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
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.
Advances in Nuclear Nonproliferation Technology and Policy Conference (ANTPC 2023)
Technical Session
Wednesday, November 15, 2023|10:00–11:45AM EST|Lincoln East
Session Chair:
Steve Skutnik (ORNL)
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Radiochemical Transport Analysis to Identify Potential Safeguards Approaches for MSRs
10:00–10:20AM EST
Shayan Shahbazi (ANL), Scott Richards (ANL), Luke Seifert (Univ. Illinois, Urbana-Champaign), Sean Martinson (ANL), Zachery S. Beauvais (ANL)
Paper
Development and Assessment of Sensors for Solid Phase Monitoring in Molten Salts
10:20–10:40AM EST
Nora A. Shaheen (ANL), Laura E. Maggos (ANL), Jonas E. Siegel (ANL), Nathaniel C. Hoyt (ANL)
Design and Optimization of an Aerosol Optical Cell for Spectroscopy Analysis for Molten Salt Reactor Safeguards
10:40–11:00AM EST
Juan Avila (Florida Int'l Univ.), Ammon Williams (INL), Ruchi Gakhar (INL), Qiufeng Yang (INL)
Chemometric Analysis for On-Line Monitoring of Complex Molten Salt Chemistry
11:00–11:20AM EST
Shirmir D. Branch (PNNL), Heather M. Felmy (PNNL), Adan S. Medina (PNNL), Samuel A. Bryan (PNNL), Amanda M. Lines (PNNL)
Online Molten Salt Reactor Sampling Approach Using Laser and Optical Spectroscopy Techniques in Molten Salt Aerosol
11:20–11:40AM EST
Ammon Williams (INL), Ruchi Gakhar (INL), Qiufeng Yang (INL), Juan Avila (Florida Int'l Univ.), Igor Jovanovic (Univ. Michigan), Milos Burger (Univ. Michigan), Londrea Garrett (Univ. Michigan)
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