The isotope effect in turbulent transport control by GAMs. Observation and gyrokinetic modeling

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The isotope effect in turbulent transport control by GAMs. Observation and gyrokinetic modeling. / Gurchenko, A. D.; Gusakov, E. Z.; Niskala, P.; Altukhov, A. B.; Esipov, L. A.; Kiviniemi, T. P.; Korpilo, T.; Kouprienko, D. V.; Lashkul, S. I.; Leerink, S.; Perevalov, A. A.; Irzak, M. A.

In: Plasma Physics and Controlled Fusion, Vol. 58, No. 4, 044002, 22.01.2016.

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Gurchenko, AD, Gusakov, EZ, Niskala, P, Altukhov, AB, Esipov, LA, Kiviniemi, TP, Korpilo, T, Kouprienko, DV, Lashkul, SI, Leerink, S, Perevalov, AA & Irzak, MA 2016, 'The isotope effect in turbulent transport control by GAMs. Observation and gyrokinetic modeling', Plasma Physics and Controlled Fusion, vol. 58, no. 4, 044002. https://doi.org/10.1088/0741-3335/58/4/044002

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Gurchenko, A. D. ; Gusakov, E. Z. ; Niskala, P. ; Altukhov, A. B. ; Esipov, L. A. ; Kiviniemi, T. P. ; Korpilo, T. ; Kouprienko, D. V. ; Lashkul, S. I. ; Leerink, S. ; Perevalov, A. A. ; Irzak, M. A. / The isotope effect in turbulent transport control by GAMs. Observation and gyrokinetic modeling. In: Plasma Physics and Controlled Fusion. 2016 ; Vol. 58, No. 4.

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@article{5e81f2c3fd00494396a3d49d6ade82dc,
title = "The isotope effect in turbulent transport control by GAMs. Observation and gyrokinetic modeling",
abstract = "A comparative investigation of the isotope effect in multi-scale anomalous transport phenomena is performed both experimentally by highly localized turbulence diagnostics in comparable hydrogen and deuterium FT-2 tokamak discharges and theoretically with the help of global gyrokinetic modeling. Substantial excess of the geodesic acoustic mode (GAM) amplitude, radial wavelength and correlation length in a wide spatial region of deuterium discharge resulting in stronger modulation of drift-wave turbulence level is demonstrated by both approaches. A larger turbulence radial correlation length is found at LFS in D-discharge in experiment and a stronger modulation of gyrokinetic particles and energy fluxes is shown there by the gyrokinetic code. The gyrokinetic modeling demonstrated comparable levels of drift wave density and electric field fluctuations in hydrogen and deuterium discharges. Nevertheless, the mean value of the ion energy and particle anomalous flux provided by modeling shows the systematic isotope effect at all radii.",
keywords = "isotope effect, geodesic acoustic mode (GAM), turbulence, TOKAMAK, DIAGNOSTICS, SIMULATION, PLASMAS",
author = "Gurchenko, {A. D.} and Gusakov, {E. Z.} and P. Niskala and Altukhov, {A. B.} and Esipov, {L. A.} and Kiviniemi, {T. P.} and T. Korpilo and Kouprienko, {D. V.} and Lashkul, {S. I.} and S. Leerink and Perevalov, {A. A.} and Irzak, {M. A.}",
year = "2016",
month = "1",
day = "22",
doi = "10.1088/0741-3335/58/4/044002",
language = "English",
volume = "58",
journal = "Plasma Physics and Controlled Fusion",
issn = "0741-3335",
number = "4",

}

RIS - Download

TY - JOUR

T1 - The isotope effect in turbulent transport control by GAMs. Observation and gyrokinetic modeling

AU - Gurchenko, A. D.

AU - Gusakov, E. Z.

AU - Niskala, P.

AU - Altukhov, A. B.

AU - Esipov, L. A.

AU - Kiviniemi, T. P.

AU - Korpilo, T.

AU - Kouprienko, D. V.

AU - Lashkul, S. I.

AU - Leerink, S.

AU - Perevalov, A. A.

AU - Irzak, M. A.

PY - 2016/1/22

Y1 - 2016/1/22

N2 - A comparative investigation of the isotope effect in multi-scale anomalous transport phenomena is performed both experimentally by highly localized turbulence diagnostics in comparable hydrogen and deuterium FT-2 tokamak discharges and theoretically with the help of global gyrokinetic modeling. Substantial excess of the geodesic acoustic mode (GAM) amplitude, radial wavelength and correlation length in a wide spatial region of deuterium discharge resulting in stronger modulation of drift-wave turbulence level is demonstrated by both approaches. A larger turbulence radial correlation length is found at LFS in D-discharge in experiment and a stronger modulation of gyrokinetic particles and energy fluxes is shown there by the gyrokinetic code. The gyrokinetic modeling demonstrated comparable levels of drift wave density and electric field fluctuations in hydrogen and deuterium discharges. Nevertheless, the mean value of the ion energy and particle anomalous flux provided by modeling shows the systematic isotope effect at all radii.

AB - A comparative investigation of the isotope effect in multi-scale anomalous transport phenomena is performed both experimentally by highly localized turbulence diagnostics in comparable hydrogen and deuterium FT-2 tokamak discharges and theoretically with the help of global gyrokinetic modeling. Substantial excess of the geodesic acoustic mode (GAM) amplitude, radial wavelength and correlation length in a wide spatial region of deuterium discharge resulting in stronger modulation of drift-wave turbulence level is demonstrated by both approaches. A larger turbulence radial correlation length is found at LFS in D-discharge in experiment and a stronger modulation of gyrokinetic particles and energy fluxes is shown there by the gyrokinetic code. The gyrokinetic modeling demonstrated comparable levels of drift wave density and electric field fluctuations in hydrogen and deuterium discharges. Nevertheless, the mean value of the ion energy and particle anomalous flux provided by modeling shows the systematic isotope effect at all radii.

KW - isotope effect

KW - geodesic acoustic mode (GAM)

KW - turbulence

KW - TOKAMAK

KW - DIAGNOSTICS

KW - SIMULATION

KW - PLASMAS

UR - http://www.scopus.com/inward/record.url?scp=84961672288&partnerID=8YFLogxK

U2 - 10.1088/0741-3335/58/4/044002

DO - 10.1088/0741-3335/58/4/044002

M3 - Article

VL - 58

JO - Plasma Physics and Controlled Fusion

JF - Plasma Physics and Controlled Fusion

SN - 0741-3335

IS - 4

M1 - 044002

ER -

ID: 2497472