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Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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Fusion Science and Technology
August 2025
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Industry Update—August 2025
Here is a recap of industry happenings from the recent past:
SMR service center targeted for Ontario
GE Vernova Hitachi Nuclear Energy has announced plans to invest as much as $50 million to establish a Canadian BWRX-300 Engineering and Service Center near Ontario Power Generation’s Darlington New Nuclear Project site. The Ontario government had previously approved the construction of the first of four BWRX-300 small modular reactors at the site. The center will provide engineering and technical services for the long-term operation and maintenance of the future fleet of SMRs in Ontario. It will also serve as a hub for innovation and training, knowledge sharing, supply chain engagement, and workforce development.
F. Castejón, A. Cappa, M. Tereshchenko, S. S. Pavlov, A. Fernández
Fusion Science and Technology | Volume 52 | Number 2 | August 2007 | Pages 230-239
Technical Paper | Electron Cyclotron Wave Physics, Technology, and Applications - Part 1 | doi.org/10.13182/FST07-A1502
Articles are hosted by Taylor and Francis Online.
The relativistic effects on electron Bernstein wave (EBW) heating of plasmas confined in the TJ-II stellarator are presented in this work. The Ordinary-eXtraordinary-Bernstein mode conversion at the fundamental electron cyclotron harmonic (f = 28 GHz for the TJ-II central magnetic field) is chosen as the scenario for these estimates. This heating scheme presents high absorbed power for central densities above 1.2 × 1019 m-3 and has no upper density limit. Relativistic and nonrelativistic calculations have been performed using the TRUBA beam/ray-tracing code. For this purpose, the weakly relativistic dispersion relation valid for any values of the parallel and perpendicular refractive indexes, thus suitable for EBW, has been obtained. This dispersion relation has been introduced in TRUBA to estimate the ray trajectories and the power absorption to all orders of Larmor radius in the weakly relativistic regime. The result of our comparison is that the relativistic effects are not negligible and must be taken into account both on the ray trajectories and in the power absorption estimations. We also show that the relativistic absorption coefficient is lower than the nonrelativistic one, for the values of parallel refractive index that happen in TJ-II, and the power deposition profile is more centered.
