Publications of J. Geiger

Kharwandikar, A.; Boeckenhoff, D.; Bold, D.; Gao, Y.; Geiger, J.; Knieps, A.; Naujoks, D.; Pedersen, T. S.; Reimold, F.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Effect of W7-X divertor geometry modifications on PFC heat loads. 25th International Conference on Plasma Surface Interaction in Controlled Fusion Devices (PSI 25), Jeju (submitted)

Krämer-Flecken, A.; Andreeva, T.; Estrada, T.; Geiger, J.; Han, X.; Mendes, S.; Rahbarnia, K.; Trier, E.; Weir, G.; Windisch, T. et al.; Wurden, G.; Xiang, H.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Plasma current crashes and the associated dynamics of the 5/5-island chain in W7-X. 25th Joint EU-US Transport Task Force Meeting, Virtual (submitted)

Schmitt, J. C.; Kriete, M.; Andreeva, T.; Geiger, J.; Grahl, M.; Schilling, J.; Thomsen, H.; Flom, E.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Coordinate maps, ∇Ψ_toroidal, and B × ∇Ψ_toroidal vectors for 5/6, 5/5 and 5/4 island domains in W7-X. 63rd Annual Meeting of the APS Division of Plasma Physics, Pittsburgh, PA (submitted)

Weir, G. M.; Windisch, T.; Krämer-Flecken, A.; Grulke, O.; Xanthopoulos, P.; Alcuson, J.; Proll, J. H. E.; Bozhenkov, S.; Beurskens, M.; Dinklage, A. et al.; Fuchert, G.; Geiger, J.; Hirsch, M.; Höfel, U.; Langenberg, A.; Lazerson, S.; Marushchenko, N. B.; Pablant, N.; Pasch, E.; Plaum, B.; Stange, T.; Turkin, Y.; Warmer, F.; Zeitler, A.; Zhang, D.; Klinger, T.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Core electron heat transport measurements on Wendelstein 7-X and correlation microwave diagnostics for Operational Phase 2. 25th Joint EU-US Transport Task Force Meeting, Virtual (submitted)

Dinklage, A.; Fuchert, G.; Wolf, R. C.; Alonso, A.; Andreeva, T.; Beidler, C. D.; Baar, M. R. d.; Gao, Y.; Geiger, J.; Jakubowski, M. et al.; Laqua, H.; Marushchenko, N.; Neuner, U.; Pablant , N.; Pavone, A.; Rahbarnia, K.; Schmitt, J.; Smith, H.; Stange, T.; Turkin, Y.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Theory-based Models for the Control of W7-X Divertor Plasmas. 28th IAEA Fusion Energy Conference (FEC 2020), Virtual (submitted)

Drews, P.; Killer, C.; Knieps, A.; Reimold, F.; Zhang, D.; Brezinsek, S.; Jakubowski, M.; Cosfeld, J.; Endler, M.; Hammond, K. et al.; Henkel, M.; Geiger, J.; Grulke, O.; König, R.; Krämer-Flecken, A.; Liang, Y.; Liu, S.; Nicolai, D.; Satheeswaran, G.; Neubauer, O.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Current effect on the edge profiles in the island remnant at W7-X. 47th EPS Conference on Plasma Physics, Virtual (submitted)

Gao, Y.; Geiger, J.; Jakubowski, M.; Bozhenkov, S.; Feng, Y.; Endler, M.; Lazerson, S.; Drewelow, P.; Puig Sitjes, A.; Pisano, F. et al.; Niemann, H.; Knieps, A.; Suzuki, Y.; Liang, Y.; Cannas, B.; Pedersen, T. S.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Influences of plasma dynamics on 3D divertor power distributions. 47th EPS Conference on Plasma Physics, Virtual (submitted)

