Publikationen von U. Hoefel

Zeitschriftenartikel (75)

2024
Zeitschriftenartikel
Bannmann, S.; Ford, O.; Hoefel, U.; Poloskei, P. Z.; Pavone, A.; Kwak, S.; Svensson, J.; Lazerson, S.; McNeely, P.; Rust, N. et al.: Bayesian inference of electron density and ion temperature profiles from neutral beam and halo Balmer-α emission at Wendelstein 7-X. Plasma Physics and Controlled Fusion 66, 065001 (2024)
Zeitschriftenartikel
Bannmann, S.; Ford, O.; Poloskei, P. Z.; Svensson, J.; Pavone, A.; Kwak, S.; Hoefel, U.; Pasch, E.; Fuchert, G.; Smith, H. M. et al.: Particle transport in reduced turbulence neutral beam heated discharges at Wendelstein 7-X. Nuclear Fusion 64, 0106015 (2024)
Zeitschriftenartikel
Grulke, O.; Albert, C.; Alcuson Belloso, J. A.; Aleynikov, P.; Aleynikova, K.; Alonso, A.; Anda, G.; Andreeva, T.; Arvanitou, M.; Ascasibar, E. et al.: Overview of the first Wendelstein 7-X long pulse campaign with fully water-cooled plasma facing components. Nuclear Fusion 64, 112002 (2024)
Zeitschriftenartikel
Kwak, S.; Hoefel, U.; Krychowiak, M.; Langenberg, A.; Svensson, J.; Trimino Mora, H.; Ghim, Y.-C.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Bayesian modelling of multiple plasma diagnostics at Wendelstein 7-X. Nuclear Fusion 64, 106022 (2024)
Zeitschriftenartikel
Zanini, M.; Aymerich, E.; Böckenhoff, D.; Merlo, A.; Aleynikova, K.; Brandt, C.; Braune, H.; Brunner, K. J.; Hirsch, M.; Höfel, U. et al.: Automated W7-X sawtooth crashes detection and characterization. Nuclear Fusion 64, 076027 (2024)
2023
Zeitschriftenartikel
Bannmann, S.; Ford, O.; Hoefel, U.; Poloskei, P.; Pavone, A.; Kwak, S.; Svensson, J.; Lazerson, S.; McNeely, P.; Rust, N. et al.: Fast forward modeling of neutral beam injection and halo formation including full Balmer-α emission prediction at W7-X. Journal of Instrumentation 18, P10029 (2023)
Zeitschriftenartikel
Chaudhary, N.; Hirsch, M.; Andreeva, T.; Geiger, J.; Hoefel, U.; Rahbarnia, K.; Wurden, G. A.; Wolf, R. C.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Radial localization of electron temperature pedestal and ELM-like events using ECE measurements at Wendelstein 7-X. EPJ Web of Conferences 277, 03004 (2023)
Zeitschriftenartikel
Krychowiak, M.; König, R.; Barbui, T.; Brezinsek, S.; Brunner, J.; Effenberg, F.; Endler, M.; Feng, Y.; Flom, E.; Gao, Y. et al.: First feedback-controlled divertor detachment in W7-X: Experience from TDU operation and prospects for operation with actively cooled divertor. Nuclear Materials and Energy 34, 101363 (2023)
Zeitschriftenartikel
Merlo, A.; Pavone, A.; Böckenhoff, D.; Pasch, E.; Fuchert, G.; Brunner, K. J.; Rahbarnia, K.; Schilling, J.; Höfel, U.; Kwak, S. et al.: Accelerated Bayesian inference of plasma profiles with self-consistent MHD equilibria at W7-X via neural networks. Journal of Instrumentation 18, P11012 (2023)
Zeitschriftenartikel
Nelde, P.; Fuchert, G.; Pasch, E.; Beurskens, M. N. A.; Bozhenkov, S. A.; Brunner, K. J.; Höfel, U.; Kwak, S.; Meineke, J.; Scott, E. R. et al.: Quantification of systematic errors in the electron density and temperature measured with Thomson scattering at W7-X. Journal of Instrumentation 18, P09019 (2023)
Zeitschriftenartikel
