Publications of S. Kwak

Talk (21)

61.
Talk
Zhang, D.; Baldzuhn, J.; Brakel, R.; Brezinsek, S.; Burhenn, R.; Buttenschön, B.; Feng, Y.; Giannone, L.; Jakubowski, M.; König, R. et al.; Krychowiak, M.; Wagner, F.; Niemann, H.; Tamura, N.; Bussiahn, R.; Effenberg, F.; Geiger, B.; Wegner, T.; Ford, O.; Bozhenkov, S.; Fuchert, G.; Gao, Y.; Hacker, P.; Kwak, S.; Langenberg, A.; Pablant, N.; Reimold, F.; Svensson, J.; Thomsen, H.; Winters, V.; Pedersen, T. S.; Klinger, T.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Results from the first operation phases of Wendelstein 7-X. 9th International Workshop on "Stochasticity in Fusion Plasmas (SFP)" – 3D Physics in Stellarators and Tokamaks, Bad Honnef (submitted)
62.
Talk
Höfel, U.; Hirsch, M.; Kwak, S.; Marushchenko, N. B.; Oosterbeek, J. W.; Pavone, A.; Stange, T.; Svensson, J.; Turkin, Y.; Weir, G. M. et al.; Wolf, R. C.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Bayesian modelling of ECE calibration and measurements at Wendelstein 7-X. 20th Joint Workshop on Electron Cyclotron Emission (ECE) and Electron Cyclotron Resonance Heating (ECRH) (EC-20), Greifswald (submitted)
63.
Talk
Kwak, S.; Svensson, J.; Bozhenkov, S.; Trimino Mora, H.; Höfel, U.; Pavone, A.; Fuchert, G.; Kornejew, P.; Krychowiak, M.; Langenberg, A. et al.; Ghim, Y.-c.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Bayesian modelling and inference of multiple diagnostic systems at Wendelstein 7-X in the Minerva framework. KSTAR Conference 2018, Jeonbuk (submitted)
64.
Talk
Pavone, A.; Svensson, J.; Langenberg, A.; Kwak, S.; Hoefel, U.; Pablant, N.; Brix, M.; Wolf, R. C.; for the Wendelstein 7-X Team Collaboration: Machine learning approximations of Bayesian models. DPG-Frühjahrstagung 2019 der Sektion Materie und Kosmos (SMuK), München (submitted)
65.
Talk
Zhang, D.; König, R.; Feng, Y.; Brezinsek, S.; Jakubowski, M.; Burhenn, R.; Buttenschön, B.; Niemann, H.; Krychowiak, M.; Alonso, A. et al.; Baldzuhn, J.; Bozhenkov, S.; Hirsch, M.; Giannone, L.; Kwak, S.; Penzel, F.; Rahbarnia, K.; Svensson, J.; Thomsen, H.; Winters, V.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: First observation of a stable highly-radiative divertor regime at stellarator W7-X. 45th EPS Conference on Plasma Physics, Prague (submitted)
66.
Talk
Hoefel, U.; Chaudhary, N.; Ford, O.; Hirsch, M.; Kwak, S.; Marushchenko, N. B.; Oosterbeek, H.; Pavone, A.; Schilling, J.; Stange, T. et al.; Svensson, J.; Turkin, Y.; Weir, G.; Wolf, R. C.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Bayesian inference of the electron cyclotron emission diagnostic at Wendelstein 7-X. 82. Jahrestagung der DPG und DPG-Frühjahrstagung der Sektion AMOP, Erlangen (submitted)
67.
Talk
Kwak, S.; Svensson, J.; Bozhenkov, S.; Trimino Mora, H.; Höfel, U.; Pavone, A.; Krychowiak, M.; Langenberg, A.; Ghim, Y.-c.: Bayesian modelling of multiple diagnostics at Wendelstein 7-X using the Minerva framework. 82. Jahrestagung der DPG und DPG-Frühjahrstagung der Sektion AMOP, Erlangen (submitted)
68.
Talk
Trimino Mora, H.; Bozhenkov, S.; Knauer, J.; Kornejew, P.; Kwak, S.; Ford, O.; Fuchert, G.; Pasch, E.; Svensson, J.; Werner, A. et al.; Wolf, R. C.; Timmermann, D.: FPGA Acceleration of Bayesian Model Based Analysis for Time-independent Problems. 5th IEEE Global Conference on Signal and Information Processing (GlobalSIP 2017), Montreal (submitted)

Poster (26)

