Gast ::
| Hauptseite > Publikationsdatenbank > Experimental studies of H-mode divertor detachment with deuterium gas injection in KSTAR plasmas > print |
| Hauptseite > Publikationsdatenbank > Experimental studies of H-mode divertor detachment with deuterium gas injection in KSTAR plasmas > print |
| 001 | 891504 | ||
| 005 | 20240709082153.0 | ||
| 037 | _ | _ | |a FZJ-2021-01570 |
| 100 | 1 | _ | |a Hwang, J. H. |0 P:(DE-HGF)0 |b 0 |
| 111 | 2 | _ | |a 24th International Conference on Plasma Surface Interactions in Controlled Fusion Devices (PSI 2020) |c virtuell |d 2021-01-25 - 2021-01-29 |w virtuell |
| 245 | _ | _ | |a Experimental studies of H-mode divertor detachment with deuterium gas injection in KSTAR plasmas |
| 260 | _ | _ | |c 2021 |
| 336 | 7 | _ | |a Abstract |b abstract |m abstract |0 PUB:(DE-HGF)1 |s 1636545643_7654 |2 PUB:(DE-HGF) |
| 336 | 7 | _ | |a Conference Paper |0 33 |2 EndNote |
| 336 | 7 | _ | |a INPROCEEDINGS |2 BibTeX |
| 336 | 7 | _ | |a conferenceObject |2 DRIVER |
| 336 | 7 | _ | |a Output Types/Conference Abstract |2 DataCite |
| 336 | 7 | _ | |a OTHER |2 ORCID |
| 520 | _ | _ | |a Experimental studies of H-mode divertor detachmentwith D2 injection in KSTARJ. H. Hwanga, J.-S. Parkb, R. Pittsb, H. H. Leec, J.-W. Juhnc, J. Jangc,J. G. Bakc,S. Wiesend, M. Bernerte,S.-H. Hongc, and W. Choea a KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Koreab ITEROrganization, Route de Vinon-sur-Verdon, CS 90 046, 13067 St. Paul Lez Durance Cedex, FrancecNational Fusion Research Institute, 169-148 Gwahak-ro, Yuseong-gu,Daejeon 34133, KoreadForschungszentrum Jülich GmbH, Institut für Energie-und Klimaforschung -Plasmaphysik, D-52425 Jülich, GermanyeMax Planck Institute for Plasma Physics, Boltzmannstraße 2, 85748 Garching, Germanyhoo1021@kaist.ac.kr; wchoe@kaist.ac.krSince H-mode has beenregarded as a promising operating scenario for future tokamaks, it is important to get a good understanding of divertor detachment in H-mode plasmas.So far the extensive detachment studies in KSTAR focused on L-mode plasmas [1]. Therefore, H-mode detachmentstudies with pure deuterium fuelled discharges with no impurity gas seedingcan bethe baseline starting point for further complex studies of detachment under impurity injections or ELMcontrolled/suppressed 3D field configurations in KSTAR. In this study, the first signs of H-mode divertor detachmentby deuterium gas injectionin KSTARwere obtained in electron density ramp discharges.The discharges in this study had Ip=0.7 MA and Bt= 1.8 T with ∇B-drift directed downward into the lower divertor. The total NBI heating power was 2.9-3.1 MW. In the experiment, the outer target showed a partially detached regime and the inter-ELM peak particle flux was reduced significantly by a factor of 5 to below 2.0x1022m-2s-1. At the inner target, particle flux roll-over occurred although there was not significant reduction of the inter-ELM peak particle flux.The line-integrated density rose up to about 6.0x1019m-3(fGW≈0.8) and further density increase for accessing pronounced detachment was failed by arriving at the H-mode density limit [2]. Theanomalous in/out detachment asymmetry in which the outer target detaches at the lower core density than the inner target has been observedin KSTAR L-mode plasmas [1]and it wasshown that the asymmetry was reproduced in KSTAR H-mode plasmas.This work will act as reference for more complex H-mode detachment studies to be pursued on KSTARand contribute to better understanding of physics behind divertor detachment.Experimental resultscould give several important constraints to theSOLPS-ITERmodelling so that the benchmarking and predictive research regarding KSTAR boundary plasmas will be possible.[1] J.-S. Park, et al., Nucl. Fusion 58 126033 (2018)[2] M. Bernert, et al., Plasma Phys. Control. Fusion 57 014038 (2015) |
| 536 | _ | _ | |a 134 - Plasma-Wand-Wechselwirkung (POF4-134) |0 G:(DE-HGF)POF4-134 |c POF4-134 |f POF IV |x 0 |
| 700 | 1 | _ | |a Park, J.-S. |0 P:(DE-Juel1)180853 |b 1 |
| 700 | 1 | _ | |a Pitts, R. |0 P:(DE-HGF)0 |b 2 |
| 700 | 1 | _ | |a Lee, H. H. |0 P:(DE-HGF)0 |b 3 |
| 700 | 1 | _ | |a Juhn, J.-W. |0 P:(DE-HGF)0 |b 4 |
| 700 | 1 | _ | |a Jang, J. |0 P:(DE-HGF)0 |b 5 |
| 700 | 1 | _ | |a Bak, J. G. |0 P:(DE-HGF)0 |b 6 |
| 700 | 1 | _ | |a Wiesen, S. |0 P:(DE-HGF)0 |b 7 |e Corresponding author |
| 700 | 1 | _ | |a Bernert, M. |0 P:(DE-HGF)0 |b 8 |
| 700 | 1 | _ | |a Hong, S.-H. |0 P:(DE-HGF)0 |b 9 |
| 700 | 1 | _ | |a Choe, W. |0 P:(DE-HGF)0 |b 10 |
| 909 | C | O | |p VDB |o oai:juser.fz-juelich.de:891504 |
| 910 | 1 | _ | |a Forschungszentrum Jülich |0 I:(DE-588b)5008462-8 |k FZJ |b 1 |6 P:(DE-Juel1)180853 |
| 913 | 0 | _ | |a DE-HGF |b Energie |l Kernfusion |1 G:(DE-HGF)POF3-170 |0 G:(DE-HGF)POF3-174 |3 G:(DE-HGF)POF3 |2 G:(DE-HGF)POF3-100 |4 G:(DE-HGF)POF |v Plasma-Wall-Interaction |x 0 |
| 913 | 1 | _ | |a DE-HGF |b Forschungsbereich Energie |l Fusion |1 G:(DE-HGF)POF4-130 |0 G:(DE-HGF)POF4-134 |3 G:(DE-HGF)POF4 |2 G:(DE-HGF)POF4-100 |4 G:(DE-HGF)POF |v Plasma-Wand-Wechselwirkung |x 0 |
| 914 | 1 | _ | |y 2021 |
| 920 | 1 | _ | |0 I:(DE-Juel1)IEK-9-20110218 |k IEK-9 |l Grundlagen der Elektrochemie |x 0 |
| 980 | _ | _ | |a abstract |
| 980 | _ | _ | |a VDB |
| 980 | _ | _ | |a I:(DE-Juel1)IEK-9-20110218 |
| 980 | _ | _ | |a UNRESTRICTED |
| 981 | _ | _ | |a I:(DE-Juel1)IET-1-20110218 |
| Library | Collection | CLSMajor | CLSMinor | Language | Author |
|---|