Nonlinear excitation of energetic particle driven geodesic acoustic mode by resonance overlap with Alfvén instability in ASDEX Upgrade

dc.contributor.authorWang, Haoen
dc.contributor.authorLauber, Philippen
dc.contributor.authorTodo, Yasushien
dc.contributor.authorSuzuki, Yasuhiroen
dc.contributor.authorLi, Hanzhengen
dc.contributor.authorIdouakass, Maliken
dc.contributor.authorWang, Jialeien
dc.contributor.authorAdulsiriswad, Panithen
dc.contributor.authorZoletnik, S.en
dc.contributor.authorZohm, H.en
dc.contributor.authorZito, A.en
dc.contributor.authorZimmermann, C.F.B.en
dc.contributor.authorZilker, M.en
dc.contributor.authorZibrov, A.en
dc.contributor.authorZholobenko, W.en
dc.contributor.authorZhang, W.en
dc.contributor.authorZehetbauer, T.en
dc.contributor.authorZammuto, I.en
dc.contributor.authorZagórski, R.en
dc.contributor.authorYu, Q.en
dc.contributor.authorYoo, C.en
dc.contributor.authorYang, Q.en
dc.contributor.authorWolfrum, E.en
dc.contributor.authorWolf, R.en
dc.contributor.authorWischmeier, M.en
dc.contributor.authorWiringer, B.en
dc.contributor.authorWillensdorfer, M.en
dc.contributor.authorWhite, A.E.en
dc.contributor.authorWendler, D.en
dc.contributor.authorWeiland, M.en
dc.contributor.authorWang, X.en
dc.contributor.authorWagner, D.en
dc.contributor.authorvon Toussaint, U.en
dc.contributor.authorVoitsekhovitch, I.en
dc.contributor.authorViezzer, E.en
dc.contributor.authorVierle, T.en
dc.contributor.authorVicente, J.en
dc.contributor.authorVianello, N.en
dc.contributor.authorVerdoolaege, G.en
dc.contributor.authorVerdier, T.en
dc.contributor.authorVaroutis, S.en
dc.contributor.authorVarela, P.en
dc.contributor.authorVanovac, B.en
dc.contributor.authorVannini, F.en
dc.contributor.authorvan Zeeland, M.en
dc.contributor.authorvan Mulders, S.en
dc.contributor.authorValovic, M.en
dc.contributor.authorValisa, M.en
dc.contributor.authorUsoltseva, M.en
dc.contributor.authorUrbanczyk, G.en
dc.contributor.authorUlbl, P.en
dc.contributor.authorTripský, M.en
dc.contributor.authorTrevisan, G.en
dc.contributor.authorTreutterer, W.en
dc.contributor.authorTold, D.en
dc.contributor.authorTierens, W.en
dc.contributor.authorThorén, E.en
dc.contributor.authorTeschke, M.en
dc.contributor.authorTerranova, D.en
dc.contributor.authorTardocchi, M.en
dc.contributor.authorTardini, G.en
dc.contributor.authorTang, W.en
dc.contributor.authorTala, T.en
dc.contributor.authorTál, B.en
dc.contributor.authorSzepesi, T.en
dc.contributor.authorSuttrop, W.en
dc.contributor.authorSuarez Lopez, G.en
dc.contributor.authorStrumberger, E.en
dc.contributor.authorStroth, U.en
dc.contributor.authorStober, J.en
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dc.contributor.authorBöswirth, B.en
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dc.contributor.authorBonanomi, N.en
dc.contributor.authorBolzonella, T.en
dc.contributor.authorBody, T.en
dc.contributor.authorBock, L.en
dc.contributor.authorBock, A.en
dc.contributor.authorBobkov, V.en
dc.contributor.authorBlanken, T.en
dc.contributor.authorBirkenmeier, G.en
dc.contributor.authorBilato, R.en
dc.contributor.authorBielajew, R.en
dc.contributor.authorBiancalani, A.en
dc.contributor.authorBernert, M.en
dc.contributor.authorBernardo, J.en
dc.contributor.authorBergmann, M.en
dc.contributor.authorBergmann, A.en
dc.contributor.authorBauer, M.en
dc.contributor.authorBanon Navarro, A.en
dc.contributor.authorBandaru, V.en
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dc.contributor.authorAlessi, E.en
dc.contributor.funderInternational Fusion Energy Research Centreen
dc.contributor.funderNational Institutes of Natural Sciencesen
dc.contributor.funderMinistry of Education, Culture, Sports, Science and Technologyen
dc.contributor.funderMEXTen
dc.contributor.funderEuropean Commissionen
dc.contributor.funderNational Institute for Fusion Scienceen
dc.contributor.funderJapan Society for the Promotion of Scienceen
dc.date.accessioned2025-04-23T11:14:58Z
dc.date.available2025-04-23T11:14:58Z
dc.date.issued2025en
dc.description.abstractThe Alfvén instability nonlinearly excited the energetic-particle-driven geodesic acoustic mode on the ASDEX-Upgrade tokamak, as demonstrated experimentally. The mechanism of the energetic-particle-driven geodesic acoustic mode excitation and the mode nonlinear evolution is not yet fully understood. In the present work, a first-principles simulation using the MEGA code investigated the mode properties in both the linear growth and nonlinear saturated phases. Here we show that the simulation successfully reproduced the excitation and coexistence of these two modes, and agreed with the experimental results well. Conclusive evidence showed that the resonance overlap is the excitation mechanism of the energetic-particle-driven geodesic acoustic mode. In the linear growth phase, energetic particles that satisfied different resonance conditions excited the Alfvén instability, which then caused energetic particle redistribution in phase space. These redistributed energetic particles caused resonance overlap, exciting the energetic-particle-driven geodesic acoustic mode in the nonlinear phase. © The Author(s) 2024.en
dc.description.sponsorshipNational Institutes of Natural Sciences (01422301); International Fusion Energy Research Centre (hp210178; hp220165; hp200127); MEXT (JPMXP1020200103); European Commission(101052200 - EUROfusion); National Institute for Fusion Science (NIFS20KNST156; NIFS21KNST196; NIFS22KIST025; NIFS19KNXN397); Japan Society for the Promotion of Science (JP18H01202; JP21H04973; JP18K13529)en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.articleid1130en
dc.identifier.citationWang, H., Lauber, P., Todo, Y., Suzuki, Y., Li, H., Idouakass, M., Wang, J. and Adulsiriswad, P. (2025) 'Nonlinear excitation of energetic particle driven geodesic acoustic mode by resonance overlap with Alfvén instability in ASDEX Upgrade', Scientific reports, 15(1), p.1130. https://doi.org/10.1038/s41598-024-82577-3en
dc.identifier.doi10.1038/s41598-024-82577-3en
dc.identifier.issn20452322en
dc.identifier.issued1
dc.identifier.journaltitleScientific Reportsen
dc.identifier.urihttps://hdl.handle.net/10468/17296
dc.identifier.volume15
dc.language.isoenen
dc.publisherNature Researchen
dc.relation.project101052200en
dc.rights© 2025, the Author(s). Open Accessen
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectControlled studyen
dc.subjectGrowth curveen
dc.subjectSimulationen
dc.titleNonlinear excitation of energetic particle driven geodesic acoustic mode by resonance overlap with Alfvén instability in ASDEX Upgradeen
dc.typeArticle (peer reviewed)en
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