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Fusion Science and Technology
DOE renews Portsmouth grant to Ohio University
The Department of Energy’s Office of Environmental Management has renewed a $2.5 million grant to Ohio University to support community redevelopment around the DOE’s Portsmouth Site. Since 2016, the DOE has provided a total of $8.2 million to the university for work with the communities.
The DOE grant, which began on October 1, will be administered over five years through September 30, 2027. A previous grant expired on September 30.
M. Y. Isaev, V. M. Leonov, S. Y. Medvedev
Fusion Science and Technology | Volume 75 | Number 3 | April 2019 | Pages 218-225
Regular Technical Paper | dx.doi.org/10.1080/15361055.2018.1562315
Articles are hosted by Taylor and Francis Online.
Properties of toroidal Alfvén eigenmodes (TAEs), driven by neutral beam injection (NBI) hot ions, are described for the tokamak T-15 under construction in the Kurchatov Institute to test a possible influence on the beam and plasma particle losses. The T-15 baseline scenario with a 10-s flat-top 2 MA current stage, 6-MW NBI plus 6 MW of electron cyclotron resonance (ECR) heating is computed with the ASTRA code. The spatial structure and the frequencies of different TAE modes with the toroidal indexes n = 2 to 8 have been obtained with the ideal magnetohydrodynamic KINX code. The bulk plasma Landau damping, linear growth rates, and nonlinear evolution of the TAE mode amplitudes driven by the NBI ions have been computed with the VENUS code. Our numerical estimations for the T-15 TAE modes are compared with experimental and theoretical results for the DIII-D and NSTX tokamaks.