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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
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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.
P. E. Moroz, D. B. Batchelor, B. A. Carreras, S. P. Hirshman, D. K. Lee, V. E. Lynch, D. A. Spong, J. S. Tolliver, A. S. Ware, J. C. Whitson
Fusion Science and Technology | Volume 30 | Number 3 | December 1996 | Pages 1347-1354
Innovative Approaches to Fusion Energy | doi.org/10.13182/FST96-A11963136
Articles are hosted by Taylor and Francis Online.
Novel concepts of an ultra-low-aspect-ratio stellarator system, called a Spherical Stellarator (SS), or a stellarator-tokamak hybrid system, called SMARTH (Small Aspect Ratio Toroidal Hybrid) are discussed for high-β regimes of operation. Self-consistent analysis of the three-dimensional MHD equilibria with inductively driven plasma current or bootstrap current is presented. It is stressed that the bootstrap current in SS can be large and is flowing in such a direction that the rotational transform produced enhances the vacuum rotational transform. This feature increases the equilibrium β-limit. The high-β equilibria in SS and SMARTH (β(0) > 30%, β ⋍ 8-9%) are demonstrated, correspondingly, with the bootstrap current and the ohmic current. Possible experiments and scalings, including those for reactor parameters, are outlined.
