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
Nuclear Nonproliferation Policy
The mission of the Nuclear Nonproliferation Policy Division (NNPD) is to promote the peaceful use of nuclear technology while simultaneously preventing the diversion and misuse of nuclear material and technology through appropriate safeguards and security, and promotion of nuclear nonproliferation policies. To achieve this mission, the objectives of the NNPD are to: Promote policy that discourages the proliferation of nuclear technology and material to inappropriate entities. Provide information to ANS members, the technical community at large, opinion leaders, and decision makers to improve their understanding of nuclear nonproliferation issues. Become a recognized technical resource on nuclear nonproliferation, safeguards, and security issues. Serve as the integration and coordination body for nuclear nonproliferation activities for the ANS. Work cooperatively with other ANS divisions to achieve these objective nonproliferation policies.
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!
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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|Thermal Hydraulics
Friday, April 5, 2024|10:15–11:35AM EDT|Reber Room 135
Session Chair:
David Reger (Penn State University)
Alternate Chair:
Carolina da Silva Bourdot Dutra (Penn State University)
Session Organizer:
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LES at Low Richardson Number to Investigate Thermal Stratification in SFRs Upper Plenums
10:15–10:35AM EDT
Theodore M. Chu (Virginia Commonwealth Univ.), Trevor Franklin (Virginia Commonwealth Univ.), Lane B. Carasik (Virginia Commonwealth Univ.)
Paper
Direct Numerical Simulation of a Sodium Fast Reactor Assembly
10:35–10:55AM EDT
Carolina da Silva Bourdot Dutra (Penn State), Elia Merzari (Penn State)
Effects of Gap Width on Flow and Heat Transfer Characteristics for Twisted Tape Inserts Related to Molten Salt Applications
10:55–11:15AM EDT
Sierra Tutwiler (Virginia Commonwealth Univ.), Lane B. Carasik (Virginia Commonwealth Univ.)
Neutronics and Thermal Hydraulics Analysis of the Molten Salt Fast Reactor
11:15–11:35AM EDT
Casey Emler (Penn State), Elia Merzari (Penn State), Saya Lee (Penn State), William Walters (Penn State)
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