Skip navigation
Skip navigation

Double-layer ion acceleration triggered by ion magnetization in expanding radiofrequency plasma sources

Takahashi, Kazunori; Charles, Christine; Boswell, Rod W.; Fujiwara, Tamiya

Description

Ion energy distribution functions downstream of the source exit in magnetically expanding low-pressure plasmas are experimentally investigated for four source tube diameters ranging from about 5 to 15 cm. The magnetic-field threshold corresponding to a transition from a simple expanding plasma to a double layer-containing plasma is observed to increase with a decrease in the source tube diameter. The results demonstrate that for the four geometries, the double layer and the accelerated ion beam...[Show more]

dc.contributor.authorTakahashi, Kazunori
dc.contributor.authorCharles, Christine
dc.contributor.authorBoswell, Rod W.
dc.contributor.authorFujiwara, Tamiya
dc.date.accessioned2015-12-08T23:57:47Z
dc.date.available2015-12-08T23:57:47Z
dc.identifier.issn0003-6951
dc.identifier.urihttp://hdl.handle.net/1885/38438
dc.description.abstractIon energy distribution functions downstream of the source exit in magnetically expanding low-pressure plasmas are experimentally investigated for four source tube diameters ranging from about 5 to 15 cm. The magnetic-field threshold corresponding to a transition from a simple expanding plasma to a double layer-containing plasma is observed to increase with a decrease in the source tube diameter. The results demonstrate that for the four geometries, the double layer and the accelerated ion beam form when the ion Larmour radius in the source becomes smaller than the source tube radius, i.e., when the ions become magnetized in the source tube.
dc.description.sponsorshipThis work is partially supported by a Grant-in-Aid for Young Scientists A, Grant No. 22684031, Japan. Part of this work is also supported by TEPCO Research Foundation.
dc.publisherAmerican Institute of Physics (AIP)
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 9/12/15). Copyright 2010 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/10.1063/1.3499653
dc.sourceApplied Physics Letters
dc.subjectKeywords: Beam form; Double layers; Expanding plasmas; Expanding radiofrequency plasma; Ion accelerations; Ion energy distribution functions; Low pressure plasma; Tube diameters; Distribution functions; Ion beams; Plasma sources; Tubes (components); Ions
dc.titleDouble-layer ion acceleration triggered by ion magnetization in expanding radiofrequency plasma sources
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume97
dc.date.issued2010-10-07
local.identifier.absfor020204
local.identifier.ariespublicationu4735977xPUB47
local.publisher.urlhttps://www.aip.org/
local.type.statusPublished Version
local.contributor.affiliationTakahashi, Kazunori, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Plasma Research Laboratory, The Australian National University
local.contributor.affiliationCharles, Christine, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Plasma Research Laboratory, The Australian National University
local.contributor.affiliationBoswell, Roderick, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Plasma Research Laboratory, The Australian National University
local.contributor.affiliationFujiwara, Tamiya, Iwate University, Japan
local.bibliographicCitation.issue14
local.bibliographicCitation.startpage141503
local.identifier.doi10.1063/1.3499653
local.identifier.absseo850399
dc.date.updated2016-02-24T11:22:25Z
local.identifier.scopusID2-s2.0-77958052617
local.identifier.thomsonID000282765700012
CollectionsANU Research Publications

Download

File Description SizeFormat Image
01_Takahashi_Double-layer_ion_acceleration_2010.pdfPublished Version319.66 kBAdobe PDFThumbnail


Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.

Updated:  19 May 2020/ Responsible Officer:  University Librarian/ Page Contact:  Library Systems & Web Coordinator