Observation of Axial Neutral-Gas Flow Reversal in an ECR Plasma
Axial neutral gas transport has been experimentally investigated in a partially ionized cylindrical plasma. The high-accuracy laser induced fluorescence spectroscopy is embraced to evaluate the absolute flow velocity of ions and neutral particles, and the axial flow velocity associated with the mass...
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| Veröffentlicht in: | Plasma and Fusion Research 2019/03/22, Vol.14, pp.1201066-1201066 |
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| container_title | Plasma and Fusion Research |
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| creator | ABE, Emika TERASAKA, Kenichiro YOSHIMURA, Shinji ARAMAKI, Mitsutoshi TANAKA, Masayoshi Y. |
| description | Axial neutral gas transport has been experimentally investigated in a partially ionized cylindrical plasma. The high-accuracy laser induced fluorescence spectroscopy is embraced to evaluate the absolute flow velocity of ions and neutral particles, and the axial flow velocity associated with the mass transport parallel to the magnetic field has been measured by changing the filling gas pressure. It has been found that the neutral gas flow is spatially non-uniform, and the axial flow reversal takes place under a certain circumstance. The experimental results indicate that non-uniformity of neutral gas flow field is generated as a consequence of the plasma-neutral coupling and the axial neutral transport plays an important role in the plasma structure formation. |
| doi_str_mv | 10.1585/pfr.14.1201066 |
| format | Article |
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The high-accuracy laser induced fluorescence spectroscopy is embraced to evaluate the absolute flow velocity of ions and neutral particles, and the axial flow velocity associated with the mass transport parallel to the magnetic field has been measured by changing the filling gas pressure. It has been found that the neutral gas flow is spatially non-uniform, and the axial flow reversal takes place under a certain circumstance. The experimental results indicate that non-uniformity of neutral gas flow field is generated as a consequence of the plasma-neutral coupling and the axial neutral transport plays an important role in the plasma structure formation.</description><identifier>ISSN: 1880-6821</identifier><identifier>EISSN: 1880-6821</identifier><identifier>DOI: 10.1585/pfr.14.1201066</identifier><language>eng</language><publisher>Nagoya: The Japan Society of Plasma Science and Nuclear Fusion Research</publisher><subject>Axial flow ; axial flow reversal ; Cylindrical plasmas ; ECR plasma ; Flow velocity ; Gas flow ; Gas pressure ; Gas transport ; Laser induced fluorescence ; laser induced fluorescence spectroscopy ; neutral gas flow ; Neutral gases ; Neutral particles ; Nonuniformity ; Plasma ; plasma-neutral coupling</subject><ispartof>Plasma and Fusion Research, 2019/03/22, Vol.14, pp.1201066-1201066</ispartof><rights>2019 by The Japan Society of Plasma Science and Nuclear Fusion Research</rights><rights>Copyright Japan Science and Technology Agency 2019</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c576t-149e7d240fafd910165eb4d9993973ac7945e217f9bed819d66c5e22d30e239d3</citedby><cites>FETCH-LOGICAL-c576t-149e7d240fafd910165eb4d9993973ac7945e217f9bed819d66c5e22d30e239d3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,1883,27924,27925</link.rule.ids></links><search><creatorcontrib>ABE, Emika</creatorcontrib><creatorcontrib>TERASAKA, Kenichiro</creatorcontrib><creatorcontrib>YOSHIMURA, Shinji</creatorcontrib><creatorcontrib>ARAMAKI, Mitsutoshi</creatorcontrib><creatorcontrib>TANAKA, Masayoshi Y.</creatorcontrib><title>Observation of Axial Neutral-Gas Flow Reversal in an ECR Plasma</title><title>Plasma and Fusion Research</title><addtitle>Plasma and Fusion Research</addtitle><description>Axial neutral gas transport has been experimentally investigated in a partially ionized cylindrical plasma. The high-accuracy laser induced fluorescence spectroscopy is embraced to evaluate the absolute flow velocity of ions and neutral particles, and the axial flow velocity associated with the mass transport parallel to the magnetic field has been measured by changing the filling gas pressure. It has been found that the neutral gas flow is spatially non-uniform, and the axial flow reversal takes place under a certain circumstance. The experimental results indicate that non-uniformity of neutral gas flow field is generated as a consequence of the plasma-neutral coupling and the axial neutral transport plays an important role in the plasma structure formation.