Geiger, J.; Andreeva, T.; Dinklage, A.; Hirsch, M.; Suzuki, Y.; Wurden, G.; Alonso, A.; Beidler, C. D.; Beurskens, M. N. A.; Bozhenkov, S. et al.; Brakel, R.; Brandt, C.; Brunner, K. J.; Burhenn, R.; Bykov, V.; Fuchert, G.; Grahl, M.; Grulke, O.; Höfel, U.; Jakubowski, M.; Klinger, T.; Knauer, J.; Kocsis, G.; Krämer-Flecken, A.; Langenberg, A.; Lazerson, S.; Neuner, U.; Nührenberg, C.; Pablant, N.; Rahbarnia, K.; Schilling, J.; Schmitt, J. C.; Thomsen, H.; Trier, E.; Vecsei, M.; Windisch, T.; Zhu, J.; Zoletnik, S.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Confinement and Equilibrium with Internal Islands in a Configuration Scan with Respect to IOTA in W7-X. 28th IAEA Fusion Energy Conference (FEC 2020), Virtual (submitted)

Han, X.; Krämer-Flecken, A.; Trier, E.; Windisch, T.; Xiang, H.; Liang, Y.; Fuchert, G.; Geiger, J.; Grulke, O.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Validation of an elliptic model for the turbulence velocity estimation via the correlation reflectometer measurement. 47th EPS Conference on Plasma Physics, Virtual (submitted)

Huang, Z.; Liang, Y.; Knieps, A.; Drews, P.; Killer, C.; Nicolai, D.; Geiger, J.; Höschen, D.; Satheeswaran, G.; Liu, S. C. et al.; Grulke, O.; Jakubowski, M.; Brezinsek, S.; Neubauer, O.; Schweer, B.; Li, Y. L.; Cai, J. Q.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Characteristics of the SOL magnetic fluctuation in the divertor plasma operation of W7-X. 47th EPS Conference on Plasma Physics, Virtual (submitted)

Knieps, A.; Liang, Y.; Suzuki, Y.; Andreeva, T.; Drews, P.; Gao, Y.; Geiger, J.; Grulke, O.; Hollfeld, K.-P.; Jakubowski, M. et al.; Killer c., C.; Neubauer, O.; Nicolai, D.; Neuner, U.; Niemann, H.; Huang, Z.; Rahbarnia, K.; Satheeswaran, G.; Schilling, J.; Thomsen, H.; Zhou, S.: Changes in the edge magnetic field of Wendelstein 7-X in high-beta plasmas. 47th EPS Conference on Plasma Physics, Virtual (submitted)

Liang, Y.; Knieps, A.; Suzuki, Y.; Xu, S.; Drews, P.; Gao, Y.; Liu, S.; Huang, Z.; Zhou, S.; Henkel, M. et al.; Wang, E.; Sereda, S.; Li, Y.; Han, X.; Xiang, H.; Krämer-Flecken, A.; Geiger, J.; Feng, Y.; König, R.; Jakubowski, M.; Killer, C.; Kobayashi, T.; Masuzaki, S.; Nicolai, D.; Satheeswaran, G.; Neubauer, O.; Linsmeier, C.: Leveraging 3D Magnetic Topologies in Support of Long-pulse High Performance Plasma Operation. 28th IAEA Fusion Energy Conference (FEC 2020), Virtual (submitted)

Schmitt, J. C.; Andreeva, T.; Geiger, J.; Lazerson, S.; Maurer, D.; Neuner, U.; Pablant, N.; Rahbarnia, K.; Schilling, J.; Turkin, Y. et al.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Reconstructions of toroidal current profiles for bootstrap current discharges in Wendelstein 7-X. 47th EPS Conference on Plasma Physics, Virtual (submitted)

Schmitt, J.; Maurer, D.; Pablant, N.; Andreeva, T.; Geiger, J.; Lazerson, S.; Neuner, U.; Rahbarnia, K.; Schilling, J.; Thomsen, H. et al.; Turkin, Y.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Reconstructions of toroidal current profiles for bootstrap current discharges in Wendelstein 7-X. 62nd Annual Meeting of the APS Division of Plasma Physics, Virtual Edition (submitted)

