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Education, Training & Workforce Development
The Education, Training & Workforce Development Division provides communication among the academic, industrial, and governmental communities through the exchange of views and information on matters related to education, training and workforce development in nuclear and radiological science, engineering, and technology. Industry leaders, education and training professionals, and interested students work together through Society-sponsored meetings and publications, to enrich their professional development, to educate the general public, and to advance nuclear and radiological science and engineering.
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ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
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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
Norway’s Halden reactor takes first step toward decommissioning
The government of Norway has granted the transfer of the Halden research reactor from the Institute for Energy Technology (IFE) to the state agency Norwegian Nuclear Decommissioning (NND). The 25-MWt Halden boiling water reactor operated from 1958 to 2018 and was used in the research of nuclear fuel, reactor internals, plant procedures and monitoring, and human factors.
Yasushi Yamamoto, Kiyoshi Yoshikawa, Hisayuki Toku, Tsuneyuki Haga
Fusion Science and Technology | Volume 17 | Number 4 | July 1990 | Pages 540-554
Technical Paper | Beam Direct Conversion | doi.org/10.13182/FST90-A29190
Articles are hosted by Taylor and Francis Online.
Experiments and simulations were performed for helium ion beams to confirm the general validity of the two-dimensional beam direct energy conversion simulation code KUAD (Kyoto University Advanced Dart) for a wide range of beam parameters and to better understand how the performance of beam direct energy recovery is dependent on beam parameters. The experiments compared currents in the 60- to 140-mA range for 15-keV beam energy and from 130 to 250 mA for 20-keV beam energy. Beam behaviors numerically predicted for different currents and collector potentials were verified. Numerically obtained performance characteristics of the beam direct energy recovery generally show excellent agreement with experimental results within experimental errors. The only discrepancy occurs in the vicinity of the collector potential corresponding to the maximum energy recovery due to possible deviation from the axisymmetry of electrodes and to their small misalignment with respect to the beam axis. Beam perveance rather than beam energy or current is a good parameter for the evaluation of the performance of beam direct energy recovery. Maximum energy recovery efficiencies of 87 ± 4% for 15-keV and 85 ± 4% for 20-keV beams have been achieved.
