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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.
C. L. Angerman
Nuclear Technology | Volume 17 | Number 3 | March 1973 | Pages 261-274
Technical Paper | Radioisotope | doi.org/10.13182/NT73-A31269
Articles are hosted by Taylor and Francis Online.
Satisfactory performance of superalloy capsules at conditions typical of those expected in radioisotopic heat sources was demonstrated. Capsules of Hastelloy X, Hastelloy C, InconeI 600, and Haynes 25 were heated in air at 850 to 1000°C; those containing unirradiated cobalt metal were tested for up to 39 400 h (4.5 yr), and those containing irradiated cobalt metal for up to 19 500 h (2.2 yr). These tests indicated that Hastelloy X is the best encapsulating material for these applications , and Hastelloy C is a good alternative. General agreement of the data on inactive and active capsules indicates that the performance of active capsules is not significantly affected by the radiation field or the buildup of nickel from radioactive decay of the cobalt.
