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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
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
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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.
Technical Session|Sponsored by Fuels and Actinide Materials
Wednesday, December 13, 2023|8:00–9:40AM CST|Galerie 3
Session Chair:
Scarlett Widgeon Paisner (LANL)
Alternate Chair:
Assel Aitkaliyeva (Univ. Florida)
Track Organizers:
Jian Gan (INL)
Michael Tonks (Univ. Florida)
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Operational Limitations of Uranium Mononitride
8:00–8:20AM CST
Z.A. Miller (LANL), M. Fratoni (Univ. California, Berkeley), V.K. Mehta (LANL)
Paper
Presentation Slides (Visible to Attendees)
Comparing and Contrasting Properties, Defects and Fission Products in UN and PuN
8:20–8:40AM CST
R.W. Grimes (Imperial College London), C.O.T. Galvin (LANL), N. Kuganathan (Imperial College London)
Assessment of Uranium Nitride Fuel Safety Limits Using Existing Experimental Data
8:40–9:00AM CST
A. Levinsky (LANL), Z. Miller (LANL), V.K. Mehta (LANL), M. Fratoni (Univ. California, Berkeley)
Exploring the Compatibility of UN in Combination with Zr-4 and SiC as Advanced Fuel-Clad Systems
9:00–9:20AM CST
M. Salata-Barnett (Univ. Manchester), J. Buckley (Univ. Manchester), J. Paul (National Nuclear Laboratory), D. Goddard (National Nuclear Laboratory), T. Abram (Univ. Manchester)
Advancements in Uranium Nitride Fuel Performance Modeling in BISON
9:20–9:40AM CST
Christopher Matthews (LANL), Pierre-Clement Simon (INL), Jason Rizk (LANL), Michael W.D. Cooper (LANL), David Andersson (LANL)
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