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.
Division Spotlight
Radiation Protection & Shielding
The Radiation Protection and Shielding Division is developing and promoting radiation protection and shielding aspects of nuclear science and technology — including interaction of nuclear radiation with materials and biological systems, instruments and techniques for the measurement of nuclear radiation fields, and radiation shield design and evaluation.
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
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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|Methods
Monday, April 22, 2024|10:15AM–12:00PM PDT|Continental Ballroom 2
Session Chair:
David Griesheimer (Naval Nuclear Laboratory)
Alternate Chair:
Valeria Raffuzzi (Univ. Cambridge)
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Nemo: A Centralized Model Representation for Reactor Physics Solvers
10:15–10:35AM PDT
P.E. Burke (Naval Nuclear Laboratory), S.J. Douglass (Naval Nuclear Laboratory), D.F. Gill (Naval Nuclear Laboratory), D.P. Griesheimer (Naval Nuclear Laboratory), M.W. Hackemack (Naval Nuclear Laboratory), B.R. Nease (Naval Nuclear Laboratory)
Paper
Assessment of Heuristics for the Automated Generation of 2D Method of Characteristics Mesh
10:35–10:55AM PDT
Kyle Vaughn (Univ. Michigan), Brendan Kochunas (Univ. Michigan)
Presentation Slides (Visible to Attendees)
Geometric Acceleration Structures to Speed Up Cell Searches in OpenMC
10:55–11:15AM PDT
Saad Amin (Mission San Jose High School), Gavin Ridley (MIT), Benoit Forget (MIT)
A Recursive Subdivision Algorithm for Delta-Tracking on Bezier Curve Geometries in SCONE
11:15–11:35AM PDT
Jamie K. Edwards (Univ. Cambridge), Andrew Davis (UKAEA), Eugene Shwageraus (Univ. Cambridge)
A Delta-Tracking Method that Supports Finite-Element Material Properties in Mesh-Based Monte Carlo Codes
11:35–11:55AM PDT
Pablo A. Vaquer (LANL), Michael E. Rising (LANL), Joel A. Kulesza (LANL), Colin A. Weaver (LANL), Colin J. Josey (LANL)
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