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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.
J. F. Lagedrost, D. F. Askey, V. W. Storhok, J. E. Gates
Nuclear Technology | Volume 4 | Number 1 | January 1968 | Pages 54-61
Technical Paper and Note | doi.org/10.13182/NT68-A26353
Articles are hosted by Taylor and Francis Online.
The thermal conductivity of PuO2 as determined by thermal diffusivity measurements is presented for the temperature range 250 to ≈1200°C. Specimens of PuO2 with confirmed stoichiometry were fabricated by hot isostatic pressing of powder to densities of 96.5 and 81.9% of theoretical. The thermal diffusivity of four specimens, two of each density, was measured by the heat pulse technique using a laser as the heat source. The data indicated that the thermal conductivity of PuO2 is lower than that of UO2, and decreases with increasing temperature from 250 to 1000°C in an approximate 1/T relation. Values range from 0.06 W/(cm deg C) at 300°C to 0.025 W/(cm deg C) at 1200°C. An apparent reduction of the PuO2 was observed at temperatures above 1200°C.
