000904076 001__ 904076
000904076 005__ 20240712112902.0
000904076 0247_ $$2doi$$a10.1088/1741-4326/abf056
000904076 0247_ $$2ISSN$$a0029-5515
000904076 0247_ $$2ISSN$$a1741-4326
000904076 0247_ $$2Handle$$a2128/29933
000904076 0247_ $$2altmetric$$aaltmetric:104985066
000904076 0247_ $$2WOS$$aWOS:000645584300001
000904076 037__ $$aFZJ-2021-05646
000904076 082__ $$a620
000904076 1001_ $$0P:(DE-Juel1)188884$$aSun, H. J.$$b0$$ufzj
000904076 245__ $$aThe role of edge plasma parameters in H-mode density limit on the JET-ILW
000904076 260__ $$aVienna$$bIAEA$$c2021
000904076 3367_ $$2DRIVER$$aarticle
000904076 3367_ $$2DataCite$$aOutput Types/Journal article
000904076 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article$$bjournal$$mjournal$$s1648536468_16798
000904076 3367_ $$2BibTeX$$aARTICLE
000904076 3367_ $$2ORCID$$aJOURNAL_ARTICLE
000904076 3367_ $$00$$2EndNote$$aJournal Article
000904076 520__ $$aA study of a dataset of JET H-mode plasma with the Be/W ITER-like wall (JET-ILW) shows that reaching the edge MHD ballooning limit leads to confinement degradation. However, unlike JET plasmas with a carbon wall (JET-C), the JET-ILW plasmas stay in a marginal dithering phase for a relatively long period, associated with a higher (≈20%) H-mode density limit (HDL) than JET-C equivalents. This suggests that ITER could be operated in H-mode with higher density than the scaling based on carbon wall devices, but likely with a dithering phase plasma with lower confinement. A new, reliable estimator for JET Er, min has been derived by combining HRTS measurements of pedestal gradient and edge-SOL decay lengths. JET radial Er ETB wells are observed in the range of −15 to −60 kV m−1 in high performance H-modes, consistent with previous CXRS results in ASDEX Upgrade. The results imply that a higher positive E × B shear in the near SOL plays a role in sustaining a marginal phase in JET-ILW which leads to a higher HDL than that in JET-C. The results of the JET-ILW dataset show agreement with the Goldston finite collisionality HD model for SOL broadening at high collisionality. A hypothesis for the dithering H-mode phase is proposed: as ne,SOL increases, ν∗,SOL increases, SOL broadens, Er shear decreases, triggers L-mode; ne drops, ν∗,SOL decreases, SOL becomes narrower, and Er shear increases, triggering H-mode, resulting in a cycle of H–L–H- oscillations. For burning plasma devices, such as ITER, operating just below the MHD limit for the dithering phase could be a promising regime for maximising core density, and fusion performance while minimising plasma-material interaction. The oscillatory signal during the dithering phase could be used as a precursor of undesirable plasma performance for control purposes.
000904076 536__ $$0G:(DE-HGF)POF4-134$$a134 - Plasma-Wand-Wechselwirkung (POF4-134)$$cPOF4-134$$fPOF IV$$x0
000904076 588__ $$aDataset connected to CrossRef, Journals: juser.fz-juelich.de
000904076 7001_ $$00000-0002-0368-5514$$aGoldston, R. J.$$b1
000904076 7001_ $$0P:(DE-Juel1)130040$$aHuber, A.$$b2$$eCorresponding author
000904076 7001_ $$0P:(DE-Juel1)176178$$aXu, X. Q.$$b3$$ufzj
000904076 7001_ $$0P:(DE-HGF)0$$aFlanagan, J.$$b4
000904076 7001_ $$0P:(DE-HGF)0$$aMcDonald, D. C.$$b5
000904076 7001_ $$0P:(DE-HGF)0$$ade la Luna, E.$$b6
000904076 7001_ $$0P:(DE-HGF)0$$aMaslov, M.$$b7
000904076 7001_ $$00000-0003-2906-5097$$aHarrison, J. R.$$b8
000904076 7001_ $$00000-0002-8034-4756$$aMilitello, F.$$b9
000904076 7001_ $$0P:(DE-HGF)0$$aFessey, J.$$b10
000904076 7001_ $$0P:(DE-HGF)0$$aCramp, S.$$b11
000904076 773__ $$0PERI:(DE-600)2037980-8$$a10.1088/1741-4326/abf056$$gVol. 61, no. 6, p. 066009 -$$n6$$p066009 -$$tNuclear fusion$$v61$$x0029-5515$$y2021
000904076 8564_ $$uhttps://juser.fz-juelich.de/record/904076/files/87079_understanding_the_role_of_edge_plasma_on_hdl._2.pdf$$yPublished on 2021-04-28. Available in OpenAccess from 2022-04-28.
