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First experiments on ICRF discharge generation by a W7-X-like antenna in the Uragan-2M stellarator

Moiseyenko, Volodymyr (author)
Institute of Plasma Physics of the National Science Center “Kharkiv Institute of Physics and Technology”, Kharkiv, Ukraine
Kovtun, Yu. V. (author)
Wauters, T. (author)
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Goriaev, A. (author)
Lyssoivan, A. I. (author)
Lozin, A. V. (author)
Pavlichenko, R. O. (author)
Shapoval, A. N. (author)
Maznichenko, S. M. (author)
Korovin, V. B. (author)
Kramskoy, E. D. (author)
Kozulya, M. M. (author)
Zamanov, N. V. (author)
Siusko, Y. V. (author)
Krasiuk, A. Yu. (author)
Romanov, V. S. (author)
Alonso, A. (author)
Brakel, R. (author)
Dinklage, A. (author)
Hartmann, D. (author)
Kazakov, Ye. (author)
Laqua, H. (author)
Ongena, J. (author)
Stange, T. (author)
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 (creator_code:org_t)
2020-10-28
2020
English.
In: Journal of Plasma Physics. - : Cambridge University Press (CUP). - 0022-3778 .- 1469-7807. ; 86:5
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • In support of the ICRF experiments planned on the Wendelstein 7-X (W7-X) stellarator, i.e. fast ion generation, wall conditioning, target plasma production and heating, a first experimental study on plasma production has been made in the Uragan-2M (U-2M) stellarator using W7-X-like two-strap antenna. In all the experiments, antenna monopole phasing was used. The W7-X-like antenna operation with launched radiofrequency power of ~100 kW have been performed in helium (p = (4–14) × 10−2 Pa) with the vacuum vessel walls pre-loaded with hydrogen. Production of plasma with a density higher than 1012 cm−3 was observed near the first harmonic of the hydrogen cyclotron frequency. Operation at first hydrogen harmonic is feasible in W7-X future ICRF experiments.

Subject headings

NATURVETENSKAP  -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)

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