Publications of U. Höfel

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.; Drevlak, M.; Ford, O. P.; Fuchert, G.; Geiger, J.; Helander, P.; Hergenhahn, U.; Hirsch, M.; Höfel, U.; Kazakov, Y. O.; Kleiber, R.; Krychowiak, M.; Kwak, S.; Langenberg, A.; Laqua, H. P.; Neuner, U.; Pablant, N. A.; Pasch, E.; Pavone, A.; Pedersen, T. S.; Rahbarnia, K.; Schilling, J.; Scott, E. R.; Stange, T.; Svensson, J.; Thomsen, H.; Turkin, Y.; Warmer, F.; Wolf, R. C.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Demonstration of reduced neoclassical energy transport in Wendelstein 7-X. Nature 596, pp. 221 - 226 (2021)

Drews, P.; Dittmar, T.; Killer, C.; Winters, V.; Kirschner, A.; Brezinsek, S.; Xu, S.; Wang, E.; Jakubowski, M.; Brunner, K. J. et al.; Knauer, J.; Grulke, O.; Höschen, D.; Knieps, A.; Nicolai, D.; Neubauer, O.; Satheeswaran, G.; Hirsch, M.; Höfel, U.; Liang, Y.: 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)

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)

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: Bayesian inference of spatially resolved Z_eff profiles from line integrated bremsstrahlung spectra. Review of Scientific Instruments 92, 043505 (2021)

Laqua, H. P.; Baldzuhn, J.; Braune, H.; Bozhenkov, S.; Brunner, K.; Hirsch, M.; Hoefel, U.; Knauer, J.; Langenberg, A.; Marsen, S. et al.; Moseev, D.; Pasch, E.; Rahbarnia, K.; Stange, T.; Wolf, R. C.; Pablant, N.; Grulke, O.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: High-performance ECRH at W7-X: experience and perspectives. Nuclear Fusion 61, 106005 (2021)

Lazerson, S. A.; Ford, O.; Äkaslompolö, S.; Bozhenkov, S.; Slaby, C.; Vano, L.; Spanier, A.; McNeely, P.; Rust, N.; Hartmann, D. et al.; Pölöskei, P.; Buttenschön, B.; Burhenn, R.; Tamura, N.; Bussiahn, R.; Wegner, T.; Drevlak, M.; Turkin, Y.; Ogawa, K.; Knauer, J.; Brunner, K. J.; Pasch, E.; Beurskens, M.; Damm, H.; Fuchert, G.; Nelde, P.; Scott, E.; Pablant, N.; Langenberg, A.; Traverso, P.; Valson, P.; Hergenhahn, U.; Pavone, A.; Rahbarnia, K.; Andreeva, T.; Schilling, J.; Brandt, C.; Neuner, U.; Thomsen, H.; Chaudhary, N.; Hoefel, U.; Stange, T.; Weir, G.; Marushchenko, N.; Jakubowski, M.; Ali, A.; Gao, Y.; Niemann, H.; Puig Sitjes, A.; Koenig, R.; Schroeder, R.; Harder, N. d.; Heinemann, B.; Hopf, C.; Riedl, R.; Wolf, R. C.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: First neutral beam experiments on Wendelstein 7-X. Nuclear Fusion 61, 096008 (2021)

Lunsford, R.; Killer, C.; Nagy, A.; Gates, D. A.; Klinger, T.; Dinklage, A.; Satheeswaran, G.; Kocsis, G.; Lazerson, S. A.; Nespoli, F. et al.; Pablant, N. A.; Stechow, A. v.; Alonso, A.; Andreeva, T.; Beurskens, M.; Biedermann, C.; Brezinsek, S.; Brunner, K. J.; Buttenschön, B.; Carralero, D.; Cseh, G.; Drewelow, P.; Effenberg, F.; Estrada, T.; Ford, O. P.; Grulke, O.; Hergenhahn, U.; Höfel, U.; Knauer, J.; Krause, M.; Krychowiak, M.; Kwak, S.; Langenberg, A.; Neuner, U.; Nicolai, D.; Pavone, A.; Puig Sitjes, A.; Rahbarnia, K.; Schilling, J.; Svensson, J.; Szepesi, T.; Thomsen, H.; Wauters, T.; Windisch, T.; Winters, V.; Zhang, D.; Zsuga, L.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Characterization of injection and confinement improvement through impurity induced profile modifications on the Wendelstein 7-X stellarator. Physics of Plasmas 28, 082506 (2021)

