Global magnetohydrodynamic instabilities in the L-2M stellarator
Analysis of global magnetohydrodynamic (MHD) instabilities in the L-2M stellarator (Prokhorov General Physics Institute, Russian Academy of Sciences) is presented. The properties of free-boundary equilibria states are outlined, the stability conditions for small-scale modes are briefly discussed, an...
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| Veröffentlicht in: | Plasma physics reports 2015-12, Vol.41 (12), p.1016-1022 |
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| creator | Mikhailov, M. I. Shchepetov, S. V. Nührenberg, C. Nührenberg, J. |
| description | Analysis of global magnetohydrodynamic (MHD) instabilities in the L-2M stellarator (Prokhorov General Physics Institute, Russian Academy of Sciences) is presented. The properties of free-boundary equilibria states are outlined, the stability conditions for small-scale modes are briefly discussed, and the number of trapped particles is estimated. All the magnetic configurations under study are stable against ballooning modes. It is shown that global ideal internal MHD modes can be found reliably only in Mercier unstable plasmas. In plasma that is stable with respect to the Mercier criterion, global unstable modes that are localized in the vicinity of the free plasma boundary and are not associated with any rational magnetic surface inside the plasma (the so-called peeling modes) can be found. The radial structure of all perturbations under study is almost entirely determined by the poloidal coupling of harmonics. The results of calculations are compared with the available experimental data. |
| doi_str_mv | 10.1134/S1063780X15120107 |
| format | Article |
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The radial structure of all perturbations under study is almost entirely determined by the poloidal coupling of harmonics. The results of calculations are compared with the available experimental data.</description><identifier>ISSN: 1063-780X</identifier><identifier>EISSN: 1562-6938</identifier><identifier>DOI: 10.1134/S1063780X15120107</identifier><language>eng</language><publisher>Moscow: Pleiades Publishing</publisher><subject>Atomic ; BALLOONING INSTABILITY ; CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ; COUPLING ; DISTURBANCES ; EQUILIBRIUM ; HARMONICS ; L-2 STELLARATOR ; MAGNETIC SURFACES ; MAGNETOHYDRODYNAMICS ; MERCIER CRITERION ; Molecular ; Optical and Plasma Physics ; Physics ; Physics and Astronomy ; PLASMA ; Stellarators ; TRAPPING</subject><ispartof>Plasma physics reports, 2015-12, Vol.41 (12), p.1016-1022</ispartof><rights>Pleiades Publishing, Ltd. 2015</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c316t-ae7befd24d82f22155a425186aeefc3ae214bd8e5d09be7fe00d98b715e03fde3</citedby><cites>FETCH-LOGICAL-c316t-ae7befd24d82f22155a425186aeefc3ae214bd8e5d09be7fe00d98b715e03fde3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1134/S1063780X15120107$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1134/S1063780X15120107$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>230,314,776,780,881,27903,27904,41467,42536,51297</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/22472013$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Mikhailov, M. I.</creatorcontrib><creatorcontrib>Shchepetov, S. V.</creatorcontrib><creatorcontrib>Nührenberg, C.</creatorcontrib><creatorcontrib>Nührenberg, J.</creatorcontrib><title>Global magnetohydrodynamic instabilities in the L-2M stellarator</title><title>Plasma physics reports</title><addtitle>Plasma Phys. Rep</addtitle><description>Analysis of global magnetohydrodynamic (MHD) instabilities in the L-2M stellarator (Prokhorov General Physics Institute, Russian Academy of Sciences) is presented. The properties of free-boundary equilibria states are outlined, the stability conditions for small-scale modes are briefly discussed, and the number of trapped particles is estimated. All the magnetic configurations under study are stable against ballooning modes. It is shown that global ideal internal MHD modes can be found reliably only in Mercier unstable plasmas. In plasma that is stable with respect to the Mercier criterion, global unstable modes that are localized in the vicinity of the free plasma boundary and are not associated with any rational magnetic surface inside the plasma (the so-called peeling modes) can be found. The radial structure of all perturbations under study is almost entirely determined by the poloidal coupling of harmonics. The results of calculations are compared with the available experimental data.</description><subject>Atomic</subject><subject>BALLOONING INSTABILITY</subject><subject>CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS</subject><subject>COUPLING</subject><subject>DISTURBANCES</subject><subject>EQUILIBRIUM</subject><subject>HARMONICS</subject><subject>L-2 STELLARATOR</subject><subject>MAGNETIC SURFACES</subject><subject>MAGNETOHYDRODYNAMICS</subject><subject>MERCIER CRITERION</subject><subject>Molecular</subject><subject>Optical and Plasma Physics</subject><subject>Physics</subject><subject>Physics and Astronomy</subject><subject>PLASMA</subject><subject>Stellarators</subject><subject>TRAPPING</subject><issn>1063-780X</issn><issn>1562-6938</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNp9kEFLAzEQhYMoWKs_wNuC59VMstlNb0rRVqh4UMFbyCaTNmW7kSQe-u9NqTfB08zwvjfwHiHXQG8BeHP3BrTlnaSfIIBRoN0JmYBoWd3OuDwte5Hrg35OLlLaUgogBUzI_WIIvR6qnV6PmMNmb2Ow-1HvvKn8mLLu_eCzx1SuKm-wWtXspUoZh0FHnUO8JGdODwmvfueUfDw9vs-X9ep18Tx_WNWGQ5trjV2PzrLGSuYYAyF0wwTIViM6wzUyaHorUVg667FzSKmdyb4DgZQ7i3xKbo5_Q8peJeMzmo0J44gmK8aarqTmhYIjZWJIKaJTX9HvdNwroOpQlPpTVPGwoycVdlxjVNvwHccS5h_TD9Y1auk</recordid><startdate>20151201</startdate><enddate>20151201</enddate><creator>Mikhailov, M. 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I.</creatorcontrib><creatorcontrib>Shchepetov, S. V.</creatorcontrib><creatorcontrib>Nührenberg, C.</creatorcontrib><creatorcontrib>Nührenberg, J.</creatorcontrib><collection>CrossRef</collection><collection>OSTI.GOV</collection><jtitle>Plasma physics reports</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Mikhailov, M. I.</au><au>Shchepetov, S. V.</au><au>Nührenberg, C.</au><au>Nührenberg, J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Global magnetohydrodynamic instabilities in the L-2M stellarator</atitle><jtitle>Plasma physics reports</jtitle><stitle>Plasma Phys. 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In plasma that is stable with respect to the Mercier criterion, global unstable modes that are localized in the vicinity of the free plasma boundary and are not associated with any rational magnetic surface inside the plasma (the so-called peeling modes) can be found. The radial structure of all perturbations under study is almost entirely determined by the poloidal coupling of harmonics. The results of calculations are compared with the available experimental data.</abstract><cop>Moscow</cop><pub>Pleiades Publishing</pub><doi>10.1134/S1063780X15120107</doi><tpages>7</tpages></addata></record> |
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| ispartof | Plasma physics reports, 2015-12, Vol.41 (12), p.1016-1022 |
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| language | eng |
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| source | Springer Nature - Complete Springer Journals |
| subjects | Atomic BALLOONING INSTABILITY CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS COUPLING DISTURBANCES EQUILIBRIUM HARMONICS L-2 STELLARATOR MAGNETIC SURFACES MAGNETOHYDRODYNAMICS MERCIER CRITERION Molecular Optical and Plasma Physics Physics Physics and Astronomy PLASMA Stellarators TRAPPING |
| title | Global magnetohydrodynamic instabilities in the L-2M stellarator |
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