Interaction of the precessional wave with free‐boundary Alfvén surface waves in tandem mirrors
A symmetric tandem mirror plugging a long central cell, with plugs stabilized by a hot‐component plasma is considered. The system is taken to have a flat pressure profile with a steep edge gradient. The interaction of the precessional mode with Alfvén waves generated in the central cell is then cons...
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| Veröffentlicht in: | Phys. Fluids; (United States) 1985-01, Vol.28 (1), p.345-351 |
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| container_title | Phys. Fluids; (United States) |
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| creator | Berk, H. L. Kaiser, T. B. |
| description | A symmetric tandem mirror plugging a long central cell, with plugs stabilized by a hot‐component plasma is considered. The system is taken to have a flat pressure profile with a steep edge gradient. The interaction of the precessional mode with Alfvén waves generated in the central cell is then considered. This analysis is noneikonal and is valid when mΔ/r |
| doi_str_mv | 10.1063/1.865154 |
| format | Article |
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L. ; Kaiser, T. B.</creator><creatorcontrib>Berk, H. L. ; Kaiser, T. B. ; Institute for Fusion Studies, University of Texas at Austin, Austin, Texas 78712</creatorcontrib><description>A symmetric tandem mirror plugging a long central cell, with plugs stabilized by a hot‐component plasma is considered. The system is taken to have a flat pressure profile with a steep edge gradient. The interaction of the precessional mode with Alfvén waves generated in the central cell is then considered. This analysis is noneikonal and is valid when mΔ/r<1 (m is the azimuthal mode number, r the plasma radius, and Δ the radial gradient scale length) for long‐wavelength radial modes. Without finite‐Larmor‐radius (FLR) effects the precessional mode is always destabilized by the excitation of the Alfvén waves for m≥2. For m=1, it is possible to achieve stabilization with conducting walls. A discussion is given of how FLR affects stabilization of the m≥2 long‐wavelength modes and of FLR stabilization of modes described in the eikonal approximation.</description><identifier>ISSN: 0031-9171</identifier><identifier>EISSN: 2163-4998</identifier><identifier>DOI: 10.1063/1.865154</identifier><identifier>CODEN: PFLDAS</identifier><language>eng</language><publisher>Woodbury, NY: American Institute of Physics</publisher><subject>70 PLASMA PHYSICS AND FUSION TECHNOLOGY ; 700107 - Fusion Energy- Plasma Research- Instabilities ; ALFVEN WAVES ; DISPERSION RELATIONS ; Exact sciences and technology ; HOT PLASMA ; HYDROMAGNETIC WAVES ; Magnetic confinement and equilibrium ; MAGNETIC MIRRORS ; OPEN PLASMA DEVICES ; Physics ; Physics of gases, plasmas and electric discharges ; Physics of plasmas and electric discharges ; PLASMA ; PLASMA PRESSURE ; PRECESSION ; STABILIZATION ; TANDEM MIRRORS ; THERMONUCLEAR DEVICES</subject><ispartof>Phys. 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L.</creatorcontrib><creatorcontrib>Kaiser, T. B.</creatorcontrib><creatorcontrib>Institute for Fusion Studies, University of Texas at Austin, Austin, Texas 78712</creatorcontrib><title>Interaction of the precessional wave with free‐boundary Alfvén surface waves in tandem mirrors</title><title>Phys. Fluids; (United States)</title><description>A symmetric tandem mirror plugging a long central cell, with plugs stabilized by a hot‐component plasma is considered. The system is taken to have a flat pressure profile with a steep edge gradient. The interaction of the precessional mode with Alfvén waves generated in the central cell is then considered. This analysis is noneikonal and is valid when mΔ/r<1 (m is the azimuthal mode number, r the plasma radius, and Δ the radial gradient scale length) for long‐wavelength radial modes. Without finite‐Larmor‐radius (FLR) effects the precessional mode is always destabilized by the excitation of the Alfvén waves for m≥2. For m=1, it is possible to achieve stabilization with conducting walls. A discussion is given of how FLR affects stabilization of the m≥2 long‐wavelength modes and of FLR stabilization of modes described in the eikonal approximation.