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Bispectral analysis of broadband turbulence and geodesic acoustic modes in the T-10 tokamak

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dc.contributor.authorRiggs, G. A.
dc.contributor.authorNogami, S. H.
dc.contributor.authorKoepke, M. E.
dc.contributor.authorMelnikov, A. V.
dc.contributor.authorМельников, Александр Владимирович
dc.date.accessioned2024-11-29T16:39:31Z
dc.date.available2024-11-29T16:39:31Z
dc.date.issued2021
dc.description.abstractLocal fluctuations of electrostatic potential, poloidal electric field, magnetic potential and electron density are simultaneously measured in the T-10 tokamak by a heavy ion beam probe (HIBP) having a five-slit energy analyser, which allows an estimate of the turbulent particle flux and E x B rotation velocity in the off-minor-axis gradient zone of the toroidal plasma column. The high spatial and temporal resolution of the modern multichannel HIBP makes it an effective tool to study plasma oscillations. Motivated by previous work that has documented time-resolved interactions between measured plasma parameters using correlation analysis (coherence of E-pol and density n(e), and cross-phase), a new result from bicorrelation analysis (bicoherence of magnetic potential A(zeta) and density n(e), and biphase) is reported for documenting the evidence of wave-wave coupling and energy transfer associated with the interaction between geodesic acoustic modes (GAM) and broadband, quasi-coherent modes.
dc.identifier.citationBispectral analysis of broadband turbulence and geodesic acoustic modes in the T-10 tokamak / Riggs, GA [et al.] // JOURNAL OF PLASMA PHYSICS. - 2021. - 87. - № 3. - 10.1017/S0022377821000490
dc.identifier.doi10.1017/S0022377821000490
dc.identifier.urihttps://www.doi.org/10.1017/S0022377821000490
dc.identifier.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000659916900001
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/24234
dc.relation.ispartofJOURNAL OF PLASMA PHYSICS
dc.titleBispectral analysis of broadband turbulence and geodesic acoustic modes in the T-10 tokamak
dc.typeArticle
dspace.entity.typePublication
oaire.citation.issue3
oaire.citation.volume87
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