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.
Explore membership for yourself or for your organization.
Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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
Jul 2025
Jan 2025
Latest Journal Issues
Nuclear Science and Engineering
August 2025
Nuclear Technology
Fusion Science and Technology
Latest News
ANS joins others in seeking to discuss SNF/HLW impasse
The American Nuclear Society joined seven other organizations to send a letter to Energy Secretary Christopher Wright on July 8, asking to meet with him to discuss “the restoration of a highly functioning program to meet DOE’s legal responsibility to manage and dispose of the nation’s commercial and legacy defense spent nuclear fuel (SNF) and high-level radioactive waste (HLW).”
Kiyoshi Yoshikawa, Shinji Kouda, Yasushi Yamamoto, Kouichi Maeda
Fusion Science and Technology | Volume 14 | Number 2 | September 1988 | Pages 264-283
Technical Paper | Energy Conversion | doi.org/10.13182/FST88-A20260
Articles are hosted by Taylor and Francis Online.
A two-dimensional code for an axisymmetrical plasma direct energy converter (PDC), the Kyoto University Numerical Analysis for Ion Trajectories in Axisymmetrical System (KUNAITAS), has been developed with the aid of the two-dimensional code Kyoto University Advanced DART (KUAD), including evaluation of atomic processes. The two-dimensional code was applied successfully to a PDC design for the Fusion Engineering Facility based on mirror confinement, with space-charge effects taken into account, yielding ∼60% recovery efficiency at pressures of 10−4 Pa. Calculations are made for particle trajectories of incident ions, slow ions and electrons, and secondary electrons in the presence of expanding magnetic fields and self-consistent electric fields with particle trajectories.