Publications of J. Geiger

Drevlak, M.; Beidler, C. D.; Geiger, J.; Helander, P.; Turkin, Y.: Stellarator Optimisation: Equilibrium and Coils. Hangzhou International Stellarator Workshop (HISW2018), Hangzhou (submitted)

Effenberg, F.; Brezinsek, S.; Feng, Y.; Jakubowski, M. W.; König, R.; Krychowiak, M.; Schmitz, O.; Suzuki, Y.; Zhang, D.; Ali, A. et al.; Barbui, T.; Biedermann, C.; Blackwell, D. B.; Burhenn, R.; Cseh, G.; Dittmar, T.; Drewelow, P.; Endler, M.; Frerichs, H.; Gao, Y.; Geiger, J.; Hammond, K.; Killer, C.; Kocsis, G.; Lore, J. D.; Niemann, H.; Otte, M.; Puig Sitjes, A.; Rudischhauser, L.; Schmitt, J. C.; Pedersen, T. S.; Szepesi, T.; Wenzel, U.; Winters, V.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Demonstration of Power Exhaust Control by Impurity Seeding in the Island Divertor at Wendelstein 7-X. 27th IAEA Fusion Energy Conference (FEC 2018), Gandhinagar (submitted)

Gao, Y.; Jakubowski, M.; Geiger, J.; Endler, M.; Drewelow, P.; Bozhenkov, S.; Hammond, K.; Rahbarnia, K.; Puig Sitjes, A.; Pisano, F. et al.; Niemann, H.; Ali, A.; Thomsen, H.; Andreeva, T.; Neuner, U.; Schilling, J.; Rack, M.; Liang, Y.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Effects of toroidal plasma currents on the strike-line movements on W7-X. 45th EPS Conference on Plasma Physics, Prague (submitted)

Hirsch, M.; Höfel, U.; Oosterbeek, J. W.; Chaudhary, N.; Geiger, J.; Hartfuss, H.-J.; Marushchenko, N.; Milligen, B. P. v.; Stange, T.; Svensson, J. et al.; Tsuchiya, H.; Weir, G. M.; Wolf, R. C.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: ECE Diagnostic and Measurements during initial Operation of Wendelstein 7-X. 20th Joint Workshop on Electron Cyclotron Emission (ECE) and Electron Cyclotron Resonance Heating (ECRH) (EC-20), Greifswald (submitted)

Krämer-Flecken, A.; Han, X.; Windisch, T.; Cosfeld, J.; Drews, P.; Fuchert, G.; Geiger, J.; Grulke, O.; Killer, C.; Knieps, A. et al.; Liang, Y.; Liu, S.; Rack, M.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Investigation of turbulence rotation and radial electric field in the island divertor and plasma edge at W7-X. 19th International Congress on Plasma Physics (ICPP 2018), Vancouver (submitted)

Marushchenko, N. B.; Aleynikov, P.; Beidler, C. D.; Dinklage, A.; Geiger, J.; Helander, P.; Laqua, H. P.; Maaßberg, H.; Turkin, Y.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Mixed Scenarios with X3 heating in W7-X. 20th Joint Workshop on Electron Cyclotron Emission (ECE) and Electron Cyclotron Resonance Heating (ECRH) (EC-20), Greifswald (submitted)

