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Upstream Ionization Instability Associated with a Current-Free Double Layer

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dc.contributor.authorAanesland, Ane
dc.contributor.authorCharles, Christine
dc.contributor.authorLieberman, M
dc.contributor.authorBoswell, Roderick
dc.date.accessioned2015-12-07T22:17:32Z
dc.date.issued2006
dc.date.updated2023-10-01T07:16:22Z
dc.description.abstractA low frequency instability has been observed using various electrostatic probes in a low-pressure expanding helicon plasma. The instability is associated with the presence of a current-free double layer (DL). The frequency of the instability increases linearly with the potential drop of the DL, and simultaneous measurements show their coexistence. A theory for an upstream ionization instability has been developed, which shows that electrons accelerated through the DL increase the ionization upstream and are responsible for the observed instability. The theory is in good agreement with the experimental results.
dc.identifier.issn0031-9007
dc.identifier.urihttp://hdl.handle.net/1885/18614
dc.publisherAmerican Physical Society
dc.sourcePhysical Review Letters
dc.subjectKeywords: Electrons; Frequency stability; Helicons; Ionization; Plasma probes; Current-free double layer (DL); Ionization upstream; Low-pressure expanding helicon plasma; Potential drop; Electrostatic devices
dc.titleUpstream Ionization Instability Associated with a Current-Free Double Layer
dc.typeJournal article
local.bibliographicCitation.issue7
local.bibliographicCitation.startpage075003-1-4
local.contributor.affiliationAanesland, Ane, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationCharles, Christine, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationLieberman, M, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationBoswell, Roderick, College of Physical and Mathematical Sciences, ANU
local.contributor.authoruidAanesland, Ane, u4162172
local.contributor.authoruidCharles, Christine, u4025692
local.contributor.authoruidLieberman, M, v003579
local.contributor.authoruidBoswell, Roderick, u8000743
local.description.embargo2037-12-31
local.description.notesImported from ARIES
local.identifier.absfor020204 - Plasma Physics; Fusion Plasmas; Electrical Discharges
local.identifier.ariespublicationu4048219xPUB5
local.identifier.citationvolume97
local.identifier.doi10.1103/PhysRevLett.97.075003
local.identifier.scopusID2-s2.0-33747670070
local.identifier.thomsonID000239842100027
local.type.statusPublished Version

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