pebble Bed Reactors
11:20–11:40AM CDT
Ludovic Jantzen (Univ. California, Berkeley), Massimiliano Fratoni (Univ. California, Berkeley)
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