Space charge influence on the angle of conical spikes developing on a liquid-metal anode.
Identifieur interne : 002144 ( Main/Exploration ); précédent : 002143; suivant : 002145Space charge influence on the angle of conical spikes developing on a liquid-metal anode.
Auteurs : RBID : pubmed:18643186Abstract
The influence of the space charge of ions emitted from the surface of a conical spike on its shape has been studied. The problem of the calculation of the spatial distributions of the electric field, ion velocity field, and the space charge density near the cone tip has been reduced to the analysis of a system of ordinary differential equations. As a result of numerical solution of these equations, the criterion for the balance of the capillary and electrostatic forces on the conic surface of a liquid-metal anode has been determined. It has allowed us to relate the electrical current flowing through the system, the applied potential difference, and the cone angle. We have compared the results of our calculations with available experimental data concerning emission from the surface of pure liquid gallium, indium, tin, and some liquid alloys, such as Au+Si , Co+Ge , and Au+Ge . On the basis of the proposed model, explanations have been given for a number of specific features of the emissive behavior of different systems.
PubMed: 18643186
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Space charge influence on the angle of conical spikes developing on a liquid-metal anode.</title><author><name sortKey="Boltachev, G Sh" uniqKey="Boltachev G">G Sh Boltachev</name><affiliation wicri:level="1"><nlm:affiliation>Institute of Electrophysics, Russian Academy of Sciences, Ural Division, 106 Amundsen Street, 620016 Ekaterinburg, Russia. grey@iep.uran.ru</nlm:affiliation><country xml:lang="fr">Russie</country><wicri:regionArea>Institute of Electrophysics, Russian Academy of Sciences, Ural Division, 106 Amundsen Street, 620016 Ekaterinburg</wicri:regionArea></affiliation></author><author><name sortKey="Zubarev, N M" uniqKey="Zubarev N">N M Zubarev</name></author><author><name sortKey="Zubareva, O V" uniqKey="Zubareva O">O V Zubareva</name></author></titleStmt><publicationStmt><date when="2008">2008</date><idno type="RBID">pubmed:18643186</idno><idno type="pmid">18643186</idno><idno type="wicri:Area/Main/Corpus">002301</idno><idno type="wicri:Area/Main/Curation">002301</idno><idno type="wicri:Area/Main/Exploration">002144</idno></publicationStmt></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The influence of the space charge of ions emitted from the surface of a conical spike on its shape has been studied. The problem of the calculation of the spatial distributions of the electric field, ion velocity field, and the space charge density near the cone tip has been reduced to the analysis of a system of ordinary differential equations. As a result of numerical solution of these equations, the criterion for the balance of the capillary and electrostatic forces on the conic surface of a liquid-metal anode has been determined. It has allowed us to relate the electrical current flowing through the system, the applied potential difference, and the cone angle. We have compared the results of our calculations with available experimental data concerning emission from the surface of pure liquid gallium, indium, tin, and some liquid alloys, such as Au+Si , Co+Ge , and Au+Ge . On the basis of the proposed model, explanations have been given for a number of specific features of the emissive behavior of different systems.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="PubMed-not-MEDLINE"><PMID Version="1">18643186</PMID><DateCreated><Year>2008</Year><Month>07</Month><Day>22</Day></DateCreated><DateCompleted><Year>2008</Year><Month>08</Month><Day>04</Day></DateCompleted><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Print">1539-3755</ISSN><JournalIssue CitedMedium="Print"><Volume>77</Volume><Issue>5 Pt 2</Issue><PubDate><Year>2008</Year><Month>May</Month></PubDate></JournalIssue><Title>Physical review. E, Statistical, nonlinear, and soft matter physics</Title><ISOAbbreviation>Phys Rev E Stat Nonlin Soft Matter Phys</ISOAbbreviation></Journal><ArticleTitle>Space charge influence on the angle of conical spikes developing on a liquid-metal anode.</ArticleTitle><Pagination><MedlinePgn>056607</MedlinePgn></Pagination><Abstract><AbstractText>The influence of the space charge of ions emitted from the surface of a conical spike on its shape has been studied. The problem of the calculation of the spatial distributions of the electric field, ion velocity field, and the space charge density near the cone tip has been reduced to the analysis of a system of ordinary differential equations. As a result of numerical solution of these equations, the criterion for the balance of the capillary and electrostatic forces on the conic surface of a liquid-metal anode has been determined. It has allowed us to relate the electrical current flowing through the system, the applied potential difference, and the cone angle. We have compared the results of our calculations with available experimental data concerning emission from the surface of pure liquid gallium, indium, tin, and some liquid alloys, such as Au+Si , Co+Ge , and Au+Ge . On the basis of the proposed model, explanations have been given for a number of specific features of the emissive behavior of different systems.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Boltachev</LastName><ForeName>G Sh</ForeName><Initials>GSh</Initials><Affiliation>Institute of Electrophysics, Russian Academy of Sciences, Ural Division, 106 Amundsen Street, 620016 Ekaterinburg, Russia. grey@iep.uran.ru</Affiliation></Author><Author ValidYN="Y"><LastName>Zubarev</LastName><ForeName>N M</ForeName><Initials>NM</Initials></Author><Author ValidYN="Y"><LastName>Zubareva</LastName><ForeName>O V</ForeName><Initials>OV</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType>Journal Article</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2008</Year><Month>05</Month><Day>22</Day></ArticleDate></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Phys Rev E Stat Nonlin Soft Matter Phys</MedlineTA><NlmUniqueID>101136452</NlmUniqueID><ISSNLinking>1539-3755</ISSNLinking></MedlineJournalInfo></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="received"><Year>2007</Year><Month>6</Month><Day>20</Day></PubMedPubDate><PubMedPubDate PubStatus="revised"><Year>2008</Year><Month>2</Month><Day>7</Day></PubMedPubDate><PubMedPubDate PubStatus="aheadofprint"><Year>2008</Year><Month>5</Month><Day>22</Day></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2008</Year><Month>7</Month><Day>23</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2008</Year><Month>7</Month><Day>23</Day><Hour>9</Hour><Minute>1</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2008</Year><Month>7</Month><Day>23</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">18643186</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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