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Conference Spotlight
2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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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.
O. K. Tallent, R. P. Wichner, Roy L. Towns
Nuclear Technology | Volume 68 | Number 3 | March 1985 | Pages 336-343
Technical Paper | Nuclear Fuel | doi.org/10.13182/NT85-A33579
Articles are hosted by Taylor and Francis Online.
The transport or diffusion of uranium (as a stand-in for plutonium) was investigated under conditions approximating those of the primary coolant loop in a high-temperature gas-cooled reactor. Profiles were obtained for uranium penetration in H-451 graphite at temperatures ranging from 900 to 1400°C. Profile data for given temperatures were considered in terms of the following expression: where C is the concentration of uranium at time t, for distance x, into the pellet; C0 is a constant representing the uranium concentration at x = 0 for all t, and D is the diffusion coefficient. Diffusion coefficients for uranium initially present as dicarbide at 1000 and 1400°C were found to be defined byFor uranium initially present as dioxide at 900, 1000, and 1400°C, diffusion coefficients are defined bywhere R is the gas constant and T is the temperature in degrees Kelvin.
