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Division Spotlight
Isotopes & Radiation
Members are devoted to applying nuclear science and engineering technologies involving isotopes, radiation applications, and associated equipment in scientific research, development, and industrial processes. Their interests lie primarily in education, industrial uses, biology, medicine, and health physics. Division committees include Analytical Applications of Isotopes and Radiation, Biology and Medicine, Radiation Applications, Radiation Sources and Detection, and Thermal Power Sources.
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|Methods
Monday, April 22, 2024|3:30–5:15PM PDT|Continental Ballroom 2
Session Chair:
Rodolfo Ferrer (Studsvik Scandpower)
Alternate Chair:
Sandra Dulla (Politecnico di Torino)
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Response Matrix Benchmark for the 1D Transport Equation with Matrix Scaling
3:30–3:50PM PDT
B.D. Ganapol (Univ. Arizona), J.K. Patel (Univ. Michigan)
Paper
Synthetic Perturbation as Flux Initializer for the Method of Characteristics Solver of APOLLO3®
3:50–4:10PM PDT
A. Gammicchia (CEA), S. Santandrea (CEA), A. Brighenti (Framatome)
Surface Characteristics Scheme for Solving the Transport Equation in Extruded and Unstructured 3D Geometries
4:10–4:30PM PDT
Arthur Le Bars (CEA), Simone Santandrea (CEA), Sandra Dulla (Politecnico di Torino)
Linear Source Approximation in the Random Ray Method
4:30–4:50PM PDT
Rufus Neame (Univ. Cambridge), Paul Cosgrove (Univ. Cambridge)
Implementation of the Discontinuous Galerkin Method into FENNECS and Other New Improvements for LWR Analysis
4:50–5:10PM PDT
Romain Henry (GRS), Jeremy Bousquet (GRS), Armin Seubert (GRS)
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