Biedermann, C.; Ali, A.; Alonso, A.; Andreeva, T.; Baldzuhn, J.; Barbui, T.; Beurskens, M.; Biel, W.; Blackwell, B. D.; Bosch, H.-S. et al.; Bozhenkov, S.; Brakel, R.; Bräuer, T.; Brotas de Carvalho, B.; Burhenn, R.; Buttenschön, B.; Cappa, A.; Cseh, G.; Czarneck, A.; Dinklage, A.; Drews, P.; Dzikowicka, A.; Effenberg, F.; Endler, M.; Erckmann, V.; Estrada, T.; Ford, O.; Fornal, T.; Frerichs, H.; Fuchert, G.; Geiger, J.; Grulke, O.; Harris, J. H.; Hartfuss, H. J.; Hartmann, D.; Hathiramani, D.; Hirsch, M.; Höfel, U.; Jablonski, S.; Jakubowski, M. W.; Kaczmarczyk, J.; Klinger, T.; Klose, S.; Knauer, J.; Kocsis, G.; König, R.; Kornejew, P.; Krämer-Flecken, A.; Krawczyk, N.; Kremeyer, T.; Ksiazek, I.; Kubkowska, M.; Krychowiak, M.; Langenberg, A.; Laqua, H. P.; Laux, M.; Lazerson, S.; Liang, Y.; Liu, S. C.; Lorenz, A.; Marchuk, A. O.; Marsen, S.; Moncada, V.; Naujoks, D.; Neilson, H.; Neubauer, O.; Neuner, U.; Niemann, H.; Oosterbeek, J. W.; Otte, M.; Pablant, N.; Pasch, E.; Pedersen, T. S.; Pisano, F.; Rahbarnia, K.; Ryc, L.; Schmitz, O.; Schmuck, S.; Schneider, W.; Schröder, T.; Schuhmacher, H.; Schweer, B.; Standley, B.; Stange, T.; Stephey, L.; Svensson, J.; Szabolics, T.; Szepesi, T.; Thomsen, H.; Travere, J.-M.; Trimino Mora, H.; Tsuchiya, H.; Weir, G. M.; Wenzel, U.; Werner, A.; Wiegel, B.; Windisch, T.; Wolf, R. C.; Wurden, G. A.; Zhang, D.; Zimbal, A.; Zoletnik, S.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Overview of the diagnostics and results of the initial operation of Wendelstein 7-X. International Conference on Research and Application of Plasmas (Plasma 2017), Warsaw (submitted)

Dinklage, A.; Helander, P.; Maassberg, H.; Pedersen, T. S.; Rahbarnia, K.; Turkin, Y.; Wolf, R.; Alonso, A.; Bozhenkov, S.; Beidler, C. D. et al.; Czarnecka, A.; Effenberg, F.; Feng, Y.; Fuchert, G.; Geiger, J.; Hirsch, M.; Höfel, U.; Jakubowski, M.; Klinger, T.; Knauer, J.; Krämer-Flecken, A.; Kubkowska, M.; Marushchenko, N.; Niemann, H.; Pasch, E.; Pablant, N.; Rudischhauser, L.; Schmitz, O.; Smith, H.; Windisch, T.; Wurden, G.; Zhang, D.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Effects of first magnetic configuration changes on W7-X. 21st International Stellarator-Heliotron Workshop (ISHW 2017), Kyoto (submitted)

Drews, P.; Knieps, A.; Niemann, H.; Cosfeld, J.; Blackwell, B. D.; Brezinsek, S.; Endler, M.; Gao, Y.; Geiger, J.; Grulke, O. et al.; Hammond, K. C.; Henkel, M.; Höschen, D.; Jakubowski, M.; Killer, C.; König, R.; Krämer-Flecken, A.; Liang, Y.; Liu, S.; Nicolai, D.; Neubauer, O.; Rack, M.; Ström, P.; Satheeswaran, G.; Cai, J.; Rudischhauser, L.; Sandri, N.; Windisch, T.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Edge plasma measurements on the Op. 1.2 divertor plasmas at W7-X using the upgraded combined probe. 23rd International Conference on Plasma Surface Interactions in Controlled Fusion Devices (PSI 23), Princeton, NJ (submitted)

Drews, P.; Niemann, H.; Rudischhauser, L.; Liang, Y.; Neubauer, O.; Geiger, J.; Rack, M.; Cosfeld, J.; Liu, S.; Wang, N. et al.; Nicolai, D.; Kraemer-Flecken, A.; Grulke, O.; Charl, A.; Schweer, B.; Gao, Y.; Hollfeld, K.; Satheeswaran, G.; Sandri, N.; Hoeschen, D.: Topology effects on the edge heat and particle transport in the limiter plasma on W7-X. 643rd Wilhelm and Else Heraeus Seminar "Impact of 3D Magnetic Fields on Hot Plasmas", Bad Honnef (submitted)

Effenberg, F.; Brezinsek, S.; Feng, Y.; Jakubowski, M.; König, R.; Krychowiak, M.; Schmitz, O.; Ali, A.; Barbui, T.; Biedermann, C. et al.; Bozhenkov, S. A.; Drewelow, P.; Frerichs, H.; Gao, Y.; Geiger, J.; Kocsis, G.; Niemann, H.; Pedersen, T. S.; Puig Sitjes, A.; Suzuki, Y.; Szepesi, T.; Wenzel, U.; Winters, V.; Wurden, G. A.; Zhang, D.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Exploration of Radiative Edge Cooling in the Island Divertor at Wendelstein 7-X. 23rd International Conference on Plasma Surface Interactions in Controlled Fusion Devices (PSI 23), Princeton, NJ (submitted)

