Influence of the anode processes on discharges driven by thermionic emission

The influence of electron reflection and secondary electron emission due to electron impact from the anode on discharges driven by thermionic emission is studied by the self-consistent one-dimensional particle-in-cell Monte Carlo collisions model. Two regimes are considered. In the first regime, the...

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Veröffentlicht in:	Physics of plasmas 2015-07, Vol.22 (7)
1. Verfasser:	Levko, Dmitry
Format:	Artikel
Sprache:	eng
Schlagworte:	70 PLASMA PHYSICS AND FUSION TECHNOLOGY ANODES Computer simulation Discharge ELECTRIC DISCHARGES Electric potential ELECTRON EMISSION ELECTRONS Emission analysis MONTE CARLO METHOD ONE-DIMENSIONAL CALCULATIONS Particle in cell technique PLASMA Plasma physics REFLECTION Sheaths Stability THERMIONIC EMISSION TWO-STREAM INSTABILITY
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creator	Levko, Dmitry
description	The influence of electron reflection and secondary electron emission due to electron impact from the anode on discharges driven by thermionic emission is studied by the self-consistent one-dimensional particle-in-cell Monte Carlo collisions model. Two regimes are considered. In the first regime, the two-stream instability is excited and large anode sheath potential is obtained. It is found that in this regime, the reflected electrons play a significant role. In the second regime, the instability is not excited and the anode sheath potential is small. The dominant anode process in this regime is the secondary electron emission. It is shown that in both regimes, the anode processes significantly influence the plasma parameters.
doi_str_mv	10.1063/1.4923463
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Two regimes are considered. In the first regime, the two-stream instability is excited and large anode sheath potential is obtained. It is found that in this regime, the reflected electrons play a significant role. In the second regime, the instability is not excited and the anode sheath potential is small. The dominant anode process in this regime is the secondary electron emission. It is shown that in both regimes, the anode processes significantly influence the plasma parameters.</description><identifier>ISSN: 1070-664X</identifier><identifier>EISSN: 1089-7674</identifier><identifier>DOI: 10.1063/1.4923463</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>70 PLASMA PHYSICS AND FUSION TECHNOLOGY ; ANODES ; Computer simulation ; Discharge ; ELECTRIC DISCHARGES ; Electric potential ; ELECTRON EMISSION ; ELECTRONS ; Emission analysis ; MONTE CARLO METHOD ; ONE-DIMENSIONAL CALCULATIONS ; Particle in cell technique ; PLASMA ; Plasma physics ; REFLECTION ; Sheaths ; Stability ; THERMIONIC EMISSION ; TWO-STREAM INSTABILITY</subject><ispartof>Physics of plasmas, 2015-07, Vol.22 (7)</ispartof><rights>2015 AIP Publishing LLC.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c285t-5287a7682a82cd4d1e7c7b575c5ce6911afe649f43eb87d18a0eef1050cfe2683</citedby><cites>FETCH-LOGICAL-c285t-5287a7682a82cd4d1e7c7b575c5ce6911afe649f43eb87d18a0eef1050cfe2683</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,776,780,881,27903,27904</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/22490987$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Levko, Dmitry</creatorcontrib><title>Influence of the anode processes on discharges driven by thermionic emission</title><title>Physics of plasmas</title><description>The influence of electron reflection and secondary electron emission due to electron impact from the anode on discharges driven by thermionic emission is studied by the self-consistent one-dimensional particle-in-cell Monte Carlo collisions model. Two regimes are considered. In the first regime, the two-stream instability is excited and large anode sheath potential is obtained. It is found that in this regime, the reflected electrons play a significant role. In the second regime, the instability is not excited and the anode sheath potential is small. The dominant anode process in this regime is the secondary electron emission. It is shown that in both regimes, the anode processes significantly influence the plasma parameters.