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Division Spotlight
Mathematics & Computation
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.
Meeting Spotlight
International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering (M&C 2025)
April 27–30, 2025
Denver, CO|The Westin Denver 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!
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Fusion Science and Technology
May 2025
Latest News
Argonne’s METL gears up to test more sodium fast reactor components
Argonne National Laboratory has successfully swapped out an aging cold trap in the sodium test loop called METL (Mechanisms Engineering Test Loop), the Department of Energy announced April 23. The upgrade is the first of its kind in the United States in more than 30 years, according to the DOE, and will help test components and operations for the sodium-cooled fast reactors being developed now.
Dmitriy Vasilkov, Stanislav Grebenshchikov, Irina Grishina, Vyacheslav Ivanov, Nikolay Kharchev, Alexey Meshcheryakov, Vladimir Stepakhin
Fusion Science and Technology | Volume 80 | Number 7 | October 2024 | Pages 826-832
Research Article | doi.org/10.1080/15361055.2023.2201165
Articles are hosted by Taylor and Francis Online.
The results of experiments on high-temperature plasma confinement in a quasi-stationary fusion facility are presented. The results were obtained on the L-2M stellarator in which superposition of magnetic fields with three-dimensional spatial symmetry is created with the help of external windings. The plasma was created and heated using microwave pulses with a record specific power of 2 to 4 MW/m3. Under these conditions, spontaneous transition processes were observed in a plasma stable with respect to large-scale instabilities, leading to an abrupt increase in energy. High thermal loads on the wall of the vacuum chamber are observed in the area of the helical separatrix, which leads to an increase in the penetration of impurities into the plasma. Plasma energy and confinement time correspond to L-2M single-machine scaling at lower powers while at specific powers above 3 MW/m3, confinement time decreases due to the accumulation of impurities. The research results can be used to develop fusion energy facilities or to simulate astrophysical phenomena.