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Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
Standards Program
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. P. Gardner, D. R. Whitaker
Nuclear Technology | Volume 6 | Number 3 | March 1969 | Pages 217-224
Technical Paper and Note | doi.org/10.13182/NT69-A28309
Articles are hosted by Taylor and Francis Online.
A multivariable search method is used to predict the optimum design parameters of a gamma-ray scatter gauge for the measurement of the atmospheric density on Mars. The gauge design parameters are incorporated into mathematical models that can be used to calculate the signal and noise responses of the gauge. Then the optimum performance criterion, which consists of the noise-to-signal squared ratio, is minimized by searching these models over the allowable range of values of the gauge design parameters. The optimum values of gamma-ray energy, source-detector distance, and lower- and upper-discriminator settings found in this manner were 106.4 keV, 225 cm, 67.2 keV, and 83.5 keV.