</description><subject>70 PLASMA PHYSICS AND FUSION TECHNOLOGY</subject><subject>ANODES</subject><subject>Computer simulation</subject><subject>Discharge</subject><subject>ELECTRIC DISCHARGES</subject><subject>Electric potential</subject><subject>ELECTRON EMISSION</subject><subject>ELECTRONS</subject><subject>Emission analysis</subject><subject>MONTE CARLO METHOD</subject><subject>ONE-DIMENSIONAL CALCULATIONS</subject><subject>Particle in cell technique</subject><subject>PLASMA</subject><subject>Plasma physics</subject><subject>REFLECTION</subject><subject>Sheaths</subject><subject>Stability</subject><subject>THERMIONIC EMISSION</subject><subject>TWO-STREAM INSTABILITY</subject><issn>1070-664X</issn><issn>1089-7674</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNpFkEtLAzEUhYMoWKsL_8GAKxdTczN5zVKKj0LBjYK7kGZubEqb1GQq9N87QwVX91z4OJxzCLkFOgMqmweY8ZY1XDZnZAJUt7WSip-PWtFaSv55Sa5K2VBKuRR6QpaL6LcHjA6r5Kt-jZWNqcNqn5PDUrBUKVZdKG5t89fwdTn8YKxWx5HNu5BicBXuQimDvCYX3m4L3vzdKfl4fnqfv9bLt5fF_HFZO6ZFXwumlVVSM6uZ63gHqJxaCSWccChbAOtR8tbzBldadaAtRfRABXUemdTNlNydfFPpgyku9OjWLsWIrjeM8Za2Wv1TQ5fvA5bebNIhxyGYYcA4gAAYve5PlMuplIze7HPY2Xw0QM04qQHzN2nzCz_EZ7U</recordid><startdate>20150701</startdate><enddate>20150701</enddate><creator>Levko, Dmitry</creator><general>American Institute of Physics</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><scope>OTOTI</scope></search><sort><creationdate>20150701</creationdate><title>Influence of the anode processes on discharges driven by thermionic emission</title><author>Levko, Dmitry</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c285t-5287a7682a82cd4d1e7c7b575c5ce6911afe649f43eb87d18a0eef1050cfe2683</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>70 PLASMA PHYSICS AND FUSION TECHNOLOGY</topic><topic>ANODES</topic><topic>Computer simulation</topic><topic>Discharge</topic><topic>ELECTRIC DISCHARGES</topic><topic>Electric potential</topic><topic>ELECTRON EMISSION</topic><topic>ELECTRONS</topic><topic>Emission analysis</topic><topic>MONTE CARLO METHOD</topic><topic>ONE-DIMENSIONAL CALCULATIONS</topic><topic>Particle in cell technique</topic><topic>PLASMA</topic><topic>Plasma physics</topic><topic>REFLECTION</topic><topic>Sheaths</topic><topic>Stability</topic><topic>THERMIONIC EMISSION</topic><topic>TWO-STREAM INSTABILITY</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Levko, Dmitry</creatorcontrib><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>OSTI.GOV</collection><jtitle>Physics of plasmas</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Levko, Dmitry</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Influence of the anode processes on discharges driven by thermionic emission</atitle><jtitle>Physics of plasmas</jtitle><date>2015-07-01</date><risdate>2015</risdate><volume>22</volume><issue>7</issue><issn>1070-664X</issn><eissn>1089-7674</eissn><abstract>The influence of electron reflection and secondary electron emission due to electron impact from the anode on discharges driven by thermionic emission is studied by the self-consistent one-dimensional particle-in-cell Monte Carlo collisions model. Two regimes are considered. In the first regime, the two-stream instability is excited and large anode sheath potential is obtained. It is found that in this regime, the reflected electrons play a significant role. In the second regime, the instability is not excited and the anode sheath potential is small. The dominant anode process in this regime is the secondary electron emission. It is shown that in both regimes, the anode processes significantly influence the plasma parameters.</abstract><cop>Melville</cop><pub>American Institute of Physics</pub><doi>10.1063/1.4923463</doi></addata></record>
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subjects	70 PLASMA PHYSICS AND FUSION TECHNOLOGY ANODES Computer simulation Discharge ELECTRIC DISCHARGES Electric potential ELECTRON EMISSION ELECTRONS Emission analysis MONTE CARLO METHOD ONE-DIMENSIONAL CALCULATIONS Particle in cell technique PLASMA Plasma physics REFLECTION Sheaths Stability THERMIONIC EMISSION TWO-STREAM INSTABILITY
title	Influence of the anode processes on discharges driven by thermionic emission
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