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. Nuclear Fusion 61, 096039 (2021)

Neuner, U.; Rahbarnia, K.; Beidler, C. D.; Dinklage, A.; Turkin, Y.; Stange, T.; Andreeva, T.; Schilling, J.; Thomsen, H.; Beurskens, M. et al.; Bozhenkov, S.; Brunner, K. J.; Damm, H.; Fuchert, G.; Geiger, J.; Hergenhahn, U.; Höfel, U.; Knauer, J.; Krychowiak, M.; Kwak, S.; Langenberg, A.; Pablant, N.; Pasch, E.; Pavone, A.; Scott, E. R.; Svensson, J.; Trimino Mora, H.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Measurements of the parameter dependencies of the bootstrap current in the W7-X stellarator. Nuclear Fusion 61, 036024 (2021)

Pavone, A.; Svensson, J.; Krychowiak, M.; Hergenhahn, U.; Winters, V.; Kornejew, P.; Kwak, S.; Hoefel, U.; Koenig, R.; Wolf, R. C. et al.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Neural network surrogates of Bayesian diagnostic models for fast inference of plasma parameters. Review of Scientific Instruments 92, 033531 (2021)

Schmitz, O.; Feng, Y.; Jakubowski, M.; König, R.; Krychowiak, M.; Otte, M.; Reimold, F.; Barbui, T.; Biedermann, C.; Bozhenkov, S. et al.; Brezinsek, S.; Buttenschön, B.; Brunner, K. J.; Drewelow, P.; Effenberg, F.; Flom, E.; Frerichs, H.; Ford, O.; Fuchert, G.; Gao, Y.; Gradic, D.; Grulke, O.; Hammond, K. C.; Hergenhahn, U.; Höfel, U.; Knauer, J.; Kornejew, P.; Kremeyer, T.; Niemann, H.; Pasch, E.; Pavone, A.; Perseo, V.; Rudischhauser, L.; Schlisio, G.; Pedersen, T. S.; Wenzel, U.; Winters, V.; Wurden, G. A.; Zhang, D.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Stable heat and particle flux detachment with efficient particle exhaust in the island divertor of Wendelstein 7-X. Nuclear Fusion 61, 016026 (2021)

Weir, G. M.; Xanthopoulos, P.; Hirsch, M.; Höfel, U.; Stange, T.; Pablant, N.; Grulke, O.; Äkäslompolo, S.; Alcuson, J.; Bozhenkov, S. et al.; Beurskens, M.; Dinklage, A.; Fuchert, G.; Geiger, J.; Landreman, M.; Langenberg, A.; Lazerson, S.; Marushchenko, N. B.; Pasch, E.; Schilling, J.; Scott, E. R.; Turkin, Y.; Klinger, T.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Heat pulse propagation and anomalous electron heat transport measurements on the optimized stellarator W7-X. Nuclear Fusion 61, 056001 (2021)

Zanini, M.; Buttenschön, B.; Laqua, H. P.; Thomsen, H.; Stange, T.; Brandt, C.; Braune, H.; Brunner, K. J.; Dinklage, A.; Gao, Y. et al.; Hirsch, M.; Höfel, U.; Knauer, J.; Marsen, S.; Marushchenko, N.; Pavone, A.; Rahbarnia, K.; Schilling, J.; Turkin, Y.; Wolf, R. C.; Zocco, A.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Confinement degradation and plasma loss induced by strong sawtooth crashes at W7-X. Nuclear Fusion 61, 116053 (2021)

Baldzuhn, J.; Damm, H.; Beidler, C. D.; McCarthy , K.; Panadero, N.; Biedermann, C.; Bozhenkov, S. A.; Dinklage, A.; Brunner, K. J.; Fuchert, G. et al.; Kazakov, Y.; Beurskens, M.; Dibon, M.; Geiger, J.; Grulke, O.; Höfel, U.; Klinger, T.; Köchl, F.; Knauer, J.; Kocsis, G.; Kornejew, P.; Lang, P. T.; Langenberg, A.; Laqua, H.; Pablant, N. A.; Pasch, E.; Pedersen, T. S.; Ploeckl, B.; Rahbarnia, K.; Schlisio, G.; Scott, E. R.; Stange, T.; Stechow, A. v.; Szepesi, T.; Turkin, Y.; Wagner, F.; Winters, V.; Wurden, G. A.; Zhang, D.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Enhanced energy confinement after series of pellets in Wendelstein 7-X. Plasma Physics and Controlled Fusion 62, 055012 (2020)

