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Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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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.
Veselov A.V., Drozhin V.S., Druzhinin A.A., Izgorodin V.M. Iiyushechkin B.N., Kirillov G.A., Komleva G.V., Korochkin A.M., Medvedev E.F., Nikolaev G.P., Pikulin I.V., Pinegin A.V., Punin V.T., Romaev V.N., Sumatokhin V.L., Tarasova N.N., Tachaev G.V., Cherkesova I.N.
Fusion Science and Technology | Volume 28 | Number 5 | December 1995 | Pages 1838-1843
Technical Paper | Inertial Confinement Fusion Targets | doi.org/10.13182/FST95-A30422
Articles are hosted by Taylor and Francis Online.
The main effort of the ICF target fabrication group is support of the experiments performed on the “ISKRA-4” and “ISKRA-5” laser systems. The main types of targets used in these experiments are direct drive, inverted corona, and indirect drive. A direct drive target is a glass spherical container coated with a metal or polymeric film and filled with a D-T mixture and some diagnostic gas.1,2 The inverted corona target is a spherical shell with holes for introducing laser radiation. The inside surface of the shell is coated with a compound containing heavy hydrogen isotopes.3,4 The indirect drive target is assembled from a spherical shell with holes for introducing laser radiation and a direct drive target placed in the shell center. The inside surface of the shell is coated with high-Z material5 (Fig. 1). For production of direct drive targets, manufacturing techniques have been developed for both hollow glass and polystyrene microspheres. Hollow glass microspheres are fabricated by free-fall of liquid glass drops or dry gel in a 4 meter vertical kiln.6 These methods allow us to manufacture glass microspheres with diameters from 50 µm to 1 mm, wall thicknesses from 0.5 to 10 µm, and aspect ratios (radius/wall) from 20 to 500. The microspheres have a thickness inhomogeneity less than 5% and non-sphericity less than 1%. Polystyrene microspheres are fabricated from polystyrene particles with a blowing agent in a similar vertical kiln. Polystyrene microspheres are fabricated with diameter up to 800 µm and wall thicknesses from 1 to 10 µm.