Tanaka, K.; Warmer, F.; Nunami, M.; Ohtani, Y.; Nakata, M.; Tsujimura, T.; Yoshinuma, M.; Takahashi, H.; Yanai, R.; Shimozuma, T. et al.; Yokoyama, M.; Seki, R.; Satake, S.; Sugama, H.; Tokuzawa, T.; Yasuhara, R.; Takemura, Y.; Funaba, H.; Yamada, I.; Ida, K.; Peterson, B.; Suzuki, Y.; Kubo, S.; Suzuki, C.; Osakabe, M.; Morisaki, T.; Yamada, H.; Xanthopoulos, P.; Helander, P.; Beidler, C. D.; Stange, T.; Smith, H.; Turkin, Y.; Brunner, K. J.; Stechow, A. v.; Geiger, J.; Pablant, N.; Langenberg, A.; Pasch, E.; Fuchert, G.; Bozhenkov, S.; Scott, E.; Wolf, R. C.; Plunk, G.; Zhang, D.: Magnetic Configuration Effects on Turbulence Driven Transport from LHD and W7-X Identical Experiments. 28th IAEA Fusion Energy Conference (FEC 2020), Virtual (submitted)

Äkäslompolo, S.; Ali, A.; Baldzuhn, J.; Biedermann, C.; Bozhenkov, S.; Dhard, C. P.; Drewelow, P.; Endler, M.; Fellinger, J.; Ford, O. et al.; Gao, Y.; Geiger, B.; Geiger, J.; Hartmann, D.; Isobe, M.; Jakubowski, M.; Killer, C.; Kontula, J.; Kurki-Suonio, T.; Lazerson, S.; McNeely, P.; Neelis, T. W. C.; Niemann, H.; Kazakov, Y.; Ogawa, K.; Pisano, F.; Poloskei, P. Z.; Rahbarnia, K.; Rust, N.; Schmitt, J.; Puig Sitjes, A.; Sleczka, M.; Vano, L.; Vuuren, A. v.; Wurden, G.; Wolf, R. C.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Validating the ASCOT modelling of NBI fast ions in Wendelstein 7-X. 3rd European Conference on Plasma Diagnostics (ECPD 2019), Lisbon (submitted)

Andreeva, T.; Hirsch, M.; Wurden, G.; Alonso, A.; Beidler, C.; Bozhenkov, S.; Brakel, R.; Brandt, C.; Burhenn, R.; Bykov, V. et al.; Dinklage, A.; Fuchert, G.; Geiger, J.; Grahl, M.; Grulke, O.; Jakubowski, M.; Kocsis, G.; Klinger, T.; Krämer-Flecken, A.; Lazerson, S.; Neuner, U.; Rahbarnia, K.; Thomsen, H.; Trier, E.; Zhu, J.; Zoletnik, S.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Mode observations and confinement characterization during configuration scans in Wendelstein 7-X. 46th EPS Conference on Plasma Physics, Milan (submitted)

Effenberg, F.; Brezinsek, S.; Feng, Y.; Frerichs, H.; Geiger, J.; Jakubowski, M.; König, R.; Krychowiak, M.; Lore, J.D.; Naujoks, D. et al.; Niemann, H.; Reimold, F.; Schmitt, J.C.; Schmitz, O.; Pedersen, T. S.; Wurden, G.A.; Zhang, D.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Development of impurity seeding for divertor power flux handling in Wendelstein 7-X long-pulse scenarios. 19th International Conference on Fusion Reactor Materials (ICFRM-19), La Jolla, CA (submitted)

Gao, Y.; Jakubowski, M. W.; König, R.; Endler, M.; Otte, M.; Naujoks, D.; Dhard, C. P.; Geiger, J.; Feng, Y.; Rack, M. et al.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Understanding and potential methods to mitigate baffle overloads observed on W7-X. 22nd International Stellarator and Heliotron Workshop 2019 (ISHW 2019), Madison, WI (submitted)

Gao, Y.; Jakubowski, M.; Zanini, M.; Geiger, J.; Drewelow, P.; Niemann, H.; Laqua, H. P.; Stange, T.; Marsen, S.; Rahbarnia, K. et al.; Pisano, F.; Cannas, B.; Puig Sitjes, A.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: ECCD effects on the divertor power distributions on W7-X. 46th EPS Conference on Plasma Physics, Milan (submitted)