Bozhenkov, S. A.; Kazakov, Y.; Ford, O. P.; Beurskens, M. N. A.; Alcuson, J.; Alonso, J. A.; Baldzuhn, J.; Brandt, C.; Brunner, K. J.; Damm, H. et al.; Fuchert, G.; Geiger, J.; Grulke, O.; Hirsch, M.; Höfel, U.; Huang, Z.; Knauer, J.; Krychowiak, M.; Langenberg, A.; Laqua, H. P.; Lazerson, S.; Marushchenko, N. B.; Moseev, D.; Otte, M.; Pablant, N.; Pasch, E.; Pavone, A.; Proll, J. H. E.; Rahbarnia, K.; Scott, E. R.; Smith, H. M.; Stange, T.; Stechow, A. v.; Thomsen, H.; Turkin, Y.; Wurden, G.; Xanthopoulos, P.; Zhang, D.; Wolf, R. C.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: High-performance plasmas after pellet injections in Wendelstein 7-X. Nuclear Fusion 60, 066011 (2020)

Carreras, B. A.; Garcia, L.; Nicolau, J. H.; Milligen, B. P. v.; Hoefel, U.; Hirsch, M.; TJ-II Team; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Intermittence and turbulence in fusion devices. Plasma Physics and Controlled Fusion 62, 025011 (2020)

Chaudhary, N.; Oosterbeek, J. W.; Hirsch, M.; Höfel, U.; Wolf, R. C.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Investigation of higher harmonics of electron cyclotron emission using Fourier transform spectroscopy in Wendelstein 7-X. Journal of Instrumentation 15, P09024 (2020)

Grahl, M.; Spring, A.; Andreeva, T.; Bluhm, T.; Bozhenkov, S.; Dumke, S.; Geiger, J.; Grulke, O.; Grün, M.; Holtz, A. et al.; Höfel, U.; Laqua, H.; Lewerentz, M.; Riemann, H.; Schilling, J.; Stechow, A. v.; Svensson, J.; Winter, A.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: W7-X logbook REST API for processing experimental metadata and data enrichment at the Wendelstein 7-X stellarator. Fusion Engineering and Design 160, 111819 (2020)

Lazerson, S. A.; Ford, O. P.; Nührenberg, C.; Äkäslompolo, S.; Poloskei, P. Z.; Machielsen, M.; McNeely, P.; Vano, L.; Rust, N.; Bozhenkov, S. et al.; Neelis, T. W. C.; Graves, J. P.; Pfefferle, D.; Spanier, A.; Hartmann, D.; Marushchenko, N.; Turkin, Y.; Hirsch, M.; Chaudhary, N.; Hoefel, U.; Stange, T.; Weir, G.; Pablant, N.; Langenberg, A.; Traverso, P.; Valson, P.; Knauer, J.; Brunner, K. J.; Pasch, E.; Beurskens, M.; Damm, H.; Fuchert, G.; Nelde, P.; Scott, E.; Hergenhahn, U.; Pavone, A.; Rahbarnia, K.; Andreeva, T.; Schilling, J.; Brandt, C.; Neuner, U.; Thomsen, H.; Jakubowski, M.; Ali, A.; Gao, Y.; Niemann, H.; Puig Sitjes, A.; Koenig, R.; Wolf, R. C.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Validation of the BEAMS3D neutral beam deposition model on Wendelstein 7-X. Nuclear Fusion 60, 076020 (2020)

Pablant, N.; Langenberg, A.; Alonso, A.; Baldzuhn, J.; Beidler, C. D.; Bozhenkov, S.; Burhenn, R.; Brunner, K. J.; Dinklage, A.; Fuchert, G. et al.; Ford, O.; Gates, D. A.; Geiger, J.; Hirsch, M.; Höfel, U.; Kazakov, Y. O.; Knauer, J.; Krychowiak, M.; Laqua, H.; Landreman, M.; Lazerson, S.; Maaßberg, H.; Marchuck, O.; Mollen, A.; Pasch, E.; Pavone, A.; Satake, S.; Schröder, T.; Smith, H. M.; Svensson, J.; Traverso, P.; Turkin, Y.; Velasco, J. L.; Stechow, A. v.; Warmer, F.; Weir, G.; Wolf, R. C.; Zhang, D.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Investigation of the neoclassical ambipolar electric field in ion-root plasmas on W7-X. Nuclear Fusion 60, 036021 (2020)