Schilling, J.; Svensson, J.; Höfel, U.; Geiger, J.; Thomsen, H.: Biot-Savart routines with minimal floating point error. Computer Physics Communications 287, 108692 (2023)
Zeitschriftenartikel
Zhang, D.; Buttenschön, B.; Jablonski, S.; Kubkowska, M.; Ford, O.; Alcuson, J. A.; Beidler, C. D.; Burhenn, R.; Beurskens, M. N. A.; Langenberg, A. et al.: Observation of impurity accumulation and its compatibility with high plasma performance in W7-X. Plasma Physics and Controlled Fusion 65, 105006 (2023)
2022
Zeitschriftenartikel
Carralero, D.; Estrada, T.; Maragkoudakis, E.; Windisch, T.; Alonso, J. A.; Velasco, J. L.; Ford, O.; Jakubowski, M.; Lazerson, S.; Beurskens, M. et al.: On the role of density fluctuations in the core turbulent transport of Wendelstein 7-X. Plasma Physics and Controlled Fusion 64, 044006 (2022)
Zeitschriftenartikel
Chaudhary, N.; Hirsch, M.; Höfel, U.; Oosterbeek, J. W.; Marushchenko, N. B.; Wolf, R. C.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Electron temperature profile from optically grey X3-mode of electron cyclotron emission at Wendelstein 7-X using Bayesian analysis. Plasma Physics and Controlled Fusion 64, 055016 (2022)
Zeitschriftenartikel
Guerrero Arnaiz, J. F.; Dinklage, A.; Geiger, J.; Hirsch, M.; Höfel, U.; Brandt, C.; Thomsen, H.; Schilling, J.; Rahbarnia, K.; Neuner, U. et al.: Fast characterization of plasma states in W7-X with permutation entropy. Plasma Physics and Controlled Fusion 64, 084005 (2022)
Zeitschriftenartikel
Hirsch, M. W.; Bannmann, S.; Beurskens, M. N. A.; Biedermann, C.; Bozhenkov, S.; Brunner, K.-J.; Chaudhary, N.; Damm, H.; Ford, O.; Guerrero-Arnaiz, J. et al.: Core Diagnostics for WENDELSTEIN 7-X Steady-State Exploration Until 18 GJ. Plasma and Fusion Research 17, 2406097 (2022)
Zeitschriftenartikel
Pedersen, T. S.; Abramovic, I.; Agostinetti, P.; Agredano Torres, M.; Äkäslompolo, S.; Alcuson Belloso, J.; Aleynikov, P.; Aleynikova, K.; Alhashimi, M.; Ali, A. et al.: Experimental confirmation of efficient island divertor operation and successful neoclassical transport optimization in Wendelstein 7-X. Nuclear Fusion 62, 042022 (2022)
2021
Zeitschriftenartikel
Beidler, C. D.; Smith, H. M.; Alonso, A.; Andreeva, T.; Baldzuhn, J.; Beurskens, M. N. A.; Borchardt, M.; Bozhenkov, S. A.; Brunner, K. J.; Damm, H. et al.: Demonstration of reduced neoclassical energy transport in Wendelstein 7-X. Nature 596, S. 221 - 226 (2021)
Zeitschriftenartikel
Drews, P.; Dittmar, T.; Killer, C.; Winters, V.; Kirschner, A.; Brezinsek, S.; Xu, S.; Wang, E.; Jakubowski, M.; Brunner, K. J. et al.: Effectiveness of local methane and hydrogen injection into the scrape-off layer of W7-X by means of the multi-purpose manipulator. Fusion Engineering and Design 173, 112786 (2021)
Zeitschriftenartikel
Guerrero Arnaiz, J. F.; Dinklage, A.; Pompe, B.; Geiger, J.; Hirsch, M.; Höfel, U.; Marushchenko, N.; Turkin, Y.; Wolf, R. C.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Flux surface identification by spatio-temporal coupling with partial mutual information analysis of electron cyclotron emission data. Plasma Physics and Controlled Fusion 63, 015002 (2021)
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