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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.
R. M. Carroll, O. Sisman
Nuclear Technology | Volume 2 | Number 2 | April 1966 | Pages 142-150
Technical Paper | doi.org/10.13182/NT66-A27495
Articles are hosted by Taylor and Francis Online.
The results of in-pile tests on UO2 specimens of fine-grain and single-crystal structure led to the formation of a defect-trap theory to describe fission-gas release. The theory, which applies only when the UO2 temperature is below the grain growth region (≈1600° C), is described, and confirming experiments are cited. Experimental results are given to support the contention that a knock-out mechanism accounts for the majority of the fission-gas release at UO2 temperatures under 600° C. An oscillating experimental technique developed to evaluate the defect-trap theory is described, and the initial results are interpreted in terms of the theory.