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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. W. Langley, M. P. Billings
Nuclear Technology | Volume 15 | Number 1 | July 1972 | Pages 68-74
Technical Paper | Radioisotope | doi.org/10.13182/NT72-A31163
Articles are hosted by Taylor and Francis Online.
It has been presumed that geometrically faithful man models are required to accurately account for the effect of body self-shielding on space radiation dose to radiation-sensitive organs other than the skin and lens of the eye. It is demonstrated that a simple equivalent sphere model reproduces the results of comprehensive dose analyses that employ a detailed man model, with an accuracy sufficient for dose assessments. A correlation has been established analytically that holds for the full range of observed solar proton spectra and for a range of vehicle shielding worths from 0 to 10 g/cm2 of aluminum. Equivalent sphere model parameters are presented for the blood forming organs, the gastro-intestinal tract, and the testes.
