Strong Destabilization of Stable Modes with a Half-Frequency Associated with Chirping Geodesic Acoustic Modes in the Large Helical Device
Abrupt and strong excitation of a mode has been observed when the frequency of a chirping energetic-particle driven geodesic acoustic mode (EGAM) reaches twice the geodesic acoustic mode (GAM) frequency. The frequency of the secondary mode is the GAM frequency, which is a half-frequency of the prima...
Gespeichert in:
| Veröffentlicht in: | Physical review letters 2016-01, Vol.116 (1), p.015002-015002, Article 015002 |
|---|---|
| Hauptverfasser: | , , , , , , , , , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 015002 |
|---|---|
| container_issue | 1 |
| container_start_page | 015002 |
| container_title | Physical review letters |
| container_volume | 116 |
| creator | Ido, T Itoh, K Osakabe, M Lesur, M Shimizu, A Ogawa, K Toi, K Nishiura, M Kato, S Sasaki, M Ida, K Inagaki, S Itoh, S-I |
| description | Abrupt and strong excitation of a mode has been observed when the frequency of a chirping energetic-particle driven geodesic acoustic mode (EGAM) reaches twice the geodesic acoustic mode (GAM) frequency. The frequency of the secondary mode is the GAM frequency, which is a half-frequency of the primary EGAM. Based on the analysis of spatial structures, the secondary mode is identified as a GAM. The phase relation between the secondary mode and the primary EGAM is locked, and the evolution of the growth rate of the secondary mode indicates nonlinear excitation. The results suggest that the primary mode (EGAM) contributes to nonlinear destabilization of a subcritical mode. |
| doi_str_mv | 10.1103/physrevlett.116.015002 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_hal_p</sourceid><recordid>TN_cdi_hal_primary_oai_HAL_hal_01285753v1</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>1808091164</sourcerecordid><originalsourceid>FETCH-LOGICAL-c589t-a405029758d853707b8152fcda4d40b0c1a93f7605cf8896699b3bae14512dd03</originalsourceid><addsrcrecordid>eNqFkc1u1DAUhS0EokPhFSovYZFyHcexvRwNbQcpCERhbTnOTWPkSYbYM2h4A94aj1K6ZWXr6Dv37xByxeCaMeDv98MpzngMmFIW6mtgAqB8RlYMpC4kY9VzsgLgrNAA8oK8ivEHALCyVi_JRVlLraHkK_LnPs3T-EA_YEy29cH_tslPI516ep-FgPTT1GGkv3waqKVbG_ridsafBxzdia5jnJy3CbsF2Ax-3vtc7g7PLu_o2k2HmPJnKeNHmgakjZ0fkG4xeGdD7n30Dl-TF70NEd88vpfk--3Nt822aD7ffdysm8IJpVNhKxBQailUpwSXIFvFRNm7zlZdBS04ZjXvZQ3C9Urputa65a1FVglWdh3wS_JuqTvYYPaz39n5ZCbrzXbdmLOWj6SEFPzIMvt2YffzlFeOyex8dBiCHTHvZZgCBTrfv_o_mkfSvBSSZ7ReUDdPMafYP43BwJzTNV9yul_x2OR0s1CbJd1svHrscWh32D3Z_sXJ_wI8CaLk</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1760932573</pqid></control><display><type>article</type><title>Strong Destabilization of Stable Modes with a Half-Frequency Associated with Chirping Geodesic Acoustic Modes in the Large Helical Device</title><source>American Physical Society Journals</source><creator>Ido, T ; Itoh, K ; Osakabe, M ; Lesur, M ; Shimizu, A ; Ogawa, K ; Toi, K ; Nishiura, M ; Kato, S ; Sasaki, M ; Ida, K ; Inagaki, S ; Itoh, S-I</creator><creatorcontrib>Ido, T ; Itoh, K ; Osakabe, M ; Lesur, M ; Shimizu, A ; Ogawa, K ; Toi, K ; Nishiura, M ; Kato, S ; Sasaki, M ; Ida, K ; Inagaki, S ; Itoh, S-I ; LHD Experiment Group ; the LHD Experiment Group</creatorcontrib><description>Abrupt and strong excitation of a mode has been observed when the frequency of a chirping energetic-particle driven geodesic acoustic mode (EGAM) reaches twice the geodesic acoustic mode (GAM) frequency. The frequency of the secondary mode is the GAM frequency, which is a half-frequency of the primary EGAM. Based on the analysis of spatial structures, the secondary mode is identified as a GAM. The phase relation between the secondary mode and the primary EGAM is locked, and the evolution of the growth rate of the secondary mode indicates nonlinear excitation. The results suggest that the primary mode (EGAM) contributes to nonlinear destabilization of a subcritical mode.