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Doppler coherence imaging of scrape-off-layer impurity flows in the HL-2A tokamak

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dc.contributor.authorLong, T
dc.contributor.authorAllcock, J S
dc.contributor.authorNie, L
dc.contributor.authorSharples, R M
dc.contributor.authorXu, M
dc.contributor.authorKe, R
dc.contributor.authorZhang, S
dc.contributor.authorSilburn, S A
dc.contributor.authorHoward, John
dc.contributor.authorYu, Y
dc.contributor.authorYuan, B
dc.contributor.authorWang, Z H
dc.contributor.authorSong, X M
dc.contributor.authorLiu, L
dc.contributor.authorDuan, X R
dc.date.accessioned2022-07-29T02:09:16Z
dc.date.available2022-07-29T02:09:16Z
dc.date.issued2020
dc.date.updated2021-08-01T08:24:33Z
dc.description.abstractA new Doppler coherence imaging spectroscopy interferometer has been developed on the HL-2A tokamak for the scrape-off-layer impurity flow measurement. Its spatial resolution is estimated to be up to ∼0.8 mm in the horizontal direction and ∼9 mm in the vertical direction, with a field of view of ∼34○. Its typical temporal resolution is about 1 ms. This salient feature allows for time-resolved 2D measurements in short-time phenomena on HL-2A, such as edge localized modes. Group delay and interference fringe pattern were calibrated with a dedicated calibration system. The robustness of group delay calibration and the feasibility of the extrapolation model for fringe pattern calibration are demonstrated. In this paper, we report the details of the optical instruments, calibration, and the initial experimental results of this Doppler coherence imaging spectroscopy interferometer.en_AU
dc.description.sponsorshipThis work was supported by the National Key R&D Program of China under Grant Nos. 2017YFE0301201, 2018YFE0309103, and 2018YFE0303100 and the National Natural Science Foundation of China under Grant Nos. 11905050, 11705052, 11875124, and U1867222. This work was also supported by the Engineering and Physical Sciences Research Council (Grant No. EP/L01663X/1) and a Royal Society International Exchanges 2015 Cost Share China award (Grant No. IE150624). This work was carried out within the framework of the EUROfusion Consortium and has received funding from the Euratom Research and Training Programme 2014–2018 under Grant Agreement No. 633053 and from the RCUK (Grant No. EP/T012250/1). The views and opinions expressed herein do not necessarily reflect those of the European Commission.en_AU
dc.format.mimetypeapplication/pdfen_AU
dc.identifier.issn0034-6748en_AU
dc.identifier.urihttp://hdl.handle.net/1885/270037
dc.language.isoen_AUen_AU
dc.provenancehttps://v2.sherpa.ac.uk/id/publication/9874..."The Published Version can be archived in an Institutional Repository" from SHERPA/RoMEO site (as at 29/07/2022).en_AU
dc.publisherAmerican Institute of Physics (AIP)en_AU
dc.rights© 2020 Author(s).en_AU
dc.sourceReview of Scientific Instrumentsen_AU
dc.titleDoppler coherence imaging of scrape-off-layer impurity flows in the HL-2A tokamaken_AU
dc.typeJournal articleen_AU
dcterms.accessRightsOpen Accessen_AU
local.bibliographicCitation.issue8en_AU
local.bibliographicCitation.lastpage083504-10en_AU
local.bibliographicCitation.startpage083504-1en_AU
local.contributor.affiliationLong, T, Southwestern Institute of Physicsen_AU
local.contributor.affiliationAllcock, J S, Durham Universityen_AU
local.contributor.affiliationNie, L, Southwestern Institute of Physicsen_AU
local.contributor.affiliationSharples, R M, Durham Universityen_AU
local.contributor.affiliationXu, M, Southwestern Institute of Physicsen_AU
local.contributor.affiliationKe, R, Southwestern Institute of Physicsen_AU
local.contributor.affiliationZhang, S, Southwestern Institute of Physicsen_AU
local.contributor.affiliationSilburn, S A, Culham Science Centreen_AU
local.contributor.affiliationHoward, John, College of Science, ANUen_AU
local.contributor.affiliationYu, Y, University of Science and Technology of Chinaen_AU
local.contributor.affiliationYuan, B, Southwestern Institute of Physicsen_AU
local.contributor.affiliationWang, Z H, Southwestern Institute of Physicsen_AU
local.contributor.affiliationSong, X M, Southwestern Institute of Physicsen_AU
local.contributor.affiliationLiu, L, Southwestern Institute of Physicsen_AU
local.contributor.affiliationDuan, X R, Southwestern Institute of Physicsen_AU
local.contributor.authoruidHoward, John, u8703175en_AU
local.description.notesImported from ARIESen_AU
local.identifier.absfor511000 - Synchrotrons and acceleratorsen_AU
local.identifier.ariespublicationa383154xPUB15159en_AU
local.identifier.citationvolume91en_AU
local.identifier.doi10.1063/5.0005609en_AU
local.identifier.scopusID2-s2.0-85089800974
local.publisher.urlhttp://rsi.aip.org/en_AU
local.type.statusPublished Versionen_AU

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