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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.
Lev F. Belovodskii, Viktor K. Gaevoy, Aleksei V. Golubev
Fusion Science and Technology | Volume 28 | Number 3 | October 1995 | Pages 470-478
Plenary Session | Proceedings of the Fifth Topical Meeting on Tritium Technology in Fission, Fusion, and Isotopic Applications Belgirate, Italy May 28-June 3, 1995 | doi.org/10.13182/FST95-A30448
Articles are hosted by Taylor and Francis Online.
Physical and chemical properties of tritium (T) and its oxides (T2O, DTO, HTO) were experimentally researched; hence, the following was identified: T to T2O conversion mechanisms due to radiation oxidation and isotope exchange in the T concentration range from 10E-8 to 600 Ci/1 in gaseous media of technological equipment (air, argon, hydrogen and their mixtures); diffusion, solubility, sorption and desorption constants of T and T2O in interaction process with structural materials of technological equipment (metals, polymers); properties of T oxidation catalysts (Pt, Pd, Ni, CuO, PdO) for various gas mixtures; properties of moisture adsorbents: synthetic molecular sieve, alumogel and silica gel at different T2O specific activity; mechanisms of waste formation: gaseous, liquid, solid - when T is operated on. Based on the accomplished research the following was developed: technical requirements to technological equipment and equipment units: boxes, containers, receivers, appliances; methods and devices to extract T and T2O from gases: absorbing elements, filters, gas cleaners; facilities for safe T storage in T2O adsorbed on sieve NaA with helium-3 extraction; technologies and devices to extract T and T2O from solid wastes as well as for liquid waste solidification. The developments implemented in the T items production have reduced personnel exposure doses by∼ 50 times and T-releases to the environment by∼200 times.
