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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.
James H. Leonard
Nuclear Technology | Volume 6 | Number 3 | March 1969 | Pages 202-208
Technical Paper and Note | doi.org/10.13182/NT69-A28307
Articles are hosted by Taylor and Francis Online.
Chromel/Alumel thermocouples were calibrated at the temperatures of boiling water and melting tin and lead before, during, and after exposure to several cycles of nuclear radiation. A temporary calibration shift of up to 50 µ V was observed at all three calibrating temperatures persisting for at least one hour following cessation of exposure. Comparison with corresponding data from a previous experiment indicates that the relative location of flux and temperature gradients along the thermocouple leads has a major influence on the magnitude of decalibration encountered. The effect is attributed to radiation-produced scattering centers subject to self-annealing processes. For in-pile thermocouple installations, temperature gradients should be restricted to locations outside high-flux regions to minimize potential radiation-dependent, decalibrating effects.