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
Nuclear Criticality Safety
NCSD provides communication among nuclear criticality safety professionals through the development of standards, the evolution of training methods and materials, the presentation of technical data and procedures, and the creation of specialty publications. In these ways, the division furthers the exchange of technical information on nuclear criticality safety with the ultimate goal of promoting the safe handling of fissionable materials outside reactors.
Meeting Spotlight
2025 ANS Annual Conference
June 15–18, 2025
Chicago, IL|Chicago Marriott 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
Jun 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
August 2025
Nuclear Technology
July 2025
Fusion Science and Technology
Latest News
Nuclear fuel cycle reimagined: Powering the next frontiers from nuclear waste
In the fall of 2023, a small Zeno Power team accomplished a major feat: they demonstrated the first strontium-90 heat source in decades—and the first-ever by a commercial company.
Zeno Power worked with Pacific Northwest National Laboratory to fabricate and validate this Z1 heat source design at the lab’s Radiochemical Processing Laboratory. The Z1 demonstration heralded renewed interest in developing radioisotope power system (RPS) technology. In early 2025, the heat source was disassembled, and the Sr-90 was returned to the U.S. Department of Energy for continued use.
Panel and Technical Session|Nonproliferation, Security, and Safeguards
Saturday, April 15, 2023|3:10–4:30PM EDT|Student Union 262A
Session Chair:
Evan Williams (Univ. Tennessee, Knoxville)
Alternate Chair:
Bernadette Brezinski (Univ. Tennessee, Knoxville)
Session Organizer:
Lance M. Drouet (Univ. Tennessee, Knoxville)
This session is sponsored by the ANS Nuclear Non-proliferation Policy Division.
To access paper attachments, you must be logged in and registered for the meeting.
Register NowLog In
Characterization and Evaluation of Scintillating Fiber System Components
3:10–3:30PM EDT
Schuyler J. Tyler (University of New Mexico), Luis A. O. Giraldo (INL)
Paper
Analysis of Proliferation Resistance of Nuclear Fuels for Microreactors
3:30–3:50PM EDT
Hitoshi Cullinan (US Naval Academy), Stuart R. Blair (US Naval Academy)
Graphite Moderated Reactor Heat Removal
3:50–4:10PM EDT
Brant P. DeMoss (US Military Academy), Joseph Garcia (US Military Academy), Daniel Walker (US Military Academy)
Material Diversion Signatures for Molten Salt Reactors
4:10–4:30PM EDT
Branko Kovacevic (Penn State), Andre V. Soares (Penn State), Azaree Lintereur (Penn State), William Walters (Penn State), Amanda J. Johnsen (Penn State), Benjamin Beltzer (ORNL), Michael Dion (ORNL), Louise G. Evans (ORNL)
To join the conversation, you must be logged in and registered for the meeting.
