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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
What’s in your Dubai chocolate? Nuclear scientists test pistachios for toxins
For the uninitiated, Dubai chocolate is a candy bar filled with pistachio and tahini cream and crispy pastry recently popularized by social media influencers. While it’s easy to dismiss as a viral craze now past its peak, the nutty green confection has spiked global pistachio demand, and growers and processors are ramping up production. That means more pistachios need to be tested for aflatoxins—a byproduct of a common crop mold.
Gerald S. Lellouche
Nuclear Science and Engineering | Volume 12 | Number 4 | April 1962 | Pages 482-489
Technical Paper | doi.org/10.13182/NSE62-A26095
Articles are hosted by Taylor and Francis Online.
The effect of xenon and temperature on reactor dynamics in a free system is extended to include an explicit spatial dependence. The stability boundaries are determined in linear approximation for solid and annular cylindrical systems for several core sizes. Annular stability is found to be the hardest to achieve. It is shown that several terms in the series expansion of the fundamental are necessary to give a good representation of the stability of the first harmonic.
