Skip navigation
Skip navigation

Core magnetic islands and plasma confinement in the H-1NF heliac

Kumar, Santhosh T. A.; Blackwell, Boyd D.; Howard, John; Harris, Jeffrey H.

Description

Plasma confinement in the vicinity of vacuum magnetic islands near the magnetic axis in the H-1NF heliac [S. M. Hamberger et al., Fusion Technol.17, 123 (1990)] has been experimentally studied in a low temperature argon plasma. Experimental results indicate that, under favorable conditions, these low order (m=2)islands near the core of the plasma serve as “pockets” of higher electron density. This results in significant profile modifications including enhancement of the core radial electric...[Show more]

dc.contributor.authorKumar, Santhosh T. A.
dc.contributor.authorBlackwell, Boyd D.
dc.contributor.authorHoward, John
dc.contributor.authorHarris, Jeffrey H.
dc.date.accessioned2015-12-08T23:52:22Z
dc.date.available2015-12-08T23:52:22Z
dc.identifier.issn1070-664X
dc.identifier.urihttp://hdl.handle.net/1885/38437
dc.description.abstractPlasma confinement in the vicinity of vacuum magnetic islands near the magnetic axis in the H-1NF heliac [S. M. Hamberger et al., Fusion Technol.17, 123 (1990)] has been experimentally studied in a low temperature argon plasma. Experimental results indicate that, under favorable conditions, these low order (m=2)islands near the core of the plasma serve as “pockets” of higher electron density. This results in significant profile modifications including enhancement of the core radial electric field to a large positive value, possibly through an electron-root ambipolar condition. The characteristics of islands are found to be dependent on the plasma collisionality and island width.
dc.description.sponsorshipThis research was supported in part by the Australian Research Council Grant No. DP0344361 and the U.S. Department of Energy under Contract No. DE-AC05- 00OR22725 with UT-Battelle, LLC.
dc.publisherAmerican Institute of Physics (AIP)
dc.rightshttp://www.sherpa.ac.uk/romeo/issn/1070-664X..."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 Physics of Plasmas and may be found at https://doi.org/10.1063/1.3474946
dc.sourcePhysics of Plasmas
dc.subjectKeywords: Ambipolar; Argon plasmas; Electron densities; Favorable conditions; Low order; Low temperatures; Magnetic axis; Magnetic island; Plasma collisionality; Positive value; Profile modification; Radial electric field; Argon; Electric fields; Plasma confinement
dc.titleCore magnetic islands and plasma confinement in the H-1NF heliac
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume17
dc.date.issued2010
local.identifier.absfor020204
local.identifier.ariespublicationu4735977xPUB39
local.publisher.urlhttps://www.aip.org/
local.type.statusPublished Version
local.contributor.affiliationKumar, Santhosh, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Plasma Research Laboratory, The Australian National University
local.contributor.affiliationBlackwell, Boyd, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Plasma Research Laboratory, The Australian National University
local.contributor.affiliationHoward, John, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Plasma Research Laboratory, The Australian National University
local.contributor.affiliationHarris, Jeffrey, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Plasma Research Laboratory, The Australian National University
dc.relationhttp://purl.org/au-research/grants/arc/DP0344361
local.bibliographicCitation.issue8
local.bibliographicCitation.startpage082503
local.bibliographicCitation.lastpage8
local.identifier.doi10.1063/1.3474946
dc.date.updated2016-02-24T11:22:22Z
local.identifier.scopusID2-s2.0-77956332095
local.identifier.thomsonID000281906300032
CollectionsANU Research Publications

Download

File Description SizeFormat Image
01_Kumar_Core_magnetic_islands_and_2010.pdfPublished Version1.19 MBAdobe 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