</description><subject>70 PLASMA PHYSICS AND FUSION TECHNOLOGY</subject><subject>700107 - Fusion Energy- Plasma Research- Instabilities</subject><subject>ALFVEN WAVES</subject><subject>DISPERSION RELATIONS</subject><subject>Exact sciences and technology</subject><subject>HOT PLASMA</subject><subject>HYDROMAGNETIC WAVES</subject><subject>Magnetic confinement and equilibrium</subject><subject>MAGNETIC MIRRORS</subject><subject>OPEN PLASMA DEVICES</subject><subject>Physics</subject><subject>Physics of gases, plasmas and electric discharges</subject><subject>Physics of plasmas and electric discharges</subject><subject>PLASMA</subject><subject>PLASMA PRESSURE</subject><subject>PRECESSION</subject><subject>STABILIZATION</subject><subject>TANDEM MIRRORS</subject><subject>THERMONUCLEAR DEVICES</subject><issn>0031-9171</issn><issn>2163-4998</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1985</creationdate><recordtype>article</recordtype><recordid>eNp10E1KAzEUB_AgCtYqeIQgLnQxNW-SzCTLUvwoFNzoenjNJHSkzZQkbXHnEbyG5_AmnsSpI-5cPXj8eB9_Qs6BjYAV_AZGqpAgxQEZ5FDwTGitDsmAMQ6ZhhKOyUmML4zlAgQfEJz6ZAOa1LSeto6mhaXrYI2Nsevgku5wa-muSQvqgrVfb-_zduNrDK90vHTbzw9P4yY4NPZHRtp4mtDXdkVXTQhtiKfkyOEy2rPfOiTPd7dPk4ds9ng_nYxnmeEgUyYRahTCgDIlKJS1MlDkQjCpilLPC8y5VGXObamlq5UthMprYHyujcMcGR-Si35uG1NTRdMkaxam9d6aVEmthNRlh656ZEIbY7CuWodm1X1TAav2-VVQ9fl19LKna4wGly6gN03885p1FwjVseue7TfiPsb_R34Dk1t9wg</recordid><startdate>198501</startdate><enddate>198501</enddate><creator>Berk, H. L.</creator><creator>Kaiser, T. B.</creator><general>American Institute of Physics</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>OTOTI</scope></search><sort><creationdate>198501</creationdate><title>Interaction of the precessional wave with free‐boundary Alfvén surface waves in tandem mirrors</title><author>Berk, H. L. ; Kaiser, T. B.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c315t-5a1da44c18c718a5d8c16244058679b6a2358723e795fd8e6482d103b9cfa2a03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1985</creationdate><topic>70 PLASMA PHYSICS AND FUSION TECHNOLOGY</topic><topic>700107 - Fusion Energy- Plasma Research- Instabilities</topic><topic>ALFVEN WAVES</topic><topic>DISPERSION RELATIONS</topic><topic>Exact sciences and technology</topic><topic>HOT PLASMA</topic><topic>HYDROMAGNETIC WAVES</topic><topic>Magnetic confinement and equilibrium</topic><topic>MAGNETIC MIRRORS</topic><topic>OPEN PLASMA DEVICES</topic><topic>Physics</topic><topic>Physics of gases, plasmas and electric discharges</topic><topic>Physics of plasmas and electric discharges</topic><topic>PLASMA</topic><topic>PLASMA PRESSURE</topic><topic>PRECESSION</topic><topic>STABILIZATION</topic><topic>TANDEM MIRRORS</topic><topic>THERMONUCLEAR DEVICES</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Berk, H. L.</creatorcontrib><creatorcontrib>Kaiser, T. B.</creatorcontrib><creatorcontrib>Institute for Fusion Studies, University of Texas at Austin, Austin, Texas 78712</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>OSTI.GOV</collection><jtitle>Phys. Fluids; (United States)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Berk, H. L.</au><au>Kaiser, T. B.</au><aucorp>Institute for Fusion Studies, University of Texas at Austin, Austin, Texas 78712</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Interaction of the precessional wave with free‐boundary Alfvén surface waves in tandem mirrors</atitle><jtitle>Phys. Fluids; (United States)</jtitle><date>1985-01</date><risdate>1985</risdate><volume>28</volume><issue>1</issue><spage>345</spage><epage>351</epage><pages>345-351</pages><issn>0031-9171</issn><eissn>2163-4998</eissn><coden>PFLDAS</coden><abstract>A symmetric tandem mirror plugging a long central cell, with plugs stabilized by a hot‐component plasma is considered. The system is taken to have a flat pressure profile with a steep edge gradient. The interaction of the precessional mode with Alfvén waves generated in the central cell is then considered. This analysis is noneikonal and is valid when mΔ/r<1 (m is the azimuthal mode number, r the plasma radius, and Δ the radial gradient scale length) for long‐wavelength radial modes. Without finite‐Larmor‐radius (FLR) effects the precessional mode is always destabilized by the excitation of the Alfvén waves for m≥2. For m=1, it is possible to achieve stabilization with conducting walls. A discussion is given of how FLR affects stabilization of the m≥2 long‐wavelength modes and of FLR stabilization of modes described in the eikonal approximation.</abstract><cop>Woodbury, NY</cop><pub>American Institute of Physics</pub><doi>10.1063/1.865154</doi><tpages>7</tpages></addata></record> |
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| identifier | ISSN: 0031-9171 |
| ispartof | Phys. Fluids; (United States), 1985-01, Vol.28 (1), p.345-351 |
| issn | 0031-9171 2163-4998 |
| language | eng |
| recordid | cdi_pascalfrancis_primary_9064848 |
| source | Alma/SFX Local Collection |
| subjects | 70 PLASMA PHYSICS AND FUSION TECHNOLOGY 700107 - Fusion Energy- Plasma Research- Instabilities ALFVEN WAVES DISPERSION RELATIONS Exact sciences and technology HOT PLASMA HYDROMAGNETIC WAVES Magnetic confinement and equilibrium MAGNETIC MIRRORS OPEN PLASMA DEVICES Physics Physics of gases, plasmas and electric discharges Physics of plasmas and electric discharges PLASMA PLASMA PRESSURE PRECESSION STABILIZATION TANDEM MIRRORS THERMONUCLEAR DEVICES |
| title | Interaction of the precessional wave with free‐boundary Alfvén surface waves in tandem mirrors |
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