Publications of S. Kwak

Zhang, D.; Beurskens, M. N. A.; Alcusón, 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.; Burhenn, R.; Feng, Y.; Fuchert, G.; Gao, Y.; Geiger, J.; Giannone, L.; Höfel, U.; Hirsch, M.; Huang, Z.; Knauer, J.; Kornejew, P.; Kremeyer, T.; Krychowiak, M.; König, R.; Laqua, H. P.; Laube, R.; Naujoks, D.; Pablant, N.; Pasch, E.; Penzel, F.; 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. In: 48th EPS Conference on Plasma Physics, P1b.117 (Eds. Klinger, T.; Hobirk, J.; Orlando, S.; Lancia, L.; Maric, D. et al.). 48th EPS Conference on Plasma Physics, Virtual, June 27, 2022 - July 01, 2022. European Physical Society, Geneva (2022)

Krychowiak, M.; König, R.; Henke, F.; Barbui, T.; Flom, E.; Kwak, S.; Svensson, J.; Gradic, D.; Feng, Y.; Gao, Y. et al.; Jakubowski, M.; Otte, M.; Reimold, F.; Schmitz; Winters, V.; Zhang, D.; Pedersen, T. S.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Gaussian Process Tomography of carbon radiation in the transition to detached plasmas in the Wendelstein 7-X stellarator. In: 47th EPS Conference on Plasma Physics, P1.1026 (Eds. Giruzzi, G.; Arnas, C.; Borba, D.; Gopla, A.; Lebedev, S. et al.). 47th EPS Conference on Plasma Physics, Virtual, June 21, 2021 - June 25, 2021. European Physical Society, Geneva (2021)

Neuner, U.; Rahbarnia, K.; Andreeva, T.; Schilling, J.; Thomsen, H.; Turkin, Y.; Dinklage, A.; Beurskens, M.; Bozhenkov, S.; Damm, H. et al.; Fuchert, G.; Pasch, E.; Langenberg, A.; Pablant, N.; Krychowiak, M.; Pavone, A.; Svensson, J.; Hergenhahn, U.; Höfel, U.; Kwak, S.; Geiger, J.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Dependence of the intrinsic toroidal current on heating power and density in the W7-X stellarator. In: 46th EPS Conference on Plasma Physics, P2.1065 (Eds. Riconda, C.; Brezinsek, S.; McCarty, K.; Lancaster, K.; Burgess, D. et al.). 46th EPS Conference on Plasma Physics, Milan, July 08, 2019 - July 12, 2019. European Physical Society, Geneva (2019)

Zhang, D.; Burhenn, R.; Hacker, P.; Reimold, F.; Giannone, L.; Kwak, S.; Laube, R.; Svensson, J.; Penzel, F.; Baldzuhn, J. et al.; Beidler, C. D.; Beurskens, M.; Bozhenkov, S.; Brezinsek, S.; Brunner, K. J.; Bussiahn, R.; Buttenschön, B.; Feng, Y.; Fuchert, G.; Gao, Y.; Grulke, O.; Höfel, U.; Hirsch, M.; Huang, Z.; Jakubowski, M.; Knauer, J.; König, R.; Krychowiak, M.; Laqua, H. P.; Langenberg, A.; Niemann, H.; Pablant, N.; Pavone, A.; Pasch, E.; Rahbarnia, K.; Stechow, A. v.; Tamura, N.; Thomsen, H.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Impact of impurity radiation locations on the plasma performance at W7-X stellarator. In: 46th EPS Conference on Plasma Physics, P2.1058 (Eds. Riconda, C.; Brezinsek, S.; McCarty, K.; Lancaster, K.; Burgess, D. et al.). 46th EPS Conference on Plasma Physics, Milan, July 08, 2019 - July 12, 2019. European Physical Society, Geneva (2019)

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. In: 2017 IEEE Global Conference on Signal and Information Processing (GlobalSIP), pp. 774 - 778. 5th IEEE Global Conference on Signal and Information Processing (GlobalSIP 2017), Montreal, November 14, 2017 - November 16, 2017. IEEE, New York, NY (2018)

Zhang, D.; König, R.; Feng, Y.; Burhenn, R.; Brezinsek, S.; Jakubowski, M.; Buttenschön, B.; Niemann, H.; Krychowiak, M.; Alonso, A. et al.; Baldzuhn, J.; Biedermann, C.; Bozhenkov, S.; Brunner, K. J.; Hirsch, M.; Damm, H.; Effenberg, F.; Fuchert, G.; Gao, Y.; Giannone, L.; Knauer, J.; Kwak, S.; Laqua, H.; Pasch, E.; Pavone, A.; Penzel, F.; Rahbarnia, K.; Svensson, J.; Thomsen, H.; Winters, V.; Klinger, T.; 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. In: 45th EPS Conference on Plasma Physics, O3.103. 45th EPS Conference on Plasma Physics, Prague, July 02, 2018 - July 06, 2018. European Physical Society, Geneva (2018)

