Expansion of a multicomponent current-carrying plasma jet into vacuum
An expression for the ion−ion coupling in a multicomponent plasma jet is derived for an arbitrary ratio between the thermal and relative velocities of the components. The obtained expression is used to solve the problem on the expansion of a current-carrying plasma microjet emitted from the cathode...
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| Veröffentlicht in: | Plasma physics reports 2017-03, Vol.43 (3), p.298-306 |
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| creator | Krasov, V. I. Paperny, V. L. |
| description | An expression for the ion−ion coupling in a multicomponent plasma jet is derived for an arbitrary ratio between the thermal and relative velocities of the components. The obtained expression is used to solve the problem on the expansion of a current-carrying plasma microjet emitted from the cathode surface into vacuum. Two types of plasmas with two ion components are analyzed: (i) plasma in which the ion components of equal masses are in the charge states
Z
1
= +1 and
Z
2
= +2 and (ii) plasma with ions in equal charge states but with the mass ratio
m
1
/
m
2
= 2. It is shown that, for such plasmas, the difference between the velocities of the plasma components remains substantial (about 10% of the average jet velocity in case (i) and 15% in case (ii)) at distances of several centimeters from the emission center, where it can be measured experimentally, provided that its initial value at the emitting cathode surface exceeds a certain threshold. This effect is investigated as a function of the mass ratio and charge states of the ion components. |
| doi_str_mv | 10.1134/S1063780X17030072 |
| format | Article |
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Z
1
= +1 and
Z
2
= +2 and (ii) plasma with ions in equal charge states but with the mass ratio
m
1
/
m
2
= 2. It is shown that, for such plasmas, the difference between the velocities of the plasma components remains substantial (about 10% of the average jet velocity in case (i) and 15% in case (ii)) at distances of several centimeters from the emission center, where it can be measured experimentally, provided that its initial value at the emitting cathode surface exceeds a certain threshold. This effect is investigated as a function of the mass ratio and charge states of the ion components.</description><identifier>ISSN: 1063-780X</identifier><identifier>EISSN: 1562-6938</identifier><identifier>DOI: 10.1134/S1063780X17030072</identifier><language>eng</language><publisher>Moscow: Pleiades Publishing</publisher><subject>70 PLASMA PHYSICS AND FUSION TECHNOLOGY ; Atomic ; CATHODES ; CHARGE STATES ; Current carrying plasmas ; CURRENTS ; DISTANCE ; EMISSION ; IONS ; MASS ; Molecular ; Optical and Plasma Physics ; Physics ; Physics and Astronomy ; Plasma ; Plasma Dynamics ; PLASMA JETS ; SURFACES ; Vacuum effects</subject><ispartof>Plasma physics reports, 2017-03, Vol.43 (3), p.298-306</ispartof><rights>Pleiades Publishing, Ltd. 2017</rights><rights>Copyright Springer Science & Business Media 2017</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c344t-74f55d8f4eab12cd416ea5879fbe1e88d37fc214504907ba0cc1ddabf1c44fd3</citedby><cites>FETCH-LOGICAL-c344t-74f55d8f4eab12cd416ea5879fbe1e88d37fc214504907ba0cc1ddabf1c44fd3</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/S1063780X17030072$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1134/S1063780X17030072$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>230,314,780,784,885,27924,27925,41488,42557,51319</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/22614017$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Krasov, V. I.</creatorcontrib><creatorcontrib>Paperny, V. L.</creatorcontrib><title>Expansion of a multicomponent current-carrying plasma jet into vacuum</title><title>Plasma physics reports</title><addtitle>Plasma Phys. Rep</addtitle><description>An expression for the ion−ion coupling in a multicomponent plasma jet is derived for an arbitrary ratio between the thermal and relative velocities of the components. The obtained expression is used to solve the problem on the expansion of a current-carrying plasma microjet emitted from the cathode surface into vacuum. Two types of plasmas with two ion components are analyzed: (i) plasma in which the ion components of equal masses are in the charge states
Z
1
= +1 and
Z
2
= +2 and (ii) plasma with ions in equal charge states but with the mass ratio
m
1
/
m
2
