ANS is committed to advancing, fostering, and promoting the development and application of nuclear sciences and technologies to benefit society.
Explore the many uses for nuclear science and its impact on energy, the environment, healthcare, food, and more.
Division Spotlight
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.
Meeting Spotlight
2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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!
Latest Magazine Issues
Apr 2024
Jan 2024
Latest Journal Issues
Nuclear Science and Engineering
May 2024
Nuclear Technology
Fusion Science and Technology
Latest News
X-energy receives federal tax credit for TRISO fuel facility
Advanced reactor company X-energy has been awarded $148.5 million in tax credits under the Inflation Reduction Act for construction of its TRISO-X fuel fabrication facility in Oak Ridge, Tenn.
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.