Particle source and radial electric field shear as the factors affecting the LH-transition possibility and dynamics in a tokamak

A. A. Belokurov; G. Abdullina; L. G. Askinazi; V. V. Bulanin; L. Chone; A. D. Gurchenko; E. Z. Gusakov; T. P. Kiviniemi; V. A. Kornev; S. Krikunov; D. Kouprienko; S. Lashkul; S. Lebedev; S. Leerink; P. Niskala; A. Petrov; D. Razumenko; A. S. Tukachinsky; A. Yu Yashin; N. A. Zhubr

doi:10.1088/1402-4896/abbfcc

Particle source and radial electric field shear as the factors affecting the LH-transition possibility and dynamics in a tokamak

A. A. Belokurov^*, G. Abdullina, L. G. Askinazi, V. V. Bulanin, L. Chone, A. D. Gurchenko, E. Z. Gusakov, T. P. Kiviniemi, V. A. Kornev, S. Krikunov, D. Kouprienko, S. Lashkul, S. Lebedev, S. Leerink, P. Niskala, A. Petrov, D. Razumenko, A. S. Tukachinsky, A. Yu Yashin, N. A. Zhubr

^*Corresponding author for this work

Research output: Contribution to journal › Article › Scientific › peer-review

Abstract

Numerous theoretical and experimental studies have proved the important role of radial electric field inhomogeneity, or shear, in LH-transition initiation, and established heating power threshold for transition, although some experiments provide the observation of LH-transition dependency on particle source. It is necessary to apply a concerted approach to describe LH-transition initiation possibility and dynamics, considering E-r shear, particle source and turbulence properties as the main factors responsible for LH-transition initiation.

Original language	English
Article number	115604
Number of pages	10
Journal	Physica Scripta
Volume	95
Issue number	11
DOIs	https://doi.org/10.1088/1402-4896/abbfcc
Publication status	Published - Nov 2020
MoE publication type	A1 Journal article-refereed

Funding

The work is supported by Ioffe Institute (experiments on TUMAN-3M and FT-2 tokamaks) and Russian Science Foundation (numerical modeling, project No 18-72-10028).

Keywords

plasma
tokamak
LH-transition
GAM
pellet injection
radial electric field
GEODESIC ACOUSTIC MODE
H-MODE
ENERGY CONFINEMENT
TRANSPORT
TURBULENCE
SUPPRESSION
ROTATION
PLASMA

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Belokurov, A. A., Abdullina, G., Askinazi, L. G., Bulanin, V. V., Chone, L., Gurchenko, A. D., Gusakov, E. Z., Kiviniemi, T. P., Kornev, V. A., Krikunov, S., Kouprienko, D., Lashkul, S., Lebedev, S., Leerink, S., Niskala, P., Petrov, A., Razumenko, D., Tukachinsky, A. S., Yashin, A. Y., & Zhubr, N. A. (2020). Particle source and radial electric field shear as the factors affecting the LH-transition possibility and dynamics in a tokamak. Physica Scripta, 95(11), Article 115604. https://doi.org/10.1088/1402-4896/abbfcc

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title = "Particle source and radial electric field shear as the factors affecting the LH-transition possibility and dynamics in a tokamak",

abstract = "Numerous theoretical and experimental studies have proved the important role of radial electric field inhomogeneity, or shear, in LH-transition initiation, and established heating power threshold for transition, although some experiments provide the observation of LH-transition dependency on particle source. It is necessary to apply a concerted approach to describe LH-transition initiation possibility and dynamics, considering E-r shear, particle source and turbulence properties as the main factors responsible for LH-transition initiation.",

keywords = "plasma, tokamak, LH-transition, GAM, pellet injection, radial electric field, GEODESIC ACOUSTIC MODE, H-MODE, ENERGY CONFINEMENT, TRANSPORT, TURBULENCE, SUPPRESSION, ROTATION, PLASMA",