= 2. It is shown that, for such plasmas, the difference between the velocities of the plasma components remains substantial (about 10% of the average jet velocity in case (i) and 15% in case (ii)) at distances of several centimeters from the emission center, where it can be measured experimentally, provided that its initial value at the emitting cathode surface exceeds a certain threshold. This effect is investigated as a function of the mass ratio and charge states of the ion components.</description><subject>70 PLASMA PHYSICS AND FUSION TECHNOLOGY</subject><subject>Atomic</subject><subject>CATHODES</subject><subject>CHARGE STATES</subject><subject>Current carrying plasmas</subject><subject>CURRENTS</subject><subject>DISTANCE</subject><subject>EMISSION</subject><subject>IONS</subject><subject>MASS</subject><subject>Molecular</subject><subject>Optical and Plasma Physics</subject><subject>Physics</subject><subject>Physics and Astronomy</subject><subject>Plasma</subject><subject>Plasma Dynamics</subject><subject>PLASMA JETS</subject><subject>SURFACES</subject><subject>Vacuum effects</subject><issn>1063-780X</issn><issn>1562-6938</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNp1kEtLxDAUhYMoOI7-AHcF19XcNK8uZRgfILhwFu5CmiZjh2lSk1Scf2-HERTE1blwvnO4HIQuAV8DVPTmBTCvhMSvIHCFsSBHaAaMk5LXlTye7sku9_4pOktpgzGAZDBDy-XnoH3qgi-CK3TRj9vcmdAPwVufCzPGOGlpdIy7zq-LYatTr4uNzUXncyg-tBnH_hydOL1N9uJb52h1t1wtHsqn5_vHxe1TaSpKcymoY6yVjlrdADEtBW41k6J2jQUrZVsJZwhQhmmNRaOxMdC2unFgKHVtNUdXh9qQcqeS6bI1byZ4b01WhHCgGMQPNcTwPtqU1SaM0U9_KZCSEc55zSYKDpSJIaVonRpi1-u4U4DVflL1Z9IpQw6ZNLF-beOv5n9DX79SeKE</recordid><startdate>20170301</startdate><enddate>20170301</enddate><creator>Krasov, V. I.</creator><creator>Paperny, V. L.</creator><general>Pleiades Publishing</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>OTOTI</scope></search><sort><creationdate>20170301</creationdate><title>Expansion of a multicomponent current-carrying plasma jet into vacuum</title><author>Krasov, V. I. ; Paperny, V. L.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c344t-74f55d8f4eab12cd416ea5879fbe1e88d37fc214504907ba0cc1ddabf1c44fd3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>70 PLASMA PHYSICS AND FUSION TECHNOLOGY</topic><topic>Atomic</topic><topic>CATHODES</topic><topic>CHARGE STATES</topic><topic>Current carrying plasmas</topic><topic>CURRENTS</topic><topic>DISTANCE</topic><topic>EMISSION</topic><topic>IONS</topic><topic>MASS</topic><topic>Molecular</topic><topic>Optical and Plasma Physics</topic><topic>Physics</topic><topic>Physics and Astronomy</topic><topic>Plasma</topic><topic>Plasma Dynamics</topic><topic>PLASMA JETS</topic><topic>SURFACES</topic><topic>Vacuum effects</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Krasov, V. I.</creatorcontrib><creatorcontrib>Paperny, V. L.</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>Krasov, V. I.</au><au>Paperny, V. L.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Expansion of a multicomponent current-carrying plasma jet into vacuum</atitle><jtitle>Plasma physics reports</jtitle><stitle>Plasma Phys. Rep</stitle><date>2017-03-01</date><risdate>2017</risdate><volume>43</volume><issue>3</issue><spage>298</spage><epage>306</epage><pages>298-306</pages><issn>1063-780X</issn><eissn>1562-6938</eissn><abstract>An expression for the ion−ion coupling in a multicomponent plasma jet is derived for an arbitrary ratio between the thermal and relative velocities of the components. The obtained expression is used to solve the problem on the expansion of a current-carrying plasma microjet emitted from the cathode surface into vacuum. Two types of plasmas with two ion components are analyzed: (i) plasma in which the ion components of equal masses are in the charge states
Z
1
= +1 and
Z
2
= +2 and (ii) plasma with ions in equal charge states but with the mass ratio
m
1
/
m
2
= 2. It is shown that, for such plasmas, the difference between the velocities of the plasma components remains substantial (about 10% of the average jet velocity in case (i) and 15% in case (ii)) at distances of several centimeters from the emission center, where it can be measured experimentally, provided that its initial value at the emitting cathode surface exceeds a certain threshold. This effect is investigated as a function of the mass ratio and charge states of the ion components.</abstract><cop>Moscow</cop><pub>Pleiades Publishing</pub><doi>10.1134/S1063780X17030072</doi><tpages>9</tpages></addata></record> |
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| ispartof | Plasma physics reports, 2017-03, Vol.43 (3), p.298-306 |
| issn | 1063-780X 1562-6938 |
| language | eng |
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| source | SpringerNature Journals |
| subjects | 70 PLASMA PHYSICS AND FUSION TECHNOLOGY Atomic CATHODES CHARGE STATES Current carrying plasmas CURRENTS DISTANCE EMISSION IONS MASS Molecular Optical and Plasma Physics Physics Physics and Astronomy Plasma Plasma Dynamics PLASMA JETS SURFACES Vacuum effects |
| title | Expansion of a multicomponent current-carrying plasma jet into vacuum |
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