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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
Latest News
The 2025 ANS election results are in!
Spring marks the passing of the torch for American Nuclear Society leadership. During this election cycle, ANS members voted for the newest vice president/president-elect, treasurer, and six board of director positions (four U.S., one non-U.S., one student). New professional division leadership was also decided on in this election, which opened February 25 and closed April 15. About 21 percent of eligible members of the Society voted—a similar turnout to last year.
Ryuhei Kumazawa
Fusion Science and Technology | Volume 65 | Number 1 | January 2014 | Pages 43-53
Lecture | doi.org/10.13182/FST13-678
Articles are hosted by Taylor and Francis Online.
Characteristics of waves in plasmas are introduced based on the dispersion relation of the waves. They are interpreted over a wide area of frequencies, i.e., from below the ion cyclotron frequency to above the electron cyclotron frequency and over a wide range of electron densities of order 1010. These characteristics are summarized in a Clemmow-Mullaly-Allis (CMA) diagram, whose abscissa and ordinate are a normalized electron density, i.e., (Πe/ω)2, and a normalized electron cyclotron frequency, i.e., (Ωe/ω)2, respectively. Minority ion cyclotron range of frequency heating is discussed using the dispersion relation.
