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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.
Toshihiko Yamanishi, Mikio Enoeda, Kenji Okuno, Takumi Hayashi, Junzo Amano, Yuji Naruse, Robert H. Sherman
Fusion Science and Technology | Volume 20 | Number 4 | December 1991 | Pages 419-424
Technical Paper | Tritium System | doi.org/10.13182/FST91-A29659
Articles are hosted by Taylor and Francis Online.
Cryogenic distillation experiments have been performed with an H-D-T system (1.5 g of tritium) by using two columns with different inner diameters (1 and 2 cm) and different size packings (a 3-mm Dixon ring for the larger column and a 1.5-mm Dixon ring for the smaller column). The height equivalent to a theoretical plate (HETP) values measured during total reflux operation ranged from 4 to 6 cm for both columns and showed no apparent dependence on vapor velocities. The HETP values under total recycle operation, which varied from 3 to 6 cm, gradually decreased with increasing reflux ratios. The feed flow rates also had influenced the HETP. Consequently, the HETP values were correlated by the flow rates of the feed and vapor streams of the column and by the reflux ratio.