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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.
A. L. Wight, K. F. Hansen, D. R. Ferguson
Nuclear Science and Engineering | Volume 44 | Number 2 | May 1971 | Pages 239-251
Technical Paper | doi.org/10.13182/NSE71-A19671
Articles are hosted by Taylor and Francis Online.
An approximate solution-of the multigroup neutron diffusion kinetics equations with delayed neutrons in two-dimensional geometry can be obtained by matrix splitting methods based on an Alternating-Direction Implicit (ADI) scheme. The method is shown to be consistent and numerically stable. An exponential transformation of the semi-discrete equations reduces the truncation error so that the method becomes usable for practical computations. The results of numerical experiments are presented to illustrate the accuracy and stability of the method. These results indicate that another splitting method based on an Alternating-Direction Explicit scheme is slightly superior.