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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
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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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.
Hui Zhang, E. E. Lewis
Nuclear Science and Engineering | Volume 152 | Number 1 | January 2006 | Pages 29-36
Technical Paper | doi.org/10.13182/NSE06-A2560
Articles are hosted by Taylor and Francis Online.
The variational nodal method is generalized to include R-Z geometry. Spherical harmonic trial functions in angle are combined with orthonormal polynomials in space to discretize the multigroup equations. The nodal response matrices that result correspond to volumes that are toroids, with rectangular cross sections, except along the centerline where the volumes are cylinders. The R-Z response matrix equations are implemented as modifications to the Argonne National Laboratory code VARIANT, and existing iterative methods are used to obtain numerical solutions. The method is tested in P1, P3, and P5 approximations, and results are presented for both a one-group fixed source and a two-group eigenvalue problem.
