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Division Spotlight
Isotopes & Radiation
Members are devoted to applying nuclear science and engineering technologies involving isotopes, radiation applications, and associated equipment in scientific research, development, and industrial processes. Their interests lie primarily in education, industrial uses, biology, medicine, and health physics. Division committees include Analytical Applications of Isotopes and Radiation, Biology and Medicine, Radiation Applications, Radiation Sources and Detection, and Thermal Power Sources.
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
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.
S. Danani, Hitesh Kumar B. Pandya, P. Vasu, M. E. Austin
Fusion Science and Technology | Volume 59 | Number 4 | May 2011 | Pages 651-656
Technical Paper | Sixteenth Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating (EC-16) | doi.org/10.13182/FST11-A11729
Articles are hosted by Taylor and Francis Online.
The electron cyclotron emission measurable from the outboard side of ITER plasmas is estimated. The effects of harmonic overlap and polarization scrambling are reviewed with the aim of assessing the impact of any polarization change that might occur in the collected radiation before the O and X polarizations are separated. It is confirmed that any polarization scrambling occurring during the reflection at the wall would not alter the measured intensities of lower harmonics of either the O or X mode but would affect only the higher harmonics, which are optically thin. For the second-harmonic X mode, the observed intensity in the 300- to 400-GHz range is considerably lower than that of the O polarization. Hence, this frequency range may be particularly vulnerable to any O-to-X polarization change occurring prior to their separation into different transmission channels. It is shown that if the electron temperature Te near the core is to be measured to within 10% accuracy, the above polarization fidelity should also be preserved to within 10% or better. It is suggested that this requirement may have impact on the location of the polarization splitter unit. Further analysis is required to evaluate the error in the calculation of Te profiles from the measured Trad values arising due to uncertainties introduced by any polarization conversion.