Resonance frequency broadening of wave-particle interaction in tokamaks due to Alfvénic eigenmode
We use the guiding center code ORBIT to study the broadening of resonances and the parametric dependence of the resonance frequency broadening width on the nonlinear particle trapping frequency of wave-particle interaction with specific examples using realistic equilibrium DIII-D shot 159243 (Collin...
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| Veröffentlicht in: | Nuclear fusion 2018-06, Vol.58 (8), p.82017 |
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| container_title | Nuclear fusion |
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| creator | Meng, G. Gorelenkov, N.N. Duarte, V.N. Berk, H.L. White, R.B. Wang, X.G. |
| description | We use the guiding center code ORBIT to study the broadening of resonances and the parametric dependence of the resonance frequency broadening width on the nonlinear particle trapping frequency of wave-particle interaction with specific examples using realistic equilibrium DIII-D shot 159243 (Collins et al 2016 Phys. Rev. Lett. 116 095001). When the mode amplitude is small, the pendulum approximation for energetic particle dynamics near the resonance is found to be applicable and the ratio of the resonance frequency width to the deeply trapped bounce frequency equals 4, as predicted by theory. It is found that as the mode amplitude increases, the coefficient becomes increasingly smaller because of the breaking down of the nonlinear pendulum approximation for the wave-particle interaction. |
| doi_str_mv | 10.1088/1741-4326/aaa918 |
| format | Article |
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It is found that as the mode amplitude increases, the coefficient becomes increasingly smaller because of the breaking down of the nonlinear pendulum approximation for the wave-particle interaction.</description><identifier>ISSN: 0029-5515</identifier><identifier>EISSN: 1741-4326</identifier><identifier>DOI: 10.1088/1741-4326/aaa918</identifier><identifier>CODEN: NUFUAU</identifier><language>eng</language><publisher>United States: IOP Publishing</publisher><subject>70 PLASMA PHYSICS AND FUSION TECHNOLOGY ; DIII-D ; Resonance broadening ; RSAE ; wave-particle interaction</subject><ispartof>Nuclear fusion, 2018-06, Vol.58 (8), p.82017</ispartof><rights>2018 IAEA, Vienna</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c373t-5d9be75c3c757c33091be21fe89f5d4c4ec071f37e296d7a29f58c70d1ac011d3</citedby><cites>FETCH-LOGICAL-c373t-5d9be75c3c757c33091be21fe89f5d4c4ec071f37e296d7a29f58c70d1ac011d3</cites><orcidid>0000-0001-8096-7518 ; 0000000180967518</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://iopscience.iop.org/article/10.1088/1741-4326/aaa918/pdf$$EPDF$$P50$$Giop$$H</linktopdf><link.rule.ids>230,314,780,784,885,27923,27924,53845,53892</link.rule.ids><backlink>$$Uhttps://www.osti.gov/servlets/purl/1425207$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Meng, G.</creatorcontrib><creatorcontrib>Gorelenkov, N.N.</creatorcontrib><creatorcontrib>Duarte, V.N.</creatorcontrib><creatorcontrib>Berk, H.L.</creatorcontrib><creatorcontrib>White, R.B.</creatorcontrib><creatorcontrib>Wang, X.G.</creatorcontrib><creatorcontrib>Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)</creatorcontrib><title>Resonance frequency broadening of wave-particle interaction in tokamaks due to Alfvénic eigenmode</title><title>Nuclear fusion</title><addtitle>NF</addtitle><addtitle>Nucl. Fusion</addtitle><description>We use the guiding center code ORBIT to study the broadening of resonances and the parametric dependence of the resonance frequency broadening width on the nonlinear particle trapping frequency of wave-particle interaction with specific examples using realistic equilibrium DIII-D shot 159243 (Collins et al 2016 Phys. Rev. Lett. 116 095001). When the mode amplitude is small, the pendulum approximation for energetic particle dynamics near the resonance is found to be applicable and the ratio of the resonance frequency width to the deeply trapped bounce frequency equals 4, as predicted by theory. It is found that as the mode amplitude increases, the coefficient becomes increasingly smaller because of the breaking down of the nonlinear pendulum approximation for the wave-particle interaction.</description><subject>70 PLASMA PHYSICS AND FUSION TECHNOLOGY</subject><subject>DIII-D</subject><subject>Resonance broadening</subject><subject>RSAE</subject><subject>wave-particle interaction</subject><issn>0029-5515</issn><issn>1741-4326</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNp1kM1KAzEUhYMoWKt7l8G1Y5PJpJlZluIfFATRdcjc3KnpT1KTVOkj-Ry-mFMq7lzdew_nXDgfIZec3XBW1yOuKl5UohyPjDENr4_I4E86JgPGyqaQkstTcpbSgjFecSEGpH3GFLzxgLSL-L5FDzvaxmAseufnNHT003xgsTExO1ghdT5jNJBd8P1Oc1iatVkmarfYH3Sy6j6-v7wDim6Ofh0snpOTzqwSXvzOIXm9u32ZPhSzp_vH6WRWgFAiF9I2LSoJApRUIARreIsl77BuOmkrqBCY4p1QWDZjq0zZyzUoZrkBxrkVQ3J1-BtSdjqBywhvELxHyJpXpSyZ6k3sYIIYUorY6U10axN3mjO9B6n31PSemj6A7CPXh4gLG70I2-j7Fv_bfwCBA3ZI</recordid><startdate>20180629</startdate><enddate>20180629</enddate><creator>Meng, G.</creator><creator>Gorelenkov, N.N.</creator><creator>Duarte, V.N.</creator><creator>Berk, H.L.</creator><creator>White, R.B.</creator><creator>Wang, X.G.</creator><general>IOP Publishing</general><general>IOP Science</general><scope>AAYXX</scope><scope>CITATION</scope><scope>OIOZB</scope><scope>OTOTI</scope><orcidid>https://orcid.org/0000-0001-8096-7518</orcidid><orcidid>https://orcid.org/0000000180967518</orcidid></search><sort><creationdate>20180629</creationdate><title>Resonance frequency broadening of wave-particle interaction in tokamaks due to Alfvénic eigenmode</title><author>Meng, G. ; Gorelenkov, N.N. ; Duarte, V.N. ; Berk, H.L. ; White, R.B. ; Wang, X.G.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c373t-5d9be75c3c757c33091be21fe89f5d4c4ec071f37e296d7a29f58c70d1ac011d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>70 PLASMA PHYSICS AND FUSION TECHNOLOGY</topic><topic>DIII-D</topic><topic>Resonance broadening</topic><topic>RSAE</topic><topic>wave-particle interaction</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Meng, G.</creatorcontrib><creatorcontrib>Gorelenkov, N.N.</creatorcontrib><creatorcontrib>Duarte, V.N.</creatorcontrib><creatorcontrib>Berk, H.L.</creatorcontrib><creatorcontrib>White, R.B.</creatorcontrib><creatorcontrib>Wang, X.G.</creatorcontrib><creatorcontrib>Princeton Plasma Physics Lab. 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| source | Institute of Physics Journals |
| subjects | 70 PLASMA PHYSICS AND FUSION TECHNOLOGY DIII-D Resonance broadening RSAE wave-particle interaction |
| title | Resonance frequency broadening of wave-particle interaction in tokamaks due to Alfvénic eigenmode |
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