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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.
A. I. Kislyakov, A. J. H. Donné, L. I. Krupnik, S. S. Medley, M. P. Petrov
Fusion Science and Technology | Volume 53 | Number 2 | February 2008 | Pages 577-603
Technical Paper | Plasma Diagnostics for Magnetic Fusion Research | doi.org/10.13182/FST08-A1680
Articles are hosted by Taylor and Francis Online.
Three techniques for particle diagnostics of magnetically confined fusion plasmas are reviewed: charge exchange neutral particle analysis, Rutherford scattering, and heavy ion beam probes. The physical basis and instrumentation for each technique are described. Typical examples obtained by these diagnostics are presented. Charge exchange analysis is used for ion temperature measurements in small- and medium-sized plasma devices and for the study of the ion energy distribution function, especially in the suprathermal energy range. It also provides an ion isotope composition determination that is a high-priority task for ITER. Rutherford scattering enables local measurements of the ion temperature as well as measurements of the ion collective velocity. The heavy ion beam probe diagnostic gives a unique opportunity to measure locally the electric plasma potential and, by that, the electric field profile in a plasma and its influence on confinement. Other significant options of this diagnostic are the measurements of the local electron density and fluctuations in these quantities. Prospects for the application of the various techniques to ITER are discussed.