69.
Poster
Kubkowska, M.; Jablonski, S.; Gruca, M.; Fornal, T.; Neuner, U.; Krychowiak, M.; Pavone, A.; Fuchert, G.; Kwak, S.; Svensson, J. et al.; Höfel, U.; König, R.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Impurity concentration and Zeff estimation from the pulse height analysis spectra collected at W7-X. International Conference on Research and Applications of Plasmas – PLASMA 2023, Warsaw (submitted)
70.
Poster
Kwak, S.; Svensson, J.; Ford, O. P.; Appel, L.; Ghim, Y.-c.; JET Contributors: Bayesian inference of axisymmetric plasma equilibria. 65th Annual Meeting of the APS Division of Plasma Physics, Denver, CO (submitted)
71.
Poster
Flom, E.; Barbui, T.; Schmitz, O.; Krychowiak, M.; König, R.; Henke, F.; Jakubowski, M.; Kwak, S.; Loch, S.; Munoz Burgos, J. et al.; Svensson, J.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Bayesian forward modeling of the helium beam diagnostic at Wendelstein 7-X and its associated model uncertainties. 23rd International Stellarator and Heliotron Workshop (ISHW 2022), Warsaw (submitted)
72.
Poster
Zhang, D.; Beurskens, M. N. A.; Alcuson, J. A.; Wurden, G.; Buttenschön, B.; Jablonski, S.; Kubkowska, M.; Langenberg, A.; Rahbarnia, K.; Reimold, F. et al.; Pavone, A.; Kwak, S.; Smith, H. M.; Beidler, C. D.; Bozhenkov, S. A.; Ford, O.; Biedermann, C.; Brunner, K. J.; Feng, Y.; Fuchert, G.; Gao, Y.; Geiger, J.; Höfel, U.; Hirsch, M.; Huang, Z.; Jakubowski, M.; Knauer, J.; Kornejew, P.; Kremeyer, T.; Krychowiak, M.; König, R.; Laqua, H. P.; Laube, R.; Naujoks, D.; Pablant, N.; Pasch, E.; Stechow, A. v.; Thomsen, H.; Wegner, T.; Weir, G.; Winters, V.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Compatibility of high-Z impurity accumulation with high plasma performance in ECR-heated W7-X plasmas. 48th EPS Conference on Plasma Physics, Virtual (submitted)
73.
Poster
Flom, E.; Barbui, T.; Schmitz, O.; Krychowiak, M.; König, R.; Henke, F.; Jakubowski, M.; Kwak, S.; Loch, S.; Munoz Burgos, J. et al.; Svensson, J.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Investigations into Helium Beam Atomic Model Uncertainties via Bayesian Inference Methods. 25th International Conference on Plasma Surface Interactions in Controlled Fusion Devices (PSI 25), Jeju (submitted)
74.
Poster
Krychowiak, M.; König, R.; Barbui, T.; Flom, E.; Svensson, J.; Kwak, S.; Henke, F.; Gradic, D.; Reimold, F.; Pedersen, T. S. et al.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Gaussian Process Tomography of impurity radiation in the detached divertor plasmas of Wendelstein 7-X stellarator. 47th EPS Conference on Plasma Physics, Virtual (submitted)
75.
Poster
Kwak, S.; Hergenhahn, U.; Höfel, U.; Krychowiak, M.; Pavone, A.; Svensson, J.; Ford, O.; König, R.; Bozhenkov, S.; Fuchert, G. et al.; Pasch, E.; Brunner, K. J.; Knauer, J.; Kornejew, P.; Trimino Mora, H.; Pedersen, T. S.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Gaussian process tomography of the effective ion charge Zeff from multiple line-integrated bremsstrahlung spectra. 63rd Annual Meeting of the APS Division of Plasma Physics, Pittsburgh, PA (submitted)
76.
Poster
Merlo, A.; Böckenhoff, D.; Schilling, J.; Höfel, U.; Kwak, S.; Svensson, J.; Pavone, A.; Lazerson, S. A.; Pedersen, T. S.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Proof of concept of a fast surrogate model of the VMEC code via neural networks in Wendelstein 7-X scenarios. DPG-Tagung der Sektion Materie und Kosmos (SMuK), Virtual (submitted)
77.
Poster
Schilling, J.; Thomsen, H.; Brandt, C.; Rahbarnia, K.; Pasch, E.; Beurskens, M.; Bozhenkov, S.; Damm, H.; Fuchert, G.; Scott, E. et al.; Hirsch, M.; Chaudhary, N.; Ewert, K.; Höfel, U.; Oosterbeek, J. W.; Stange, T.; Weir, G.; Knauer, J.; Akiyama, T.; Brunner, K. J.; Andreeva, T.; Neuner, U.; Ford, O.; Kwak, S.; Pavone, A.; Svensson, J.; Zanini, M.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Experimental Survey of Plasma-Terminating Events in the Wendelstein 7-X Stellarator. DPG-Tagung der Sektion Materie und Kosmos (SMuK), Virtual (submitted)
78.
Poster
Kwak, S.; Höfel, U.; Pavone, A.; Svensson, J.; Ford, O.; Hergenhahn, U.; König, R.; Krychowiak, M.; Bozhenkov, S.; Fuchert, G. et al.; Pasch, E.; Brunner, K. J.; Knauer, J.; Kornejew, P.; Trimino Mora, H.; Pedersen, T. S.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Bayesian inference of Zeff profiles from near-infrared multichannel bremsstrahlung spectrometer by using Gaussian processes at Wendelstein 7-X. 23rd Topical Conference on High Temperature Plasma Diagnostics (HTPD 2020), Virtual (submitted)
79.
Poster
Pavone, A.; Svensson, J.; Kwak, S.; Langenberg, A.; Pablant, N.; Brix, M.; Wolf, R. C.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society; JET Contributors: Neural network surrogates of Bayesian diagnostic models for fast inference of plasma parameters. 23rd Topical Conference on High Temperature Plasma Diagnostics (HTPD 2020), Virtual (submitted)
80.
Poster
Zhang, D.; Burhenn, R.; Feng, Y.; Giannone, L.; König, R.; Effenberg, F.; Kwak, S.; Svensson, J.; Buttenschön, B.; Beurskens, M. N. A. et al.; Reimold, F.; Hacker, P.; Penzel, F.; Thomsen, H.; Baldzuhn, J.; Beidler, C. D.; Bozhenkov, S.; Brunner, K. J.; Fuchert, G.; Gao, Y.; Jakubowski, M.; Krychowiak, M.; Niemann, H.; Otte, M.; Rahbarnia, K.; Rudischhauser, L.; Weir, G.: Plasma Radiation Behavior Approaching High-radiation Scenarios in W7-X. 28th IAEA Fusion Energy Conference (FEC 2020), Virtual (submitted)
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