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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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October 2025
Latest News
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.
Satoshi Fukada, K. Katayama, T. Takeishi, Y. Edao, Y. Kawamura, T. Hayashi, T. Yamanishi
Fusion Science and Technology | Volume 67 | Number 2 | March 2015 | Pages 339-342
Proceedings of TRITIUM 2013 | doi.org/10.13182/FST14-T25
Articles are hosted by Taylor and Francis Online.
What affects tritium migration through porous concrete walls coated with a hydrophobic paint is reviewed from the viewpoint of tritium safety. Being taken into consideration of multi-structural concrete composed of aggregates, sand, water and cement which contents are CaO, SiO2, Al2O3, Fe2O3, MgO, CaSO4 and so on, tritium path is discussed in terms of the HTO diffusivity and adsorption coeffcient on porous walls. Measures to predict rates of tritium leak from laboratory walls to the environment and residual tritium amounts in concrete are estimated based on previous data. Three cases of accidental or chronic tritium release to laboratory air are discussed using the diffusion-adsorption model.
