LH-transition initiation and dynamics in a conventional tokamak

Gulnara Abdullina, Leonid Askinazi, Alexander Belokurov*, Victor Bulanin, Laurent Chôné, Alexei Gurchenko, Evgenii Gusakov, Timo Kiviniemi, Vladimir Kornev, Sergei Krikunov, Denis Kouprienko, Sergei Lashkul, Sergei Lebedev, Susan Leerink, Paavo Niskala, Alexander Petrov, Alexander Tukachinsky, Alexander Yashin, Nikolai Zhubr

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Abstract

Radial electric field shear is crucial for turbulence suppression and transition to the H-mode, although the high shear value alone may not be sufficient for the LH-transition initiation. Temporal and spatial parameters of shear perturbation, particle source and turbulence parameters are the main factors responsible for LH-transition initiation. Different plasma discharge scenarios in two Ioffe Institute conventional tokamaks are analyzed using the model of plasma density and ion temperature evolution to clear up the role of aforementioned factors.

Original languageEnglish
Title of host publicationProceedings of the International Conference on Advances and Applications in Plasma Physics, AAPP 2019
EditorsMichael Tendler, Vladimir Rozhansky, Pavel Goncharov, Anna Kravchuk
PublisherAmerican Institute of Physics
ISBN (Electronic)9780735419261
DOIs
Publication statusPublished - 26 Nov 2019
MoE publication typeA4 Article in a conference publication
EventInternational Conference on Advances and Applications in Plasma Physics - St. Petersburg, Russian Federation
Duration: 18 Sep 201920 Sep 2019
Conference number: 1

Publication series

NameAIP Conference Proceedings
Volume2179
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceInternational Conference on Advances and Applications in Plasma Physics
Abbreviated titleAAPP
CountryRussian Federation
CitySt. Petersburg
Period18/09/201920/09/2019

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  • Cite this

    Abdullina, G., Askinazi, L., Belokurov, A., Bulanin, V., Chôné, L., Gurchenko, A., ... Zhubr, N. (2019). LH-transition initiation and dynamics in a conventional tokamak. In M. Tendler, V. Rozhansky, P. Goncharov, & A. Kravchuk (Eds.), Proceedings of the International Conference on Advances and Applications in Plasma Physics, AAPP 2019 [020002] (AIP Conference Proceedings; Vol. 2179). American Institute of Physics. https://doi.org/10.1063/1.5135475