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
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!
Latest Magazine Issues
Jul 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
August 2025
Nuclear Technology
Fusion Science and Technology
July 2025
Latest News
Hash Hashemian: Visionary leadership
As Dr. Hashem M. “Hash” Hashemian prepares to step into his term as President of the American Nuclear Society, he is clear that he wants to make the most of this unique moment.
A groundswell in public approval of nuclear is finding a home in growing governmental support that is backed by a tailwind of technological innovation. “Now is a good time to be in nuclear,” Hashemian said, as he explained the criticality of this moment and what he hoped to accomplish as president.
The Consortium for Advanced Simulation of Light Water Reactors Virtual Meeting
Technical Session|Sponsored by Radiation Transport Methods
Thursday, November 19, 2020|12:15–2:00PM EST
Session Chair:
Bill Martin (Univ. of Michigan)
Alternate Chair:
Tara Pandya (ORNL)
Track Organizer:
Scott Palmtag (NCSU)
Staff Producer:
Nicholas Herring (Univ. of Michigan)
To access the session recording, you must be logged in and registered for the meeting.
Register NowLog In
To access paper attachments, you must be logged in and registered for the meeting.
MPACT Diffusion Coefficient Improvement Through Westinghouse Collaboration
Shane G. Stimpson (Oak Ridge National Laboratory), Thomas J. Downar (University of Michigan), Aaron M. Graham (Oak Ridge National Laboratory), Kang S. Kim (Oak Ridge National Laboratory), Andrew Godfrey (Oak Ridge National Laboratory), Benjamin S. Collins (Oak Ridge National Laboratory), Fausto Franceschini (Westinghouse Electric Corporation)
Paper
Subgrid Methods to Address Axial Heterogeneities in MPACT
Thomas J. Downar (University of Michigan), Benjamin S. Collins (Oak Ridge National Laboratory), Shane G. Stimpson (Oak Ridge National Laboratory), Aaron M. Graham (Oak Ridge National Laboratory)
Verification Framework in MPACT
Jipu Wang (University of Michigan), Martin Pilch (MPilchConsulting), Brendan M. Kochunas (University of Michigan), Benjamin S. Collins (Oak Ridge National Laboratory), Thomas J. Downar (University of Michigan), William R. Martin (University of Michigan)
MPACT Validation
Shane Stimpson (Oak Ridge National Lab), Ben S. Collins (Oak Ridge National Lab), Yuxuan Liu (University of Michigan), Brendan M. Kochunas (University of Michigan), Tom Downar (University of Michigan)
To join the conversation, you must be logged in and registered for the meeting.