Schilling, J.; Thomsen, H.; Brandt, C.; Kwak, S.; Svensson, J.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Soft X-ray survey of high-performance experiments in Wendelstein 7-X. In: Verhandlungen der Deutschen Physikalischen Gesellschaft, (VI) 55 (1), P 5.13. DPG-Frühjahrstagung der Sektion Atome, Moleküle, Quantenoptik und Plasmen (SAMOP), Hannover, March 08, 2020 - March 13, 2020. DPG, Bad Honnef (submitted)

Flom, E.; Barbui, T.; Schmitz, O.; Harris, A.; Koenig, R.; Kwak, S.; Svensson, J.; Loch, S.: Improved uncertainty modeling for the helium collisionalradiative model used for line-ratio spectroscopy on Wendelstein 7-X. 21st International Conference on Atomic Processes in Plasmas, Vienna (submitted)

Kim, J.; Nam, Y. U.; Kwak, S.; Ahn, B.; Juhn, J. W.; Kim, J.; Ghim, Y.-C.: Edge Plasma Density Profile Estimations Using Bayesian Model and Gaussian process in the KSTAR Hydrogen Beam Emission Spectroscopy. 65th Annual Meeting of the APS Division of Plasma Physics, Denver, CO (2023)

Kwak, S.; Svensson, J.; Höfel, U.; Pavone, A.; Ford, O.; Krychowiak, M.; Langenberg, A.; Schilling, J.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Overview of Bayesian plasma diagnostic modelling at W7-X. 5th European Conference on Plasma Diagnostics (ECPD 2023), Rethymno (submitted)

Kim, J.; Kim, J.; Jang, J.; Kwak, S.; Ghim, Y.-c.: Efficient way to find maximum a posteriori of nonnegative gaussian process tomography for plasma radiation during SPI induced disruption experiments. 64th Annual Meeting of the APS Division of Plasma Physics, Spokane, WA (2022)

Kwak, S.; De Bock, M.; Krychowiak, M.; König, R.; Svensson, J.; Pedersen, T. S.: Bayesian modelling of the visible spectroscopy reference system at ITER. 64th Annual Meeting of the APS Division of Plasma Physics, Spokane, WA (submitted)

Joung, S.; Kim, J.; Kwak, S.; Kim, M.; Kim, H. S.; Bak, J. G.; Ghim, Y.-c.: Learning plasma equilibria from scratch with deep neural network Grad-Shafranov solver. 63rd Annual Meeting of the APS Division of Plasma Physics, Pittsburgh, PA (2021)

Kim, J.; Kim, J.; Jang, J.; Kwak, S.; Ghim, Y.-c.: Nonnegative Gaussian process on quasi-periodic noise for plasma radiation tomography during a disruption. 63rd Annual Meeting of the APS Division of Plasma Physics, Pittsburgh, PA (2021)

Langenberg, A.; Svensson, J.; Pavone, A.; Kwak, S.; Höfel, U.; Romba, T.; Ford, O.; Beppler, S.; Brandt, C.; Schilling, J. et al.; Thomsen, H.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Status, Prospects, and Benchmarking of the Minerva Bayesian Modeling Framework at Wendelstein 7-X. 4th IAEA Technical Meeting on Fusion Data Processing, Validation and Analysis, Virtual (submitted)

Pavone, A.; Svensson, J.; Langenberg, A.; Krychowiak, M.; Kwak, S.; Wolf, R. C.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Scalable Bayesian inference with model based machine learning. 4th IAEA Technical Meeting on Fusion Data Processing, Validation and Analysis, Virtual (submitted)

Pavone, A.; Svensson, J.; Langenberg, A.; Krychowiak, M.; Kwak, S.; Wolf, R. C.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Deep learning for fast Bayesian inference of plasma diagnostic models. 4th IAEA Technical Meeting on Fusion Data Processing, Validation and Analysis, Virtual (submitted)

Appel, L. C.; Svensson, J.; Kwak, S.: Calibration of Magnetic Detectors on MAST-U. 3rd IAEA Technical Meeting on Fusion Data Processing, Validation and Analysis, Vienna (2019)

Flom, E.; Barbui, T.; Effenberg, F.; Schmitz, O.; Jakubowski, M.; Krychowiak, M.; Koenig, R.; Kwak, S.; Loch, S.; Munoz Burgos, J. M. et al.; Svensson, J.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: The He/Ne beam diagnostic for line ratio spectroscopy in the Island Divertor of Wendelstein 7-X. 20th International Conference on Atomic Processes in Plasmas, Gaithersburg, MD (submitted)

Weir, G. M.; Proll, J. H. E.; Windisch, T.; Stechow, A. v.; Alcuson, J.; Bozhenkov, S.; Carralero, D.; Dinklage, A.; Edlund, E.; Estrada, T. et al.; Fuchert, G.; Grulke, O.; Hirsch, M.; Höfel, U.; Kwak, S.; Langenberg, A.; Lazerson, S.; Pablant, N.; Pasch, E.; Porkolab, M.; Scott, E.; Schmitt, J.; Smoniewski, J.; Stange, T.; Turkin, Y.; Warmer, F.; Xanthopoulos, P.; Zhang, D.; Huang, Z.; Klinger, T.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Heat Pulse Propagation and Core Turbulence Measurements on the Optimized Stellarator Wendelstein 7-X. 22nd International Stellarator and Heliotron Workshop 2019 (ISHW 2019), Madison, WI (submitted)