author = "Belokurov, \{A. A.\} and G. Abdullina and Askinazi, \{L. G.\} and Bulanin, \{V. V.\} and L. Chone and Gurchenko, \{A. D.\} and Gusakov, \{E. Z.\} and Kiviniemi, \{T. P.\} and Kornev, \{V. A.\} and S. Krikunov and D. Kouprienko and S. Lashkul and S. Lebedev and S. Leerink and P. Niskala and A. Petrov and D. Razumenko and Tukachinsky, \{A. S.\} and Yashin, \{A. Yu\} and Zhubr, \{N. A.\}",

year = "2020",

month = nov,

doi = "10.1088/1402-4896/abbfcc",

language = "English",

volume = "95",

journal = "Physica Scripta",

issn = "0031-8949",

publisher = "Institute of Physics Publishing",

number = "11",

}

Belokurov, AA, Abdullina, G, Askinazi, LG, Bulanin, VV, Chone, L, Gurchenko, AD, Gusakov, EZ, Kiviniemi, TP, Kornev, VA, Krikunov, S, Kouprienko, D, Lashkul, S, Lebedev, S, Leerink, S, Niskala, P, Petrov, A, Razumenko, D, Tukachinsky, AS, Yashin, AY & Zhubr, NA 2020, 'Particle source and radial electric field shear as the factors affecting the LH-transition possibility and dynamics in a tokamak', Physica Scripta, vol. 95, no. 11, 115604. https://doi.org/10.1088/1402-4896/abbfcc

TY - JOUR

T1 - Particle source and radial electric field shear as the factors affecting the LH-transition possibility and dynamics in a tokamak

AU - Belokurov, A. A.

AU - Abdullina, G.

AU - Askinazi, L. G.

AU - Bulanin, V. V.

AU - Chone, L.

AU - Gurchenko, A. D.

AU - Gusakov, E. Z.

AU - Kiviniemi, T. P.

AU - Kornev, V. A.

AU - Krikunov, S.

AU - Kouprienko, D.

AU - Lashkul, S.

AU - Lebedev, S.

AU - Leerink, S.

AU - Niskala, P.

AU - Petrov, A.

AU - Razumenko, D.

AU - Tukachinsky, A. S.

AU - Yashin, A. Yu

AU - Zhubr, N. A.

PY - 2020/11

Y1 - 2020/11

N2 - Numerous theoretical and experimental studies have proved the important role of radial electric field inhomogeneity, or shear, in LH-transition initiation, and established heating power threshold for transition, although some experiments provide the observation of LH-transition dependency on particle source. It is necessary to apply a concerted approach to describe LH-transition initiation possibility and dynamics, considering E-r shear, particle source and turbulence properties as the main factors responsible for LH-transition initiation.

AB - Numerous theoretical and experimental studies have proved the important role of radial electric field inhomogeneity, or shear, in LH-transition initiation, and established heating power threshold for transition, although some experiments provide the observation of LH-transition dependency on particle source. It is necessary to apply a concerted approach to describe LH-transition initiation possibility and dynamics, considering E-r shear, particle source and turbulence properties as the main factors responsible for LH-transition initiation.

KW - plasma

KW - tokamak

KW - LH-transition

KW - GAM

KW - pellet injection

KW - radial electric field

KW - GEODESIC ACOUSTIC MODE

KW - H-MODE

KW - ENERGY CONFINEMENT

KW - TRANSPORT

KW - TURBULENCE

KW - SUPPRESSION

KW - ROTATION

KW - PLASMA

U2 - 10.1088/1402-4896/abbfcc

DO - 10.1088/1402-4896/abbfcc

M3 - Article

SN - 0031-8949

VL - 95

JO - Physica Scripta

JF - Physica Scripta

IS - 11

M1 - 115604

ER -

Particle source and radial electric field shear as the factors affecting the LH-transition possibility and dynamics in a tokamak

Abstract

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Keywords

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