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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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Latest News
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.
Farno L. Green, A. Somerville
Nuclear Science and Engineering | Volume 7 | Number 4 | April 1960 | Pages 320-322
Technical Paper | doi.org/10.13182/NSE60-A25723
Articles are hosted by Taylor and Francis Online.
A standard NaI (Tl) scintillation crystal is used continuously to count gamma rays from Fe59 which is dispersed in lubricating oil at 270°F. The crystal is mounted in a water-cooled jacket which also serves as a light shield. The crystal and jacket assembly is placed in a well-type sample holder. The system may be used for counting liquids at temperatures much higher than 300°F by increasing the flow of water or by using a refrigerated coolant. Resolution is adequate for counting two gamma rays. The temperature of the electronics cabinet which contains conventional instrumentation is maintained at 105°F by Nichrome heater elements. Less than one per cent drift occurs when the temperature surrounding the cabinet varies from 70–100°F.