Role of ions in a crossed-field diode
The effect of ions in a magnetically insulated crossed-field gap is studied using a single particle orbit model, shear flow model, and particle-in-cell simulation. It is found that, in general, the presence of ions in a crossed-field gap always increases the electrons' excursion toward the anod...
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| Veröffentlicht in: | Physical review letters 2007-01, Vol.98 (1), p.015002-015002, Article 015002 |
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| container_title | Physical review letters |
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| creator | Lau, Y Y Luginsland, J W Cartwright, K L Haworth, M D |
| description | The effect of ions in a magnetically insulated crossed-field gap is studied using a single particle orbit model, shear flow model, and particle-in-cell simulation. It is found that, in general, the presence of ions in a crossed-field gap always increases the electrons' excursion toward the anode region, regardless of the location of the ions. Thus, the rate at which the electrons migrate toward the anode, which is a measure of the diode closure rate, is related to the rate at which ions are introduced into the crossed-field gap. This anode migration of electrons is unrelated to crossed-field ambipolar diffusion. The implications of these findings are explored, such as pulse shortening in relativistic magnetrons and bipolar flows in pulsed-power systems. |
| doi_str_mv | 10.1103/PhysRevLett.98.015002 |
| format | Article |
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It is found that, in general, the presence of ions in a crossed-field gap always increases the electrons' excursion toward the anode region, regardless of the location of the ions. Thus, the rate at which the electrons migrate toward the anode, which is a measure of the diode closure rate, is related to the rate at which ions are introduced into the crossed-field gap. This anode migration of electrons is unrelated to crossed-field ambipolar diffusion. The implications of these findings are explored, such as pulse shortening in relativistic magnetrons and bipolar flows in pulsed-power systems.</description><identifier>ISSN: 0031-9007</identifier><identifier>EISSN: 1079-7114</identifier><identifier>DOI: 10.1103/PhysRevLett.98.015002</identifier><identifier>PMID: 17358481</identifier><language>eng</language><publisher>United States</publisher><subject>AMBIPOLAR DIFFUSION ; ANODES ; CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ; CROSSED FIELDS ; ELECTRONS ; FLOW MODELS ; IONS ; MAGNETRONS ; POWER SYSTEMS ; RELATIVISTIC RANGE ; SIMULATION</subject><ispartof>Physical review letters, 2007-01, Vol.98 (1), p.015002-015002, Article 015002</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c335t-16e483dd491948474c0bf79c5237dba53ca2abc6dd65fe37984be25555104d173</citedby><cites>FETCH-LOGICAL-c335t-16e483dd491948474c0bf79c5237dba53ca2abc6dd65fe37984be25555104d173</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,780,784,885,2876,2877,27924,27925</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/17358481$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink><backlink>$$Uhttps://www.osti.gov/biblio/20861582$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Lau, Y Y</creatorcontrib><creatorcontrib>Luginsland, J W</creatorcontrib><creatorcontrib>Cartwright, K L</creatorcontrib><creatorcontrib>Haworth, M D</creatorcontrib><title>Role of ions in a crossed-field diode</title><title>Physical review letters</title><addtitle>Phys Rev Lett</addtitle><description>The effect of ions in a magnetically insulated crossed-field gap is studied using a single particle orbit model, shear flow model, and particle-in-cell simulation. It is found that, in general, the presence of ions in a crossed-field gap always increases the electrons' excursion toward the anode region, regardless of the location of the ions. Thus, the rate at which the electrons migrate toward the anode, which is a measure of the diode closure rate, is related to the rate at which ions are introduced into the crossed-field gap. This anode migration of electrons is unrelated to crossed-field ambipolar diffusion. The implications of these findings are explored, such as pulse shortening in relativistic magnetrons and bipolar flows in pulsed-power systems.</description><subject>AMBIPOLAR DIFFUSION</subject><subject>ANODES</subject><subject>CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS</subject><subject>CROSSED FIELDS</subject><subject>ELECTRONS</subject><subject>FLOW MODELS</subject><subject>IONS</subject><subject>MAGNETRONS</subject><subject>POWER SYSTEMS</subject><subject>RELATIVISTIC RANGE</subject><subject>SIMULATION</subject><issn>0031-9007</issn><issn>1079-7114</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><recordid>eNpNkE9Lw0AQxRdRbK1-BCUgekudye5md49S_AcFpeh5SXYnNJJmazYV-u1NbUHnMpf33sz7MXaJMEUEfve23MYFfc-p76dGTwElQHbExgjKpApRHLMxAMfUAKgRO4vxEwAwy_UpG6HiUguNY3azCA0loUrq0MakbpMicV2IkXxa1dT4xNfB0zk7qYom0sVhT9jH48P77Dmdvz69zO7nqeNc9inmJDT3Xhg0QgslHJSVMk5mXPmykNwVWVG63PtcVsSV0aKkTA6DIPzw1IRd73ND7GsbXd2TW7rQtuR6m4HOUepsUN3uVesufG0o9nZVR0dNU7QUNtEqyBQquYuTe-FvpY4qu-7qVdFtLYLdUbT_KFqj7Z7i4Ls6HNiUK_J_rgM2_gO0km3J</recordid><startdate>20070105</startdate><enddate>20070105</enddate><creator>Lau, Y Y</creator><creator>Luginsland, J W</creator><creator>Cartwright, K L</creator><creator>Haworth, M D</creator><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>OTOTI</scope></search><sort><creationdate>20070105</creationdate><title>Role of ions in a crossed-field diode</title><author>Lau, Y Y ; Luginsland, J W ; Cartwright, K L ; Haworth, M D</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c335t-16e483dd491948474c0bf79c5237dba53ca2abc6dd65fe37984be25555104d173</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>AMBIPOLAR DIFFUSION</topic><topic>ANODES</topic><topic>CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS</topic><topic>CROSSED FIELDS</topic><topic>ELECTRONS</topic><topic>FLOW MODELS</topic><topic>IONS</topic><topic>MAGNETRONS</topic><topic>POWER SYSTEMS</topic><topic>RELATIVISTIC RANGE</topic><topic>SIMULATION</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lau, Y Y</creatorcontrib><creatorcontrib>Luginsland, J W</creatorcontrib><creatorcontrib>Cartwright, K L</creatorcontrib><creatorcontrib>Haworth, M D</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>OSTI.GOV</collection><jtitle>Physical review letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lau, Y Y</au><au>Luginsland, J W</au><au>Cartwright, K L</au><au>Haworth, M D</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Role of ions in a crossed-field diode</atitle><jtitle>Physical review letters</jtitle><addtitle>Phys Rev Lett</addtitle><date>2007-01-05</date><risdate>2007</risdate><volume>98</volume><issue>1</issue><spage>015002</spage><epage>015002</epage><pages>015002-015002</pages><artnum>015002</artnum><issn>0031-9007</issn><eissn>1079-7114</eissn><abstract>The effect of ions in a magnetically insulated crossed-field gap is studied using a single particle orbit model, shear flow model, and particle-in-cell simulation. 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| source | American Physical Society Journals |
| subjects | AMBIPOLAR DIFFUSION ANODES CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS CROSSED FIELDS ELECTRONS FLOW MODELS IONS MAGNETRONS POWER SYSTEMS RELATIVISTIC RANGE SIMULATION |
| title | Role of ions in a crossed-field diode |
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