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
International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering (M&C 2025)
April 27–30, 2025
Denver, CO|The Westin Denver 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!
Latest Magazine Issues
Apr 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
June 2025
Nuclear Technology
May 2025
Fusion Science and Technology
Latest News
The 2025 ANS election results are in!
Spring marks the passing of the torch for American Nuclear Society leadership. During this election cycle, ANS members voted for the newest vice president/president-elect, treasurer, and six board of director positions (four U.S., one non-U.S., one student). New professional division leadership was also decided on in this election, which opened February 25 and closed April 15. About 21 percent of eligible members of the Society voted—a similar turnout to last year.
Technical Session
Tuesday, May 9, 2023|10:30AM–12:10PM MDT|Boise Room
Session Chair:
Andrew L. Presby
Session Organizer:
Alternate Chair:
Michael G. Houts
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Reactor Core Geometry Optimization with Application for Centrifugal Nuclear Thermal Rockets
10:30–10:50AM MDT
Mitchell Schroll (Univ. Alabama, Hunstville), Robert Frederick (Univ. Alabama, Hunstville), L. Dale Thomas (Univ. Alabama, Hunstville)
Paper
Modelling Nuclear Thermal Propulsion Reactor Expander Cycle Startup Transients
10:50–11:10AM MDT
Lise Charlot (INL), Sebastian Schunert (INL), Vincent Labouré (INL), Mark DeHart (INL)
Regulatory Approach for Nuclear Thermal Propulsion Reactor Systems
11:10–11:30AM MDT
Alexander Pingel (Analytical Mechanics Assoc.), Alexander Foutch (Analytical Mechanics Assoc.), James Werner (Analytical Mechanics Assoc.), Lindsey Holmes (Analytical Mechanics Assoc.)
Developing of Three-Dimensional Bubble Dynamics Model for Centrifugal Nuclear Thermal Propulsion
11:30–11:50AM MDT
Pongkrit Darakorn Na Ayuthya (Univ. Alabama, Huntsville), Jason Cassibry (Univ. Alabama, Hunstville)
Effects of Heat Transfer Coefficient Variation on Nuclear Thermal Propulsion Engine Performance
11:50AM–12:10PM MDT
Daria Nikitaeva (Analytical Mechanics Assoc.), Corey D. Smith (Analytical Mechanics Assoc.), Matthew Duchek (Analytical Mechanics Assoc.)
Attachment — Presentation
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