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Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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Fusion Science and Technology
July 2025
Latest News
Hash Hashemian: Visionary leadership
As Dr. Hashem M. “Hash” Hashemian prepares to step into his term as President of the American Nuclear Society, he is clear that he wants to make the most of this unique moment.
A groundswell in public approval of nuclear is finding a home in growing governmental support that is backed by a tailwind of technological innovation. “Now is a good time to be in nuclear,” Hashemian said, as he explained the criticality of this moment and what he hoped to accomplish as president.
Dietmar Wagner, Dominik Schmid-Lorch, Jörg Stober, Hendrik Höhnle, Fritz Leuterer, Emanuele Poli, Francesco Monaco, Max Münich, Harald Schütz, ASDEX Upgrade Team
Fusion Science and Technology | Volume 58 | Number 2 | October 2010 | Pages 658-665
Technical Paper | doi.org/10.13182/FST10-A10890
Articles are hosted by Taylor and Francis Online.
The new electron cyclotron resonance heating (ECRH) system at the ASDEX Upgrade tokamak allows for an adjustment of the polarization of the injected ECRH beam during plasma discharges. Three sniffer probes for millimeter wave stray radiation, with broad and polarization insensitive radiation characteristics, have been installed around the torus to monitor nonabsorbed radiation. The influence of varying ECRH-beam polarization on the detected stray radiation is studied. For perpendicular X2 heating the minimum detectable amount of wrong (O2-mode) polarization is found to be 5%. The system also allows full change of polarization from X2 to O2 mode, as it is useful for O2 heating above the X2-mode cutoff. These experiments show a high directivity of the stray radiation due to the toroidally inclined O2-mode injection.