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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 18 | Number 1 | April 1973 | Pages 55-62
Technical Note | Chemical Processing | doi.org/10.13182/NT73-A16107
Articles are hosted by Taylor and Francis Online.
Several factors that influence the design and capacity of a fissile metal storage vault are the size and shape of individual storage units, surface density, double batching of storage units, the effects of personnel upon storage array reactivity, and the possibility of water flooding of arrays. Calculations indicate that when the fissile material is elevated 12 in. or more above the concrete floor of the vault, keff is decreased 4 to 5% when 3 in. of water is upon the concrete floor. The effect of personnel reflection upon the reactivity of an array is a strong function of the mass of a fissile unit as well as the shape and orientation of this fissile unit with regard to the reflector. For example, when a heavy flat plate of metal is held edgewise against the reflector, the value of keff is 0.804. When the plate is held flat against the reflector, keff is 1.115. A considerable penalty on storage capacity will occur if controls cannot be developed to preclude the double batching and water flooding.
