ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
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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
2025 ANS Annual Conference
June 15–18, 2025
Chicago, IL|Chicago Marriott 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!
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Jun 2025
Jan 2025
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Nuclear Science and Engineering
July 2025
Nuclear Technology
June 2025
Fusion Science and Technology
Latest News
Findings of the ANS Executive Order Expert Advisory Group
On May 23, President Donald Trump signed four Executive Orders (EOs) designed to “usher in a nuclear energy renaissance” by building on federal policies and programs and directing efficiencies in the licensing, siting, development, and deployment of advanced reactor technologies.
In order to evaluate the specific proposals contained in the EOs, a group of experts was convened from various sectors of the U.S. nuclear technology enterprise, under the auspices of the ANS External Affairs Committee, to compare the EOs against existing ANS board-approved Position Statements and to offer constructive input for subsequent implementation by the Trump administration.
The group’s findings and feedback, which were delivered by ANS CEO Craig Piercy to ANS President Lisa Marshall and the Board of Directors, are listed below, grouped by individual EO.
To add or remove a session from your itinerary, please check the circle to the left of its title.
1:00–2:00PM EST
Panel
Session Chair: Troy Munro
Session Chairs: Brea Grischkat, Alisha Kasam-Griffith
Session Chair: Dan Carleton
Session Organizers: Chris Breed, Matt Wargon
2:00–2:15PM EST
Session Chairs: Kelsey Aumundson, Patrick Snouffer
2:15–3:15PM EST
Session Chair: Kelsey Aumundson
3:15–5:00PM EST
Session Chairs: Patrick Snouffer, Kelsey Aumundson
5:15–6:15PM EST
Session Chairs: Matt Jasica, Ishita Trivedi
Session Chairs: Patrick Snouffer, Kelsey Amundson
10:00–11:00AM EST
Session Chair: Matt Jasica
Session Chair: Kelsey Amundson
Session Chairs: Julie McCallum, Matt Crozat
Session Chairs: Steve Amundson, Jenae Armstrong, Sarah Laderman, Bridget Carter
11:00–11:05AM EST
11:05AM–12:05PM EST
Session Chair: Julie McCallum|Alternate Chair: Harsh Desai
12:10–1:10PM EST
Session Chair: Will Searight|Alternate Chair: Julie McCallum
Session Chair: Alexandra Siwy
1:25–2:25PM EST
Session Chairs: Jillian Newmyer, Evan Gonzalez
Session Chair: Miriam Kreher
2:25–3:00PM EST
Session Chairs: Kelsey Amundson, Patrick Snouffer
