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Division Spotlight
Fusion Energy
This division promotes the development and timely introduction of fusion energy as a sustainable energy source with favorable economic, environmental, and safety attributes. The division cooperates with other organizations on common issues of multidisciplinary fusion science and technology, conducts professional meetings, and disseminates technical information in support of these goals. Members focus on the assessment and resolution of critical developmental issues for practical fusion energy applications.
Meeting Spotlight
2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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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May 2024
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Nuclear Science and Engineering
June 2024
Nuclear Technology
Fusion Science and Technology
Latest News
How robust is HALEU from a nonproliferation perspective?
Shikha Prasad
High-assay low-enriched uranium (HALEU) has emerged as a popular fuel choice for advanced small modular reactors due to its long power production periods before refueling. It is currently being pursued by TerraPower, X-energy, BWX Technologies, Kairos, Oklo, and other reactor companies. HALEU has a uranium-235 enrichment ranging from 5 percent to 20 percent, whereas traditional LWRs use low-enriched uranium fuel enriched up to 5 percent.
HALEU will provide power for longer durations, compared with traditional LWRs. But could it also provide an opportunity for more rapid proliferation, as is speculated in a 2023 National Academy of Sciences report on advanced nuclear reactors (nap.nationalacademies.org/catalog/26630/)?
If a nuclear proliferator conspires to divert fresh nuclear fuel for weapons production when it has not been used in a reactor, the effort required in separative work units (SWUs) to enrich U-235 from 5 percent to 90 percent and that required to enrich from 20 percent to 90 percent are both very small, compared with the effort required to enrich U-235 from its natural abundance to the initial 5 percent.
Technical Session|Sponsored by Evolution of Material Properties
Wednesday, December 13, 2023|8:00–9:40AM CST|Galerie 1
Session Chair:
Mahmut N. Cinbiz (ORNL)
Alternate Chair:
Thak Sang Byun (ORNL)
Track Organizers:
Dong Liu (University of Bristol)
Gary Was (Univ. Michigan)
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Hydrogen Trapping at Microstructural Features in Irradiated Zr Alloys -- A Combined Experimental and Modelling Study
8:00–8:20AM CST
Vidur Tuli (Univ. New South Wales), Lucia Chen (Univ. New South Wales), Benjamin M. Jenkins (Univ. Rouen Normandie), Siyu Huang (Univ. Sydney), Levi Tegg (Univ. Sydney), Jack Haley (UKAEA), Baptiste Gault (Max-Planck-Institut für Eisenforschung), Ingrid McCarroll (Max-Planck-Institut für Eisenforschung), Anne Callow (National Nuclear Laboratory), Michael P. Moody (Univ. Oxford), Michael Preuss (Univ. Manchester), Christopher R.M. Grovenor (Univ. Oxford), Julie M. Cairney (Univ. Sydney), Patrick A. Burr (Univ. New South Wales)
Paper
Effects of Stress on Zirconium Hydride Precipitation and Dissolution in Cold-Worked Stress Relieved Zircaloy-4
8:20–8:40AM CST
J.B. Balog (Penn State), A.A. Waegaert (Penn State), A.T. Motta (Penn State), B.F. Kammenzind (Naval Nuclear Laboratory), J-S. Park (ANL), J.D. Almer (ANL)
Evaluation of Threshold Stress Inducing Hydride Reorientation in Zirconium Cladding Using Multiphase Field Modeling
8:40–9:00AM CST
Wooseob Shin (Kyung Hee Univ.), Kunok Chang (Kyung Hee Univ.)
Impact of Irradiation Damage and Thermomechanical Treatments on the Hydride Diffusion to the Substrate Liner Interface in Zirconium-Based Nuclear Fuel Claddings
9:00–9:20AM CST
Okan Yetik (Paul Scherrer Institute), Liliana Duarte (Paul Scherrer Institute), Pavel Trtik (Paul Scherrer Institute), Malgorzata Makowska (Paul Scherrer Institute), Cloe Schneider (Paul Scherrer Institute), Diego Sanchez (Paul Scherrer Institute), Robert Zubler (Paul Scherrer Institute), Robin Grabherr (Paul Scherrer Institute), Manuel Pouchon (Paul Scherrer Institute), Johannes Bertsch (Paul Scherrer Institute)
Multi-Component Mean-Field Model of Hydride Precipitation in Zircaloys
9:20–9:40AM CST
Connor Cladingboel (Univ. Sheffield), Claire Utton (Univ. Sheffield), Hector Basoalto (Univ. Sheffield), Magnus Anderson (Thermo-Calc Software), Susan Morgan (National Nuclear Laboratory), Anthony Brooks (National Nuclear Laboratory)
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