LH-transition initiation and dynamics in a conventional tokamak

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2019-11-26
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en
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Proceedings of the International Conference on Advances and Applications in Plasma Physics, AAPP 2019, AIP Conference Proceedings, Volume 2179
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.
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Abdullina , G , Askinazi , L , Belokurov , A , Bulanin , V , Chôné , L , Gurchenko , A , Gusakov , E , Kiviniemi , T , Kornev , V , Krikunov , S , Kouprienko , D , Lashkul , S , Lebedev , S , Leerink , S , Niskala , P , Petrov , A , Tukachinsky , A , Yashin , 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 , International Conference on Advances and Applications in Plasma Physics , St. Petersburg , Russian Federation , 18/09/2019 . https://doi.org/10.1063/1.5135475