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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.
K. Takahashi, N. Kobayashi, J. Ohmori, S. Suzuki, A. Kasugai, K. Sakamoto
Fusion Science and Technology | Volume 52 | Number 2 | August 2007 | Pages 266-280
Technical Paper | Electron Cyclotron Wave Physics, Technology, and Applications - Part 1 | doi.org/10.13182/FST07-A1506
Articles are hosted by Taylor and Francis Online.
Progress on design of an International Thermonuclear Experimental Reactor (ITER) equatorial electron cyclotron launcher with analytical and research and development studies of the components is described. The modified design of the front shield module is proposed with electromagnetic and structure analysis. The analytical investigation of the modified steering mirror design shows that maximum temperature and stress intensity are 289°C and 336 MPa on the mirror surface (copper alloy) and the inner surface of the cooling tube (Type 316 stainless steel) in the mirror, respectively. Maximum stress intensity of the spiral tube to feed cooling water to the steering mirror is calculated to be 139 MPa. These values are less than the allowable level. High heat flux irradiation experiments of the mirror mock-up and fatigue tests of the spiral tube were carried out, and their results proved that the concept of the steering mirror structure was feasible. The results on neutron irradiation tests of the composing materials for an ultrasonic motor and the alternatives such as polyimide and liquid crystal polymer indicate that the motor with those materials is available for the ITER launcher. The remote maintenance scheme of the launcher, which corresponded one-to-one with the fabrication scenario, was also introduced. A "front-access scheme" and a "rear-access scheme" are considered, and their feasibilities are discussed.
