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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.
Laila A. El-Guebaly
Fusion Science and Technology | Volume 19 | Number 3 | May 1991 | Pages 1475-1480
ITER | Proceedings of the Ninth Topical Meeting on the Technology of Fusion Energy (Oak Brook, Illinois, October 7-11, 1990) | doi.org/10.13182/FST91-A29549
Articles are hosted by Taylor and Francis Online.
The International Thermonuclear Experimental Reactor (ITER) is designed to operate in two phases; physics and technology. The prime function of the shield is to protect the TF magnets. The predominant radiation limits are the nuclear heat load to the magnet and the end-of-life dose to the electrical insulator. These limits are specified by the magnet designers as 65 kW and 5×109 rads. Detailed shielding analysis has been performed and necessary machine modifications have been proposed during the conceptual design phase (1987–1990) in order to meet the magnet radiation limits. The shield is designed to satisfy the neutronics, thermal hydraulics, and mechanical design requirements. The reference shield consists of 316 SS structure and water coolant. A 5 cm thick back layer with special materials, such as W, Pb, and B4C, is considered outside the vacuum vessel to reduce the magnet damage. Two regions with critical shielding space are identified in ITER, the inboard and divertor regions. This paper presents the various options for the shield design based on a variety of shielding materials and summarizes the different analyses carried out to guide the shield design.
