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Conference Spotlight
2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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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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Empowering the next generation: ANS’s newest book focuses on careers in nuclear energy
A new career guide for the nuclear energy industry is now available: The Nuclear Empowered Workforce by Earnestine Johnson. Drawing on more than 30 years of experience across 16 nuclear facilities, Johnson offers a practical, insightful look into some of the many career paths available in commercial nuclear power. To mark the release, Johnson sat down with Nuclear News for a wide-ranging conversation about her career, her motivation for writing the book, and her advice for the next generation of nuclear professionals.
When Johnson began her career at engineering services company Stone & Webster, she entered a field still reeling from the effects of the Three Mile Island incident in 1979, nearly 15 years earlier. Her hiring cohort was the first group of new engineering graduates the company had brought on since TMI, a reflection of the industry-wide pause in nuclear construction. Her first long-term assignment—at the Millstone site in Waterford, Conn., helping resolve design issues stemming from TMI—marked the beginning of a long and varied career that spanned positions across the country.
S. R. Hatcher, H. K. Rae
Nuclear Science and Engineering | Volume 10 | Number 4 | August 1961 | Pages 316-330
doi.org/10.13182/NSE61-A15373
Articles are hosted by Taylor and Francis Online.
The formation of a colloidal suspension of hydrated aluminum oxide, Gibbsite or α-Al2O3 · 3D2O, in the heavy water of the NRU reactor is described, and compared with turbidity formation in other aluminum-water reactor systems. The observed corrosion rate of aluminum in NRU is consistent with a mass transfer mechanism involving the continuous dissolution of the corrosion product film. Two primary mechanisms for removing the dissolved aluminum from solution are postulated. These are direct crystallization onto deposits in the heat exchangers and direct crystallization onto Gibbsite particles in the water. The former effectively removes alumina from the system while the latter produces turbidity in the water. The rate of appearance of turbidity depends on its rate of formation and its rate of removal by the purification system. Turbidity is removed by filtration and adsorption in the ion-exchange columns and by evaporation. It is desirable to reduce the rate of formation of turbidity by choosing water conditions which minimize the solubility of the corrosion product film, rather than controlling the turbidity level by an adequate purification capacity.
