Publications of S. Kwak
All genres
Journal Article (46)
41.
Journal Article
61, 075012 (2019)
Neural network approximation of Bayesian models for the inference of ion and electron temperature profiles at W7-X. Plasma Physics and Controlled Fusion 42.
Journal Article
123, 025002 (2019)
First Observation of a Stable Highly Dissipative Divertor Plasma Regime on the Wendelstein 7-X Stellarator. Physical Review Letters 43.
Journal Article
89, 10K106 (2018)
Imputation of faulty magnetic sensors with coupled Bayesian and Gaussian processes to reconstruct the magnetic equilibrium in real time. Review of Scientific Instruments 44.
Journal Article
89, 10K102 (2018)
Bayesian uncertainty calculation in neural network inference of ion and electron temperature profiles at W7-X. Review of Scientific Instruments 45.
Journal Article
57, 036017 (2017)
Bayesian electron density inference from JET lithium beam emission spectra using Gaussian processes. Nuclear Fusion 46.
Journal Article
57, 102020 (2017)
Major results from the first plasma campaign of the Wendelstein 7-X stellarator. Nuclear Fusion Conference Paper (6)
47.
Conference Paper
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)
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. 48.
Conference Paper
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)
49.
Conference Paper
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)
50.
Conference Paper
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)
51.
Conference Paper
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)
52.
Conference Paper
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)
Meeting Abstract (1)
53.
Meeting Abstract
(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)
Soft X-ray survey of high-performance experiments in Wendelstein 7-X. In: Verhandlungen der Deutschen Physikalischen Gesellschaft, Talk (22)
54.
Talk
Overview of Bayesian plasma diagnostic modelling. 3rd International Fusion and Plasma Conference (iFPC 2024), Seoul (submitted)
55.
Talk
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)
56.
Talk
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)
57.
Talk
Overview of Bayesian plasma diagnostic modelling at W7-X. 5th European Conference on Plasma Diagnostics (ECPD 2023), Rethymno (submitted)
58.
Talk
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)
59.
Talk
Bayesian modelling of the visible spectroscopy reference system at ITER. 64th Annual Meeting of the APS Division of Plasma Physics, Spokane, WA (submitted)
60.
Talk
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)