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Division Spotlight
Reactor Physics
The division's objectives are to promote the advancement of knowledge and understanding of the fundamental physical phenomena characterizing nuclear reactors and other nuclear systems. The division encourages research and disseminates information through meetings and publications. Areas of technical interest include nuclear data, particle interactions and transport, reactor and nuclear systems analysis, methods, design, validation and operating experience and standards. The Wigner Award heads the awards program.
Meeting Spotlight
ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
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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Mar 2025
Jan 2025
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Nuclear Science and Engineering
May 2025
Nuclear Technology
April 2025
Fusion Science and Technology
Latest News
El Salvador: Looking to nuclear
In 2022, El Salvador’s leadership decided to expand its modest, mostly hydro- and geothermal-based electricity system, which is supported by expensive imported natural gas and diesel generation. They chose to use advanced nuclear reactors, preferably fueled by thorium-based fuels, to power their civilian efforts. The choice of thorium was made to inform the world that the reactor program was for civilian purposes only, and so they chose a fuel that was plentiful, easy to source and work with, and not a proliferation risk.
Technical Session|Sponsored by RPD|Cosponsored by ANSTD
Monday, June 12, 2023|3:15–5:00PM EDT|Kentucky
Session Chair:
Eva Davidson (ORNL)
Alternate Chair:
Pavel V. Tsvetkov
Session Organizer:
Massimiliano Fratoni (UC Berkeley)
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Mobile-SMR-13 LEU+ Once-Through Fuel Cycle Performance Evaluation
3:15–3:35PM EDT
Gray Chang (JFoster & Assoc.), John Bess (JFoster & Assoc.), Mie Hiruta (JFoster & Assoc.), Julie Foster (JFoster & Assoc.)
Paper
Presentation Slides (Visible to Attendees) — Presentation
Detailed Reflector and Drum Modeling of the SNAP8 Criticality Configuration Experiments Using Serpent with ENDF/B-VII.1 and ENDF/B-VIII.0 Libraries
3:35–3:55PM EDT
Samuel Garcia (Univ. Wisconsin, Madison), Isaac E. Naupa Aguirre (Georgia Tech), Anthony Boyd (Univ. Wisconsin, Madison), Oliver Paleen (Univ. Wisconsin, Madison), Dan Kotlyar (Georgia Tech), Ben Lindley (Univ. Wisconsin, Madison)
Conceptual Design of a Portable Nuclear Microreactor
3:55–4:15PM EDT
B.R. Betzler (Radiant Nuclear), J. M. May (Radiant Nuclear), A. Garrison (Radiant Nuclear), R. Urberger (Radiant Nuclear), D. Bernauer (Radiant Nuclear)
A Comparative Physics Study of Ultra-Long-Life Lead Cooled Very Small Modular Reactor Cores
4:15–4:35PM EDT
Yu Yeon Cho (Hanyang Univ.), Ser Gi Hong (Hanyang Univ.)
Modeling the Impact of Cermet Microstructure on Nuclear Thermal Propulsion Fuel Loss
4:35–4:55PM EDT
Vishal Yadav (Univ. Florida), Michael R. Tonks (Univ. Florida), Jhonathan Rosales (NASA Marshall Space Flight Center)
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