Fuchert, G.; Alonso, A.; Beidler, C. D.; Bozhenkov, S. A.; Beurskens, M.; Dinklage, A.; Feng, Y.; Ford, O. P.; Geiger, J.; Helander, P. et al.; Hirsch, M.; Höfel, U.; Jakubowski, M. W.; Knauer, J.; Kornejew, P.; Langenberg, A.; Laqua, H. P.; Maassberg, H.; Marushchenko, N. B.; Moseev, D.; Niemann, H.; Pablant, N.; Pasch, E.; Rahbarnia, K.; Stange, T.; Svensson, J.; Trimino Mora, H.; Turkin, Y.; Weir, G. M.; Wurden, G.; Zhang, D.; Wolf, R. C.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Confinement studies in the limiter phase ofWendelstein 7-X. 44th EPS Conference on Plasma Physics, Belfast (submitted)

Geiger, J.; Beidler, C. D.; Feng, Y.; Marushchenko, N. B.; Turkin, Y.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Plasma Equilibrium and core confinement on W7-X with an island divertor. 643rd Wilhelm and Else Heraeus Seminar "Impact of 3D Magnetic Fields on Hot Plasmas", Bad Honnef (submitted)

Grahl, M.; Svensson, J.; Werner, A.; Andreeva, T.; Bozhenkov, S.; Drevlak, M.; Geiger, J.; Krychowiak, M.; Turkin, Y.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Web Services for 3D MHD Equilibrium Data at Wendelstein 7-X. 27th IEEE Symposium on Fusion Engineering (SOFE 2017), Shanghai (submitted)

Lazerson, S.; Otte, M.; Bozhenkov, S.; Wurden, G.; Jakubowski, M.; Wenzel, U.; Andreeva, T.; Biedermann, C.; Kocsis, G.; Szepesi, T. et al.; Geiger, J.; Pedersen, T. S.; Gates, D.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Error Fields in Stellarators. 21st International Stellarator-Heliotron Workshop (ISHW 2017), Kyoto (submitted)

Loizu, J.; Hudson, S. R.; Nührenberg, C.; Geiger, J.: Equilibrium β-limits in classical stellarators. 1st JPP Frontiers in Plasma Physics Conference, Spineto (2017)

Loizu, J.; Hudson, S. R.; Nührenberg, C.; Geiger, J.: Ideal and Relaxed equilibrium β-limits in classical stellarators. 21st International Stellarator-Heliotron Workshop (ISHW 2017), Kyoto (submitted)

Lore, J. D.; Harris, J. H.; Lumsdaine, A.; Effenberg, F.; Frerichs, H.; Stephey, L.; Wurden, G.; Fellinger, J.; Geiger, J.; Hölbe, H. et al.; Jakubowski, M.; Boscary, J.; Loesser, G.; Sibilia, M.; Titus, P.; Zhang, H.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Modeling and Experimental Validation of Physics Enabled by W7-X Scraper Element Divertor Components. 27th IEEE Symposium on Fusion Engineering (SOFE 2017), Shanghai (submitted)

Pablant, N.; Bozhenkov, S.; Dinklage, A.; Fuchert, G.; Landreman, M.; Langenberg, A.; Alonso, A.; Beidler, C. D.; Beurskens, M.; Bitter, M. et al.; Burhenn, R.; Delgado-Aparicio, L. F.; Gates, D. A.; Geiger, J.; Hill, K. W.; Hirsch, M.; Höfel, U.; Knauer, J.; Krämer-Flecken, A.; Lazerson, S.; Maaßberg, H.; Marchuk, O.; Marushchenko, N. B.; Mittelstaedt, J.; Mikkelsen, D. R.; Pasch, E.; Satake, S.; Smith, H.; Svensson, J.; Traverso, P.; Turkin, Y.; Valson, P.; Velasco, J. L.; Weir, G. M.; Windisch, T.; Wolf, R. C.; Yokoyama, M.; Zhang, D.; Pedersen, T. S.: Initial investigation of core transport during the first W7-X experimental campaign. 44th IEEE International Conference on Plasma Science (ICOPS), Atlantic City, NJ (submitted)

Sinha, P.; Hölbe, H.; Geiger, J.; Turkin, Y.; Pedersen, T. S.: Development of Heating Scenario to Reduce the Impact of Bootstrap Currents in Wendelstein 7-X. 82. Jahrestagung der DPG und DPG-Frühjahrstagung der Sektion AMOP, Erlangen (submitted)