Orbital motion theory and operational regimes for cylindrical emissive probes

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dc.contributor.author Chen, Xin
dc.contributor.author Sánchez Arriaga, Gonzalo
dc.date.accessioned 2021-03-16T11:34:05Z
dc.date.available 2021-03-16T11:34:05Z
dc.date.issued 2017-02-07
dc.identifier.bibliographicCitation Physics of Plasmas, (2017), 24(2), 023504.
dc.identifier.issn 1070-664X
dc.identifier.uri http://hdl.handle.net/10016/32155
dc.description.abstract A full-kinetic model based on the orbital-motion theory for cylindrical emissive probes (EPs) is presented. The conservation of the distribution function, the energy, and the angular momentum for cylindrical probes immersed in collisionless and stationary plasmas is used to write the Vlasov-Poisson system as a single integro-differential equation. It describes self-consistently the electrostatic potential profile and, consequently, the current-voltage (I-V) probe characteristics. Its numerical solutions are used to identify different EP operational regimes, including orbital-motion-limited (OML)/non-OML current collection and monotonic/non-monotonic potential, in the parametric domain of probe bias and emission level. The most important features of the potential and density profiles are presented and compared with common approximations in the literature. Conventional methods to measure plasma potential with EPs are briefly revisited. A direct application of the model is to estimate plasma parameters by fitting I-V measurements to the theoretical results.
dc.description.sponsorship Work by G. Sánchez-Arriaga was supported by the Ministerio de Economía y Competitividad of Spain (Grant No. RYC-2014-15357).
dc.format.extent 9
dc.language.iso eng
dc.publisher American Institute of Physics (AIP)
dc.rights Published by AIP Publishing
dc.subject.other Partial differential equations
dc.subject.other Plasma sheaths
dc.subject.other Thermionic emission
dc.subject.other Properties of nuclei
dc.subject.other Integro-differential equation
dc.subject.other Vlasov equation
dc.subject.other Neutrals in plasma
dc.subject.other Electrostatics
dc.subject.other Current-voltage characteristic
dc.subject.other Plasma processing
dc.title Orbital motion theory and operational regimes for cylindrical emissive probes
dc.type article
dc.description.status Publicado
dc.subject.eciencia Aeronáutica
dc.identifier.doi https://doi.org/10.1063/1.4975088
dc.rights.accessRights openAccess
dc.relation.projectID Gobierno de España. RYC-2014-15357
dc.type.version publishedVersion
dc.identifier.publicationfirstpage 1
dc.identifier.publicationissue 2
dc.identifier.publicationlastpage 9
dc.identifier.publicationtitle PHYSICS OF PLASMAS
dc.identifier.publicationvolume 24
dc.identifier.uxxi AR/0000019612
dc.contributor.funder Ministerio de Economía y Competitividad (España)
dc.affiliation.dpto UC3M. Departamento de Ingeniería Aeroespacial
dc.affiliation.grupoinv UC3M. Grupo de Investigación: Equipo de Propulsión Espacial y Plasmas (EP2)
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