</description><subject>Axial flow</subject><subject>axial flow reversal</subject><subject>Cylindrical plasmas</subject><subject>ECR plasma</subject><subject>Flow velocity</subject><subject>Gas flow</subject><subject>Gas pressure</subject><subject>Gas transport</subject><subject>Laser induced fluorescence</subject><subject>laser induced fluorescence spectroscopy</subject><subject>neutral gas flow</subject><subject>Neutral gases</subject><subject>Neutral particles</subject><subject>Nonuniformity</subject><subject>Plasma</subject><subject>plasma-neutral coupling</subject><issn>1880-6821</issn><issn>1880-6821</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNpNkFFLwzAUhYMoOKevPgd8bs1N0zR5kjG2KQwnQ59D1txqR9fWpJv6761sjj3dyz3fuQcOIbfAYkhVet8WPgYRA2fApDwjA1CKRVJxOD_ZL8lVCGvGpE5BDsjDYhXQ72xXNjVtCjr6Lm1Fn3HbeVtFMxvotGq-6BJ36EOvlDW1NZ2Ml_SlsmFjr8lFYauAN4c5JG_Tyev4MZovZk_j0TzK00x2EQiNmeOCFbZwGhjIFFfCaa0TnSU2z7RIkUNW6BU6BdpJmfcH7hKGPNEuGZK7_d_WN59bDJ1ZN1tf95GGc66yBARTPRXvqdw3IXgsTOvLjfU_Bpj5K8n0JRkQ5lBSbxjtDevQ2Xc84tZ3ZV7hP85OPEct_7DeYJ38Asqsb1o</recordid><startdate>20190322</startdate><enddate>20190322</enddate><creator>ABE, Emika</creator><creator>TERASAKA, Kenichiro</creator><creator>YOSHIMURA, Shinji</creator><creator>ARAMAKI, Mitsutoshi</creator><creator>TANAKA, Masayoshi Y.</creator><general>The Japan Society of Plasma Science and Nuclear Fusion Research</general><general>Japan Science and Technology Agency</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7TB</scope><scope>7U5</scope><scope>8FD</scope><scope>FR3</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20190322</creationdate><title>Observation of Axial Neutral-Gas Flow Reversal in an ECR Plasma</title><author>ABE, Emika ; TERASAKA, Kenichiro ; YOSHIMURA, Shinji ; ARAMAKI, Mitsutoshi ; TANAKA, Masayoshi Y.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c576t-149e7d240fafd910165eb4d9993973ac7945e217f9bed819d66c5e22d30e239d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Axial flow</topic><topic>axial flow reversal</topic><topic>Cylindrical plasmas</topic><topic>ECR plasma</topic><topic>Flow velocity</topic><topic>Gas flow</topic><topic>Gas pressure</topic><topic>Gas transport</topic><topic>Laser induced fluorescence</topic><topic>laser induced fluorescence spectroscopy</topic><topic>neutral gas flow</topic><topic>Neutral gases</topic><topic>Neutral particles</topic><topic>Nonuniformity</topic><topic>Plasma</topic><topic>plasma-neutral coupling</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>ABE, Emika</creatorcontrib><creatorcontrib>TERASAKA, Kenichiro</creatorcontrib><creatorcontrib>YOSHIMURA, Shinji</creatorcontrib><creatorcontrib>ARAMAKI, Mitsutoshi</creatorcontrib><creatorcontrib>TANAKA, Masayoshi Y.</creatorcontrib><collection>CrossRef</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Plasma and Fusion Research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>ABE, Emika</au><au>TERASAKA, Kenichiro</au><au>YOSHIMURA, Shinji</au><au>ARAMAKI, Mitsutoshi</au><au>TANAKA, Masayoshi Y.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Observation of Axial Neutral-Gas Flow Reversal in an ECR Plasma</atitle><jtitle>Plasma and Fusion Research</jtitle><addtitle>Plasma and Fusion Research</addtitle><date>2019-03-22</date><risdate>2019</risdate><volume>14</volume><spage>1201066</spage><epage>1201066</epage><pages>1201066-1201066</pages><issn>1880-6821</issn><eissn>1880-6821</eissn><abstract>Axial neutral gas transport has been experimentally investigated in a partially ionized cylindrical plasma. The high-accuracy laser induced fluorescence spectroscopy is embraced to evaluate the absolute flow velocity of ions and neutral particles, and the axial flow velocity associated with the mass transport parallel to the magnetic field has been measured by changing the filling gas pressure. It has been found that the neutral gas flow is spatially non-uniform, and the axial flow reversal takes place under a certain circumstance. The experimental results indicate that non-uniformity of neutral gas flow field is generated as a consequence of the plasma-neutral coupling and the axial neutral transport plays an important role in the plasma structure formation.</abstract><cop>Nagoya</cop><pub>The Japan Society of Plasma Science and Nuclear Fusion Research</pub><doi>10.1585/pfr.14.1201066</doi><tpages>1</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Plasma and Fusion Research, 2019/03/22, Vol.14, pp.1201066-1201066 |
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| source | Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; J-STAGE (Japan Science & Technology Information Aggregator, Electronic) Freely Available Titles - Japanese |
| subjects | Axial flow axial flow reversal Cylindrical plasmas ECR plasma Flow velocity Gas flow Gas pressure Gas transport Laser induced fluorescence laser induced fluorescence spectroscopy neutral gas flow Neutral gases Neutral particles Nonuniformity Plasma plasma-neutral coupling |
| title | Observation of Axial Neutral-Gas Flow Reversal in an ECR Plasma |
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