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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.
Kazuaki Miyamoto, Kazunori Takahashi
Fusion Science and Technology | Volume 63 | Number 1 | May 2013 | Pages 401-403
doi.org/10.13182/FST13-A16968
Articles are hosted by Taylor and Francis Online.
Two-dimensional periodic plasma structure of a density above 1×1010 cm-3 is produced by a 400 kHz capacitively-coupled discharge, where the discharge is operated at ~10 Pascal argon. A living electrode, which is covered with a periodically hollowed insulator, is powered from a 400 kHz power supply through an impedance matching circuit. The net power is increased up to 450 W in the present experiments. The Langmuir probe diagnosis shows the formation of the spatially periodic modulation of the plasma density, where the densities at the peak and trough in the structure are 1.8×1010 cm-3 and 1×1010 cm-3 for 180 W rf power. The density ratio at the peak and trough positions in the structure is unchanged by the rf power.