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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.
Katsuji Ichiguchi, Noriyoshi Nakajima, Benjamin A. Carreras
Fusion Science and Technology | Volume 46 | Number 1 | July 2004 | Pages 34-43
Technical Paper | Stellarators | doi.org/10.13182/FST04-A538
Articles are hosted by Taylor and Francis Online.
The nonlinear behavior of the interchange mode in Large Helical Device (LHD) plasma depends on the overlap of the vortices with different helicity. If the vortices are separated in the radial direction, each mode saturates mildly with generating the local flat regions in the pressure profile. In the case of significant overlap of the vortices, the appearance of large-scale convection results in sudden global reduction of the pressure. The sequence of the saturated pressure profile in the increase of beta can suppress the overlap. Self-organization of the pressure profile to suppress the overlap of the vortices can be the stabilizing mechanism in the LHD plasma.
