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Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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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.
Geza L. Gyorey
Nuclear Science and Engineering | Volume 13 | Number 4 | August 1962 | Pages 338-344
Technical Paper | doi.org/10.13182/NSE62-A26175
Articles are hosted by Taylor and Francis Online.
This paper deals with the space and time dependent reactor stability problem of neutron flux shape variations due to xenon-135. The effect of modal interaction on stability is investigated for a simple reactor model when the characteristic functions of the wave equation are used in a modal expansion. It is shown that modal interaction may contribute to or detract from stability depending on the circumstances, and that in the case of a very large reactor, stability can be seriously overestimated if modal interaction is neglected.