000904076 8564_ $$uhttps://juser.fz-juelich.de/record/904076/files/Sun_2021_Nucl._Fusion_61_066009.pdf$$yRestricted
000904076 909CO $$ooai:juser.fz-juelich.de:904076$$pdnbdelivery$$pdriver$$pVDB$$popen_access$$popenaire
000904076 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)188884$$aForschungszentrum Jülich$$b0$$kFZJ
000904076 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)130040$$aForschungszentrum Jülich$$b2$$kFZJ
000904076 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)176178$$aForschungszentrum Jülich$$b3$$kFZJ
000904076 9131_ $$0G:(DE-HGF)POF4-134$$1G:(DE-HGF)POF4-130$$2G:(DE-HGF)POF4-100$$3G:(DE-HGF)POF4$$4G:(DE-HGF)POF$$aDE-HGF$$bForschungsbereich Energie$$lFusion$$vPlasma-Wand-Wechselwirkung$$x0
000904076 9141_ $$y2021
000904076 915__ $$0StatID:(DE-HGF)0200$$2StatID$$aDBCoverage$$bSCOPUS$$d2021-01-27
000904076 915__ $$0StatID:(DE-HGF)0600$$2StatID$$aDBCoverage$$bEbsco Academic Search$$d2021-01-27
000904076 915__ $$0StatID:(DE-HGF)0530$$2StatID$$aEmbargoed OpenAccess
000904076 915__ $$0StatID:(DE-HGF)0100$$2StatID$$aJCR$$bNUCL FUSION : 2019$$d2021-01-27
000904076 915__ $$0StatID:(DE-HGF)0113$$2StatID$$aWoS$$bScience Citation Index Expanded$$d2021-01-27
000904076 915__ $$0StatID:(DE-HGF)0150$$2StatID$$aDBCoverage$$bWeb of Science Core Collection$$d2021-01-27
000904076 915__ $$0StatID:(DE-HGF)9900$$2StatID$$aIF < 5$$d2021-01-27
000904076 915__ $$0StatID:(DE-HGF)0030$$2StatID$$aPeer Review$$bASC$$d2021-01-27
000904076 915__ $$0StatID:(DE-HGF)1150$$2StatID$$aDBCoverage$$bCurrent Contents - Physical, Chemical and Earth Sciences$$d2021-01-27
000904076 915__ $$0StatID:(DE-HGF)0430$$2StatID$$aNational-Konsortium$$d2021-01-27$$wger
000904076 915__ $$0StatID:(DE-HGF)0160$$2StatID$$aDBCoverage$$bEssential Science Indicators$$d2021-01-27
000904076 915__ $$0StatID:(DE-HGF)0420$$2StatID$$aNationallizenz$$d2021-01-27$$wger
000904076 915__ $$0StatID:(DE-HGF)0199$$2StatID$$aDBCoverage$$bClarivate Analytics Master Journal List$$d2021-01-27
000904076 9201_ $$0I:(DE-Juel1)IEK-4-20101013$$kIEK-4$$lPlasmaphysik$$x0
000904076 9201_ $$0I:(DE-Juel1)IEK-10-20170217$$kIEK-10$$lModellierung von Energiesystemen$$x1
000904076 9801_ $$aFullTexts
000904076 980__ $$ajournal
000904076 980__ $$aVDB
000904076 980__ $$aI:(DE-Juel1)IEK-4-20101013
000904076 980__ $$aI:(DE-Juel1)IEK-10-20170217
000904076 980__ $$aUNRESTRICTED
000904076 981__ $$aI:(DE-Juel1)IFN-1-20101013
000904076 981__ $$aI:(DE-Juel1)ICE-1-20170217
000904076 981__ $$aI:(DE-Juel1)ICE-1-20170217