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Conference Spotlight
2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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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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.
J. T. Holmes, C. R. F. Smith, M. M. Osterhout, W. H. Olson
Nuclear Technology | Volume 32 | Number 3 | March 1977 | Pages 304-314
Technical Paper | Material | doi.org/10.13182/NT77-A31754
Articles are hosted by Taylor and Francis Online.
Purity control of the primary and secondary scdium systems at the Experimental Breeder Reactor II (EBR-II) is by essentially continuous cold trapping of small side streams of the total sodium inventories. The EBR-II cold traps are effective for the control of the major chemical impurities, i.e., oxygen and hydrogen (and also tritium). The trapping effectiveness is higher for hydrogen (NaH) than for oxygen (Na2O). The trap on the primary sodium system is more effective than the secondary cold trap because of higher sodium velocities and, probably, longer residence times in the crystallization zone of the primary trap. Radioisotopes such as 131I and 137Cs are not effectively trapped. New control methods may be required for these and other radioisotopes to allow the continued use of direct maintenance procedures for various plant systems.
