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Quasi-coherent mode evolution in discharges with positive radial electric field at the T-10 tokamak

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dc.contributor.authorDrabinskiy, M. A.
dc.contributor.authorEliseev, L. G.
dc.contributor.authorKhabanov, P. O.
dc.contributor.authorKharchev, N. K.
dc.contributor.authorMelnikov, A. V/.
dc.contributor.authorМельников, Александр Владимирович
dc.date.accessioned2024-11-29T23:44:38Z
dc.date.available2024-11-29T23:44:38Z
dc.date.issued2021
dc.description.abstract© 2021 Institute of Physics Publishing. All rights reserved.The effect of the high-power ECRH on the quasi-coherent (QC) mode in the plasma of the T-10 tokamak with the magnetic field B= 2.2 T, plasma current = 230 kA and chordaveraged electron density <ne> ≈ 1·1019m-3is discussed. The most pronounced changes appear in the core plasma region with r < 0.5a. For the ECRH power PECRH= 2.2 MW causing the appearance of the positive radial electric field ErEC= +20 V/cm (in the OH stage, the occurring field is ErOH= -75 V/cm), the mean frequency of the QC-mode gradually decreases from fQCOH= 80-100 kHz (in the OH stage) to fQCEC= 20 kHz, and its frequency spread ΔfQCdecreases from ΔfQCOH= ±50 kHz to ΔfQCEC= ±10 kHz. For the ECRH power PECRH= 1.7 MW and weak negative radial electric field (ErEC= -20 V/cm), the mean frequency decreases to fQCEC= 40 kHz, and the frequency spread becomes ΔfQCEC= ±30 kHz. After the ECRH-induced drop, the QC-mode mean frequency increases with increasing line-averaged density.
dc.identifier.citationQuasi-coherent mode evolution in discharges with positive radial electric field at the T-10 tokamak / Drabinskiy, M.A. [et al.] // Journal of Physics: Conference Series. - 2021. - 2055. - № 1. - 10.1088/1742-6596/2055/1/012001
dc.identifier.doi10.1088/1742-6596/2055/1/012001
dc.identifier.urihttps://www.doi.org/10.1088/1742-6596/2055/1/012001
dc.identifier.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85119269531&origin=resultslist
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/25019
dc.relation.ispartofJournal of Physics: Conference Series
dc.titleQuasi-coherent mode evolution in discharges with positive radial electric field at the T-10 tokamak
dc.typeConference Paper
dspace.entity.typePublication
oaire.citation.issue1
oaire.citation.volume2055
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