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Conference Spotlight
2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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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Latest News
Empowering the next generation: ANS’s newest book focuses on careers in nuclear energy
A new career guide for the nuclear energy industry is now available: The Nuclear Empowered Workforce by Earnestine Johnson. Drawing on more than 30 years of experience across 16 nuclear facilities, Johnson offers a practical, insightful look into some of the many career paths available in commercial nuclear power. To mark the release, Johnson sat down with Nuclear News for a wide-ranging conversation about her career, her motivation for writing the book, and her advice for the next generation of nuclear professionals.
When Johnson began her career at engineering services company Stone & Webster, she entered a field still reeling from the effects of the Three Mile Island incident in 1979, nearly 15 years earlier. Her hiring cohort was the first group of new engineering graduates the company had brought on since TMI, a reflection of the industry-wide pause in nuclear construction. Her first long-term assignment—at the Millstone site in Waterford, Conn., helping resolve design issues stemming from TMI—marked the beginning of a long and varied career that spanned positions across the country.
Technical Session
Monday, October 4, 2021|5:30–7:00PM EDT
Session Chair:
William Wieselquist (ORNL)
Session Organizer:
Todd J. Urbatsch (LANL)
Student Producer:
Thomas Folk (Univ. of Michigan)
This will probably be the best set of lightning talks, ever. We will adhere strictly to the schedule. Everyone's mics will sound great. Speakers will start with their conclusions so you may have everything you need in the first minute! The chat will be overflowing with questions and answers. You may think this sounds stressful, but we will not panic and get overwhelmed. We'll enjoy learning about so many colleagues activities in such a short amount of time (the efficiency!) and revel in the technical diversity that is computational tools for reactor physics applications.
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Benchmarking a Pronghorn Model of the Natural Convection Shutdown Heat Removal Test Facility Against STAR-CCM+
5:30–5:35PM EDT
Sebastian Schunert (INL), Ramiro Freile (Texas A&M Univ.), Logan Harbour (Texas A&M Univ.), Paolo Balestra (INL)
Paper
Reference — Poster
Control Rod History Effect Assessment in a Soluble Boron-Free S-PWR
5:35–5:40PM EDT
P. Devaux (CEA), M. Guyot (CEA), J.-F. Vidal (CEA)
PARAGON2/ANC Analysis of BEAVRS Benchmark Reactor Core
5:40–5:45PM EDT
Mohamed Ouisloumen (Westinghouse Electric Co.), Ho Q. Lam (Westinghouse Electric Co.), Jie P. Lu (Westinghouse Electric Co.)
Reference — poster
Validation of the High-Resolution Code nTRACER Against VVER-1000 Hot Zero Power Measurements
5:45–5:50PM EDT
Marianna Papadionysiou (Paul Scherrer Institut), Seongchan Kim (Seoul Nat'l Univ.), Mathieu Hursin (Paul Scherrer Institut), Alexander Vasiliev (Paul Scherrer Institut), Hakim Ferroukhi (Paul Scherrer Institut), Han Gyu Joo (Seoul Nat'l Univ.), Andreas Pautz (Paul Scherrer Institut)
FRENDY/MG: A Multi-Group Cross Section Generation Module Using ACE Pointwise Cross Sections
5:50–5:55PM EDT
Akio Yamamoto (Nagoya Univ.), Tomohiro Endo (Nagoya Univ.), Basma Fouad (Nagoya Univ.), Go Chiba (Hokkaido Univ.), Kenichi Tada (Japan Atomic Energy Agency)
Reference — Poster presentation - FRENDY/MG
Towards an Efficient and Stable Hybrid Transport-Depletion Sequence Using Reduced-Order Solutions at Substeps
5:55–6:00PM EDT
Andrew Johnson (Georgia Institute of Technology), Dan Kotlyar (Georgia Institute of Technology)
Comparative Study for Load-Follow Operations of the Holos Microreactor
6:00–6:05PM EDT
Sooyoung Choi (Univ. of Michigan), Shai Kinast (Univ. of Michigan), Claudio Filippone (HolosGen), Brendan Kochunas (Univ. of Michigan)
Validation of the GeN-Foam Model of the CROCUS Experimental Reactor
6:05–6:10PM EDT
Tom Mager (Ecole Polytechnique Federale de Lausanne), Carlo Fiorina (Ecole Polytechnique Federale de Lausanne), Mathieu Hursin (Paul Scherrer Institute), Andreas Pautz (Paul Scherrer Institute)
Development of a Syntactic Validation Capability for the Use of MCNP
6:10–6:15PM EDT
Peter J. Kowal (Rensselaer Polytechnic Institute), Jonathan A. Eugenio (Rensselaer Polytechnic Institute), Kurt A. Dominesey (Rensselaer Polytechnic Institute), Wei Ji (Rensselaer Polytechnic Institute), Robert A. Lefebvre (ORNL), Forrest B. Brown (LANL)
Monte Carlo Analysis of Sub-Pin Resolved Power Behaviour in Modern BWR Assembly Designs
6:15–6:20PM EDT
Mathieu Hursin (Paul Scherrer Institut), Alexander Vasiliev (Paul Scherrer Institut), Dimitri Rochman (Paul Scherrer Institut), Abdelhamid Dokhane (Paul Scherrer Institut), Hakim Ferroukhi (Paul Scherrer Institut)
Reference
Operational Characteristics of Low-Enriched Moderated and Unmoderated Space Nuclear Propulsion Reactors
6:20–6:25PM EDT
Matt Krecicki (Georgia Institute of Technology), Dan Kotlyar (Georgia Institute of Technology)
Development of a Griffin Reactor Physics Analysis Code Model for the Versatile Test Reactor
6:25–6:30PM EDT
Nicolas Martin (INL), Ryan Stewart (INL), Zhiwen Xu (INL), Sam Bays (INL)
Numerical Investigation of Solidification of Corium in an Initially Emptied Vertical Pipe
6:30–6:35PM EDT
Alex Pegarkov (Carleton Univ.), Shawn Somers-Neal (Carleton Univ.), Abubaker Alatrash (Carleton Univ.), Edgar Matida (Carleton Univ.), Vinh Tang (Carleton Univ.), Tarik Kaya (Carleton Univ.)
Validation of the Resonant Scattering Treatment in the Different APOLLO3 Self-Shielding Models
6:35–6:40PM EDT
Jean-François Vidal (CEA), Madeleine Gilly (CEA)
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