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Motional Stark effect diagnostics for KSTAR

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dc.contributor.authorChung, Jinil
dc.contributor.authorKo, J.
dc.contributor.authorHoward, John
dc.contributor.authorMichael, Clive
dc.contributor.authorVon Nessi, Gregory
dc.contributor.authorThorman, Alex
dc.contributor.authorDe Bock, M. F. M.
dc.date.accessioned2015-12-10T22:39:11Z
dc.date.issued2014
dc.date.updated2015-12-09T10:48:48Z
dc.description.abstractThe motional Stark effect (MSE) diagnostic is used to measure the radial magnetic pitch-angle profile in neutral-beam-heated plasmas. The diagnostic relies upon the measurement of the polarization direction of Stark-split D-alpha emission from injected fast neutral atoms in a magnetic field. Measurements of the magnetic pitch angle are used with magnetic equilibrium reconstruction codes such as EFIT to calculate the safety factor in shaped plasmas. The MSE diagnostic is important for determining the shape of the q profile to optimize confinement and stability, and it has become a key element in high-performance tokamaks. For the purpose of achieving the high-performance operating region in the Korea Superconducting Tokamak Advanced Research KSTAR device, two types of methods are being studied. In KSTAR, a multichord PEM (photo-elastic modulator)-based MSE system is being developed, and an imaging MSE polarimetry system using the coherence imaging technique has been showing promising initial results during the last two KSTAR experimental campaigns in 2012 and 2013, respectively. In this paper, we describe the progress of the KSTAR MSE diagnostics.
dc.identifier.issn0374-4884
dc.identifier.urihttp://hdl.handle.net/1885/57060
dc.publisherHanguk Mulli Hakhoe
dc.sourceJournal of the Korean Physical Society
dc.titleMotional Stark effect diagnostics for KSTAR
dc.typeJournal article
local.bibliographicCitation.issue8
local.bibliographicCitation.lastpage1260
local.bibliographicCitation.startpage1257
local.contributor.affiliationChung, Jinil, National Fusion Research Centre, Korea
local.contributor.affiliationKo, J, National Fusion Research
local.contributor.affiliationHoward, John, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationMichael, Clive, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationVon Nessi, Gregory, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationThorman, Alexander, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationDe Bock, M F M, Eindhoven University of Technology
local.contributor.authoruidHoward, John, u8703175
local.contributor.authoruidMichael, Clive, u9617655
local.contributor.authoruidVon Nessi, Gregory, u4085724
local.contributor.authoruidThorman, Alexander, u4521353
local.description.embargo2037-12-31
local.description.notesImported from ARIES
local.identifier.absfor110000 - MEDICAL AND HEALTH SCIENCES
local.identifier.ariespublicationa383154xPUB386
local.identifier.citationvolume65
local.identifier.doi10.3938/jkps.65.1257
local.identifier.scopusID2-s2.0-84920148238
local.identifier.thomsonID000344918300014
local.type.statusPublished Version

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