</description><identifier>ISSN: 0031-9007</identifier><identifier>EISSN: 1079-7114</identifier><identifier>DOI: 10.1103/physrevlett.116.015002</identifier><identifier>PMID: 26799023</identifier><language>eng</language><publisher>United States: American Physical Society</publisher><subject>Destabilization ; Devices ; Evolution ; Excitation ; Helical ; Nonlinearity ; Physics ; Plasma Physics</subject><ispartof>Physical review letters, 2016-01, Vol.116 (1), p.015002-015002, Article 015002</ispartof><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c589t-a405029758d853707b8152fcda4d40b0c1a93f7605cf8896699b3bae14512dd03</citedby><cites>FETCH-LOGICAL-c589t-a405029758d853707b8152fcda4d40b0c1a93f7605cf8896699b3bae14512dd03</cites><orcidid>0000-0001-5302-1866 ; 0000-0001-9747-5616 ; 0000-0002-4856-7108</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,780,784,885,2876,2877,27924,27925</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/26799023$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink><backlink>$$Uhttps://hal.science/hal-01285753$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Ido, T</creatorcontrib><creatorcontrib>Itoh, K</creatorcontrib><creatorcontrib>Osakabe, M</creatorcontrib><creatorcontrib>Lesur, M</creatorcontrib><creatorcontrib>Shimizu, A</creatorcontrib><creatorcontrib>Ogawa, K</creatorcontrib><creatorcontrib>Toi, K</creatorcontrib><creatorcontrib>Nishiura, M</creatorcontrib><creatorcontrib>Kato, S</creatorcontrib><creatorcontrib>Sasaki, M</creatorcontrib><creatorcontrib>Ida, K</creatorcontrib><creatorcontrib>Inagaki, S</creatorcontrib><creatorcontrib>Itoh, S-I</creatorcontrib><creatorcontrib>LHD Experiment Group</creatorcontrib><creatorcontrib>the LHD Experiment Group</creatorcontrib><title>Strong Destabilization of Stable Modes with a Half-Frequency Associated with Chirping Geodesic Acoustic Modes in the Large Helical Device</title><title>Physical review letters</title><addtitle>Phys Rev Lett</addtitle><description>Abrupt and strong excitation of a mode has been observed when the frequency of a chirping energetic-particle driven geodesic acoustic mode (EGAM) reaches twice the geodesic acoustic mode (GAM) frequency. The frequency of the secondary mode is the GAM frequency, which is a half-frequency of the primary EGAM. Based on the analysis of spatial structures, the secondary mode is identified as a GAM. The phase relation between the secondary mode and the primary EGAM is locked, and the evolution of the growth rate of the secondary mode indicates nonlinear excitation. The results suggest that the primary mode (EGAM) contributes to nonlinear destabilization of a subcritical mode.</description><subject>Destabilization</subject><subject>Devices</subject><subject>Evolution</subject><subject>Excitation</subject><subject>Helical</subject><subject>Nonlinearity</subject><subject>Physics</subject><subject>Plasma Physics</subject><issn>0031-9007</issn><issn>1079-7114</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNqFkc1u1DAUhS0EokPhFSovYZFyHcexvRwNbQcpCERhbTnOTWPkSYbYM2h4A94aj1K6ZWXr6Dv37xByxeCaMeDv98MpzngMmFIW6mtgAqB8RlYMpC4kY9VzsgLgrNAA8oK8ivEHALCyVi_JRVlLraHkK_LnPs3T-EA_YEy29cH_tslPI516ep-FgPTT1GGkv3waqKVbG_ridsafBxzdia5jnJy3CbsF2Ax-3vtc7g7PLu_o2k2HmPJnKeNHmgakjZ0fkG4xeGdD7n30Dl-TF70NEd88vpfk--3Nt822aD7ffdysm8IJpVNhKxBQailUpwSXIFvFRNm7zlZdBS04ZjXvZQ3C9Urputa65a1FVglWdh3wS_JuqTvYYPaz39n5ZCbrzXbdmLOWj6SEFPzIMvt2YffzlFeOyex8dBiCHTHvZZgCBTrfv_o_mkfSvBSSZ7ReUDdPMafYP43BwJzTNV9yul_x2OR0s1CbJd1svHrscWh32D3Z_sXJ_wI8CaLk</recordid><startdate>20160108</startdate><enddate>20160108</enddate><creator>Ido, T</creator><creator>Itoh, K</creator><creator>Osakabe, M</creator><creator>Lesur, M</creator><creator>Shimizu, A</creator><creator>Ogawa, K</creator><creator>Toi, K</creator><creator>Nishiura, M</creator><creator>Kato, S</creator><creator>Sasaki, M</creator><creator>Ida, K</creator><creator>Inagaki, S</creator><creator>Itoh, S-I</creator><general>American Physical Society</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>7U5</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><scope>1XC</scope><orcidid>https://orcid.org/0000-0001-5302-1866</orcidid><orcidid>https://orcid.org/0000-0001-9747-5616</orcidid><orcidid>https://orcid.org/0000-0002-4856-7108</orcidid></search><sort><creationdate>20160108</creationdate><title>Strong Destabilization of Stable Modes with a Half-Frequency Associated with Chirping Geodesic Acoustic Modes in the Large Helical Device</title><author>Ido, T ; Itoh, K ; Osakabe, M ; Lesur, M ; Shimizu, A ; Ogawa, K ; Toi, K ; Nishiura, M ; Kato, S ; Sasaki, M ; Ida, K ; Inagaki, S ; Itoh, S-I</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c589t-a405029758d853707b8152fcda4d40b0c1a93f7605cf8896699b3bae14512dd03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Destabilization</topic><topic>Devices</topic><topic>Evolution</topic><topic>Excitation</topic><topic>Helical</topic><topic>Nonlinearity</topic><topic>Physics</topic><topic>Plasma Physics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ido, T</creatorcontrib><creatorcontrib>Itoh, K</creatorcontrib><creatorcontrib>Osakabe, M</creatorcontrib><creatorcontrib>Lesur, M</creatorcontrib><creatorcontrib>Shimizu, A</creatorcontrib><creatorcontrib>Ogawa, K</creatorcontrib><creatorcontrib>Toi, K</creatorcontrib><creatorcontrib>Nishiura, M</creatorcontrib><creatorcontrib>Kato, S</creatorcontrib><creatorcontrib>Sasaki, M</creatorcontrib><creatorcontrib>Ida, K</creatorcontrib><creatorcontrib>Inagaki, S</creatorcontrib><creatorcontrib>Itoh, S-I</creatorcontrib><creatorcontrib>LHD Experiment Group</creatorcontrib><creatorcontrib>the LHD Experiment Group</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Hyper Article en Ligne (HAL)</collection><jtitle>Physical review letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ido, T</au><au>Itoh, K</au><au>Osakabe, M</au><au>Lesur, M</au><au>Shimizu, A</au><au>Ogawa, K</au><au>Toi, K</au><au>Nishiura, M</au><au>Kato, S</au><au>Sasaki, M</au><au>Ida, K</au><au>Inagaki, S</au><au>Itoh, S-I</au><aucorp>LHD Experiment Group</aucorp><aucorp>the LHD Experiment Group</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Strong Destabilization of Stable Modes with a Half-Frequency Associated with Chirping Geodesic Acoustic Modes in the Large Helical Device</atitle><jtitle>Physical review letters</jtitle><addtitle>Phys Rev Lett</addtitle><date>2016-01-08</date><risdate>2016</risdate><volume>116</volume><issue>1</issue><spage>015002</spage><epage>015002</epage><pages>015002-015002</pages><artnum>015002</artnum><issn>0031-9007</issn><eissn>1079-7114</eissn><abstract>Abrupt and strong excitation of a mode has been observed when the frequency of a chirping energetic-particle driven geodesic acoustic mode (EGAM) reaches twice the geodesic acoustic mode (GAM) frequency. The frequency of the secondary mode is the GAM frequency, which is a half-frequency of the primary EGAM. Based on the analysis of spatial structures, the secondary mode is identified as a GAM. The phase relation between the secondary mode and the primary EGAM is locked, and the evolution of the growth rate of the secondary mode indicates nonlinear excitation. The results suggest that the primary mode (EGAM) contributes to nonlinear destabilization of a subcritical mode.</abstract><cop>United States</cop><pub>American Physical Society</pub><pmid>26799023</pmid><doi>10.1103/physrevlett.116.015002</doi><tpages>1</tpages><orcidid>https://orcid.org/0000-0001-5302-1866</orcidid><orcidid>https://orcid.org/0000-0001-9747-5616</orcidid><orcidid>https://orcid.org/0000-0002-4856-7108</orcidid><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0031-9007 |
| ispartof | Physical review letters, 2016-01, Vol.116 (1), p.015002-015002, Article 015002 |
| issn | 0031-9007 1079-7114 |
| language | eng |
| recordid | cdi_hal_primary_oai_HAL_hal_01285753v1 |
| source | American Physical Society Journals |
| subjects | Destabilization Devices Evolution Excitation Helical Nonlinearity Physics Plasma Physics |
| title | Strong Destabilization of Stable Modes with a Half-Frequency Associated with Chirping Geodesic Acoustic Modes in the Large Helical Device |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-26T00%3A34%3A53IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_hal_p&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Strong%20Destabilization%20of%20Stable%20Modes%20with%20a%20Half-Frequency%20Associated%20with%20Chirping%20Geodesic%20Acoustic%20Modes%20in%20the%20Large%20Helical%20Device&rft.jtitle=Physical%20review%20letters&rft.au=Ido,%20T&rft.aucorp=LHD%20Experiment%20Group&rft.date=2016-01-08&rft.volume=116&rft.issue=1&rft.spage=015002&rft.epage=015002&rft.pages=015002-015002&rft.artnum=015002&rft.issn=0031-9007&rft.eissn=1079-7114&rft_id=info:doi/10.1103/physrevlett.116.015002&rft_dat=%3Cproquest_hal_p%3E1808091164%3C/proquest_hal_p%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=1760932573&rft_id=info:pmid/26799023&rfr_iscdi=true |