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Division members promote the advancement of mathematical and computational methods for solving problems arising in all disciplines encompassed by the Society. They place particular emphasis on numerical techniques for efficient computer applications to aid in the dissemination, integration, and proper use of computer codes, including preparation of computational benchmark and development of standards for computing practices, and to encourage the development on new computer codes and broaden their use.
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ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
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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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Latest News
Norway’s Halden reactor takes first step toward decommissioning
The government of Norway has granted the transfer of the Halden research reactor from the Institute for Energy Technology (IFE) to the state agency Norwegian Nuclear Decommissioning (NND). The 25-MWt Halden boiling water reactor operated from 1958 to 2018 and was used in the research of nuclear fuel, reactor internals, plant procedures and monitoring, and human factors.
Kevin Agarwal, Marat Khafizov (Ohio State), Robert Schley, Colby Jensen, David Hurley (INL), Nirmala Kandadai, Harish Subbaraman (Boise State Univ)
Proceedings | Nuclear Plant Instrumentation, Control, and Human-Machine Interface Technolgies (NPIC&HMIT 2019) | Orlando, FL, February 9-14, 2019 | Pages 1028-1036
The objective of this paper is to present preliminary thermal and imaging analysis of infrared thermography applied for crack detection in nuclear fuel. Cracking of nuclear fuel has notable implications on the fuel performance. Cracks provide a pathway for faster fission gas release and buildup of pressure inside the fuel rod. Crack induced relocation of fuel results in pellet cladding mechanical interaction. Lastly the fragmentation of the fuel under severe thermal stress leads to loss of fuel ability to maintain coolable geometry. The aforementioned phenomena impact the life time of the fuel. In-pile detection of the solid material cracking will allow for better understanding of the fuel’s thermo-mechanical behavior and allow validation and development of fuel performance codes. In this report, we summarize the result of the modeling efforts to identify an optimal configuration for infrared thermography for detecting structural evolution of the fuel such cracking. Similar approaches can be further expanded and consider fuel void formation, relocation and pellet claddinh interaction. In this modeling effort, various heater configurations including source and geometry as well as ambient temperature conditions were considered. For sources of heating: internal heat generation by fission or gamma rays and external surface heating by a laser were considered. For the external heater geometry, the condition of uniform and point source surface heater were analyzed. A free space setup implementing IR camera with lock-in detection capability has been identified as a first step for achieving in-pile implementation. The ability to detect cracks in-pile will open up possibilities for further advancements in fuel performance.