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2025 ANS Winter Conference & Expo
November 9–12, 2025
Washington, DC|Washington Hilton
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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.
Masahiro Kinoshita, Yuji Naruse
Fusion Science and Technology | Volume 3 | Number 1 | January 1983 | Pages 112-120
Technical Paper | Tritum System | doi.org/10.13182/FST83-A20821
Articles are hosted by Taylor and Francis Online.
The new multistage-type H2/H2O exchange column using hydrophobic catalysts without the superheating section, which separates the water/vapor scrubbing step and the vapor/hydrogen exchange step, is one of the most attractive processes for hydrogen isotope separation. The present study deals with two exchange columns of this type that seem to be feasible. One is a column processing D2, D2O, HD, HDO, DT, and DTO, which is a unit process for recovery of tritium and removal of protium from the heavy water used as the moderator for nuclear fission reactors. The other is a column processing H2, H2O, HD, HDO, HT, and HTO for a decrease in volume of the tritiated water produced by the operation of tritium facilities. A mathematical simulation procedure is developed for these columns. The rigorous solutions of all the basic equations derived from requirements for conservation of material and phase equilibrium on any stage are effectively found out by means of a successive iteration method. This method uses the tridiagonal matrix algorithm, which is often used in distillation calculations, modifying it to make it applicable to the cases where three phases (liquid water/water vapor/hydrogen gas) must be considered. It is also shown that a specific convergence technique is needed to accelerate the progress of the iterative calculation or to ensure achievement of convergence. Several numerical experiments indicate that this simulation procedure is applicable in a fairly wide range of calculational conditions.
