Geodesic Acoustic Mode Temporal Parameters Effect on the LH-Transition Initiation Possibility in TUMAN-3M Tokamak
- Autores: Belokurov A.1, Abdullina G.1, Askinazi L.1, Bulanin V.2, Zhubr N.1, Kornev V.1, Krikunov S.1, Lebedev S.1, Petrov A.2, Razumenko D.1, Tukachinsky A.1, Yashin A.2
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Afiliações:
- Ioffe Physical Technical Institute, Russian Academy of Sciences
- Peter the Great St. Petersburg Polytechnic University
- Edição: Volume 45, Nº 8 (2019)
- Páginas: 783-785
- Seção: Article
- URL: https://journals.rcsi.science/1063-7850/article/view/208393
- DOI: https://doi.org/10.1134/S1063785019080066
- ID: 208393
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Resumo
Geodesic acoustic mode (GAM) observations in TUMAN-3M tokamak show that in ohmic discharges with low plasma density GAM have intermittent character; transition to high confinement regime (LH-transition) is usually preceded by a short (up to 5 ms) GAM burst series with distinctive frequency drop, or there exists long (up to 30 ms) GAM burst series evolution with several characteristic timescales and varying amplitude. To determinate the effect of GAM temporal parameters on the possibility of LH-transition initiation numerical modeling of plasma density profile evolution under the effect of GAM burst sequence with varying frequency and amplitude was carried out.
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Sobre autores
A. Belokurov
Ioffe Physical Technical Institute, Russian Academy of Sciences
Autor responsável pela correspondência
Email: belokurov@mail.ioffe.ru
Rússia, St. Petersburg, 194021
G. Abdullina
Ioffe Physical Technical Institute, Russian Academy of Sciences
Email: belokurov@mail.ioffe.ru
Rússia, St. Petersburg, 194021
L. Askinazi
Ioffe Physical Technical Institute, Russian Academy of Sciences
Email: belokurov@mail.ioffe.ru
Rússia, St. Petersburg, 194021
V. Bulanin
Peter the Great St. Petersburg Polytechnic University
Email: belokurov@mail.ioffe.ru
Rússia, St. Petersburg, 195251
N. Zhubr
Ioffe Physical Technical Institute, Russian Academy of Sciences
Email: belokurov@mail.ioffe.ru
Rússia, St. Petersburg, 194021
V. Kornev
Ioffe Physical Technical Institute, Russian Academy of Sciences
Email: belokurov@mail.ioffe.ru
Rússia, St. Petersburg, 194021
S. Krikunov
Ioffe Physical Technical Institute, Russian Academy of Sciences
Email: belokurov@mail.ioffe.ru
Rússia, St. Petersburg, 194021
S. Lebedev
Ioffe Physical Technical Institute, Russian Academy of Sciences
Email: belokurov@mail.ioffe.ru
Rússia, St. Petersburg, 194021
A. Petrov
Peter the Great St. Petersburg Polytechnic University
Email: belokurov@mail.ioffe.ru
Rússia, St. Petersburg, 195251
D. Razumenko
Ioffe Physical Technical Institute, Russian Academy of Sciences
Email: belokurov@mail.ioffe.ru
Rússia, St. Petersburg, 194021
A. Tukachinsky
Ioffe Physical Technical Institute, Russian Academy of Sciences
Email: belokurov@mail.ioffe.ru
Rússia, St. Petersburg, 194021
A. Yashin
Peter the Great St. Petersburg Polytechnic University
Email: belokurov@mail.ioffe.ru
Rússia, St. Petersburg, 195251