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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. J. Altschuler, C. L. Schuske
Nuclear Technology | Volume 17 | Number 2 | February 1973 | Pages 110-126
Technical Paper | Chemical Processing | doi.org/10.13182/NT73-A31238
Articles are hosted by Taylor and Francis Online.
A model has been developed for calculating critically safe storage configurations of cylindrical vessels containing aqueous solutions of UO2F2 (93.2% 235U) and Pu(NO3)4 (95% 239Pu and 5% 240Pu). The method deals with square lattice arrays of cylindrical vessels in air surrounded by concrete walls. This model uses the concepts of surface density and unit surface -to -volume ratio to define safe array parameters. Important factors that influence this storage model are the shape of the individual storage units, storage room height, storage vessel wall thickness, and the effects of body reflection of personnel among the storage vessels. Accidental solution spills in the form of thin slabs of solution on the floor of an array also strongly influence the array parameter, surface density, and, consequently, storage or processing facility capacity.
