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
2025 ANS Winter Conference & Expo
November 8–12, 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!
Latest Magazine Issues
Nov 2025
Jul 2025
Latest Journal Issues
Nuclear Science and Engineering
December 2025
Nuclear Technology
November 2025
Fusion Science and Technology
Latest News
Nuclear News 40 Under 40—2025
Last year, we proudly launched the inaugural Nuclear News 40 Under 40 list to shine a spotlight on the exceptional young professionals driving the nuclear sector forward as the nuclear community faces a dramatic generational shift. We weren’t sure how a second list would go over, but once again, our members resoundingly answered the call, confirming what we already knew: The nuclear community is bursting with vision, talent, and extraordinary dedication.
Technical Session
Wednesday, May 11, 2022|1:30–3:30PM EDT|Orchid
Session Chair:
Sebastian Corbisiero (IL)
Session Organizer:
Alternate Chair:
Todd Tofil (NASA)
To access paper attachments, you must be logged in and registered for the meeting.
Register NowLog In
Generating Multigroup Macroscopic Cross Sections with MCNP for Griffin Steady-State Neutronics Analysis of the Surface Power Moderated Heat-Pipe Small Reactor
Alexis Maldonado (LANL), Dasari V. Rao (LANL)
Paper
Design Tool Development for Heat Pipe Cooled Space Reactor in KAERI
Sung Nam Lee (KAERI), Sung Hoon Choi (KAERI), Hong-Sik Lim (KAERI), Chan Soo Kim (KAERI)
Multiphysics Suite for Design of Small Reactors
A.J. Fallgren (X-energy), B.T. Rearden (X-energy), John Kennedy (X-energy), Nathan George (X-energy), Dov Rhodes (X-energy), Adam Oler (X-energy), John Pevey (X-energy), Josh Payne (X-energy)
A Deployable 40 kWe Lunar Fission Surface Power Concept
Steven Oleson (NASA Glenn Research Center), Thomas Packard (HX5), Elizabeth Turnbull (NASA Glenn Research Center), Marc Gibson (NASA Glenn Research Center), Dasari Rao (LANL), Christopher Barth (NASA Glenn Research Center), Scott Wilson (NASA Glenn Research Center), Paul Schmitz (Power Computing Solutions), Anthony Colozza (HX5), Brandon Klefman (NASA Glenn Research Center), Lucia Tian (NASA Glenn Research Center), Lee Mason (NASA Glenn Research Center)
Lunar Power Transmission for Fission Surface Power
Christopher Barth (NASA Glenn Research Center), David Pike (NASA Glenn Research Center)
To join the conversation, you must be logged in and registered for the meeting.
