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Nuclear Criticality Safety
NCSD provides communication among nuclear criticality safety professionals through the development of standards, the evolution of training methods and materials, the presentation of technical data and procedures, and the creation of specialty publications. In these ways, the division furthers the exchange of technical information on nuclear criticality safety with the ultimate goal of promoting the safe handling of fissionable materials outside reactors.
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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.
D. I. Skovorodin, A. D. Beklemishev
Fusion Science and Technology | Volume 63 | Number 1 | May 2013 | Pages 256-258
doi.org/10.13182/FST13-A16920
Articles are hosted by Taylor and Francis Online.
Numerical kinetic code capable to integrate the dynamical collisional kinetic equation has been developed. The steady state distribution of ions in a mirror cell with flow-through plasmas has been calculated. It has shown that near separatrix there is a phase-space region with unstable inverted gradient of the distribution function. The dispersion relation of the oscillations with ~ b (b is bounce-frequency of ions) has been treated analytically for simplified model with b = const. Interaction of passing ions with the oscillations has been considered. It is found that passing ions could lead to instability as long as their flow velocity is high enough.