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Observations of a mode transition in a hydrogen hollow cathode discharge using phase resolved optical emission spectroscopy

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dc.contributor.authorDixon, Sam
dc.contributor.authorCharles, Christine
dc.contributor.authorDedrick, James
dc.contributor.authorGans, Timo
dc.contributor.authorO'Connell, Deborah
dc.contributor.authorBoswell, Rod
dc.date.accessioned2015-12-07T23:37:14Z
dc.date.available2015-12-07T23:37:14Z
dc.date.issued2014-07-09
dc.date.updated2015-12-08T10:46:03Z
dc.description.abstractTwo distinct operational modes are observed in a radio frequency (rf) low pressure hydrogen hollow cathode discharge. The mode transition is characterised by a change in total light emission and differing expansion structures. An intensified CCD camera is used to make phase resolved images of Balmer α emission from the discharge. The low emission mode is consistent with a typical γ discharge, and appears to be driven by secondary electrons ejected from the cathode surface. The bright mode displays characteristics common to an inductive discharge, including increased optical emission, power factor, and temperature of the H2 gas. The bright mode precipitates the formation of a stationary shock in the expansion, observed as a dark region adjacent to the source-chamber interface.
dc.description.sponsorshipThis research was partially funded by the Australian Research Council Discovery Project (DP1096653).en_AU
dc.identifier.issn0003-6951en_AU
dc.identifier.urihttp://hdl.handle.net/1885/28542
dc.publisherAmerican Institute of Physics (AIP)
dc.relationhttp://purl.org/au-research/grants/arc/DP1096653
dc.rightshttp://www.sherpa.ac.uk/romeo/issn/0003-6951..."Publishers version/PDF may be used on author's personal website, institutional website or institutional repository" from SHERPA/RoMEO site (as at 8/12/15). Copyright 2014 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters and may be found at https://doi.org/10.1063/1.4889916
dc.sourceApplied Physics Letters
dc.titleObservations of a mode transition in a hydrogen hollow cathode discharge using phase resolved optical emission spectroscopy
dc.typeJournal article
local.bibliographicCitation.issue1en_AU
local.bibliographicCitation.startpage014104en_AU
local.contributor.affiliationDixon, Sam, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Plasma Research Laboratory, The Australian National Universityen_AU
local.contributor.affiliationCharles, Christine, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Plasma Research Laboratory, The Australian National Universityen_AU
local.contributor.affiliationDedrick, James, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Plasma Research Laboratory, The Australian National Universityen_AU
local.contributor.affiliationGans, T, University of York, United Kingdomen_AU
local.contributor.affiliationO'Connell, D, University of York, United Kingdomen_AU
local.contributor.affiliationBoswell, Roderick, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Plasma Research Laboratory, The Australian National Universityen_AU
local.contributor.authoruidu4025692en_AU
local.description.notesImported from ARIESen_AU
local.identifier.absfor020204en_AU
local.identifier.ariespublicationu4695161xPUB149en_AU
local.identifier.citationvolume105en_AU
local.identifier.doi10.1063/1.4889916en_AU
local.identifier.scopusID2-s2.0-84908538446
local.identifier.thomsonID000339664900106
local.publisher.urlhttps://www.aip.org/en_AU
local.type.statusPublished Versionen_AU

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