Publications of J. Geiger

Journal Article (199)

1.
Journal Article
Endler, M.; Riße, K.; Geiger, J.; Rahbarnia, K.; Schneider, M.; Bykov, V.; Khokhlov, M.; Zhang, D.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Impact of plasma diamagnetism and plasma currents on the superconducting field coils in Wendelstein 7-X. Fusion Engineering and Design 211, 114786 (2025)
2.
Journal Article
Ham, L. v.; Lazerson, S. A.; Schmitt, J. C.; Lee, B. F.; Beurskens, M.; Brunner, K. J.; Chaudhary, N.; Fuchert, G.; Geiger, J.; Hirsch, M. et al.: Modeling resistive-inductive evolution of currents in Wendelstein 7-X. Nuclear Fusion 65, 036001 (2025)
3.
Journal Article
Krämer-Flecken, A.; Proll, J. H. E.; Weir, G.; Costello, P.; Fuchert, G.; Geiger, J.; Heuraux, S.; Knieps, A.; Langenberg, A.; Vaz Mendes, S. et al.: Observation and characterisation of trapped electron modes in Wendelstein 7-X. Plasma Physics and Controlled Fusion 67, 025014 (2025)
4.
Journal Article
Kuczynski, M. D.; Kleiber, R.; Smith, H. M.; Helander, P.; Beidler, C. D.; Wappl, M.; Borchardt, M.; Geiger, J.; Bozhenkov, S.; Langenberg, A. et al.: Assessment of validity of local neoclassical transport theory for studies of electric-field root-transitions in the W7-X stellarator. Nuclear Fusion 65, 016019 (2025)
5.
Journal Article
Beidler, C. D.; Drevlak, M.; Geiger, J.; Helander, P.; Smith, H. M.; Turkin, Y.: Reduction of neoclassical bulk-ion transport to avoid helium-ash retention in stellarator reactors. Nuclear Fusion 64, 126030 (2024)
6.
Journal Article
Chaudhary, N.; Hirsch, M.; Andreeva, T.; Geiger, J.; Wolf, R. C.; Wurden, G. A.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Electron transport barrier and high confinement in configurations with internal islands close to the plasma edge of W7-X. Nuclear Fusion 64, 106038 (2024)
7.
Journal Article
Feng, Y.; Winters, V.; Zhang, D.; Geiger, J.; Gao, Y.; Reiter, D.; Helander, P.; Beidler, C. D.; Endler, M.; Gradic, D. et al.: Conditions and benefits of X-point radiation for the island divertor. Nuclear Fusion 64, 086027 (2024)
8.
Journal Article
Gao, Y.; Geiger, J.; Jakubowski, M. W.; Pandey, A.; Bozhenkov, S.; Feng, Y.; Endler, M.; Baldzuhn, J.; Perseo, V.; Kremeyer, T. et al.: Heat and particle exhaust in high-performance plasmas in Wendelstein 7-X. Nuclear Fusion 64, 076060 (2024)
9.
Journal Article
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)
10.
Journal Article
Kuczynski, M. D.; Kleiber, R.; Smith, H. M.; Beidler, C. D.; Borchardt, M.; Geiger, J.; Helander, P.: Self-consistent, global, neoclassical radial-electric-field calculations of electron-ion-root transitions in the W7-X stellarator. Nuclear Fusion 64, 046023 (2024)
11.
Journal Article
Lazerson, S. A.; Geiger, J.; Kulla, D.; LeViness, A.; Bozhenkov, S.; Killer, C.; Ogawa, K.; Isobe, M.; McNeely, P.; Rust, N. et al.: Fast ion confinement in the presence of core magnetic islands in Wendelstein 7-X. Plasma Physics and Controlled Fusion 66, 075017 (2024)
12.
Journal Article
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)
13.
Journal Article
Gao, Y.; Feng, Y.; Endler, M.; Jakubowski, M. W.; Geiger, J.; Bozhenkov, S.; Puig Sitjes, A.; Pisano, F.; Dhard, C. P.; Naujoks, D. et al.: Improvement in the simulation tools for heat distribution predictions and control of baffle and middle divertor loads in Wendelstein 7-X. Nuclear Fusion 63, 026031 (2023)
14.
Journal Article
Schilling, J.; Svensson, J.; Höfel, U.; Geiger, J.; Thomsen, H.: Biot-Savart routines with minimal floating point error. Computer Physics Communications 287, 108692 (2023)
15.
Journal Article
Xu, S.; Liang, Y.; Knieps, A.; Zhou, S.; Feng, Y.; Reiter, D.; Suzuki, Y.; Jia, M.; Geiger, J.; Reimold, F. et al.: Modeling of plasma beta effects on the island divertor transport in the standard configuration of W7-X. Nuclear Fusion 63, 066005 (2023)
16.
Journal Article
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)
17.
Journal Article
Aleynikova, K.; Zocco, A.; Geiger, J.: Influence of magnetic configuration properties on kinetic ballooning modes in W7-X. Journal of Plasma Physics 88 (4), 905880411 (2022)
18.
Journal Article
Alonso, J. A.; Ford, O. P.; Vano, L.; Äkäslompolo, S.; Buller, S.; McDermott, R.; Smith, H. M.; Baldzuhn, J.; Beidler, C. D.; Beurskens, M. et al.: Plasma flow measurements based on charge exchange recombination spectroscopy in the Wendelstein 7-X stellarator. Nuclear Fusion 62, 106005 (2022)
19.
Journal Article
Andreeva, T.; Geiger, J.; Dinklage, A.; Wurden, G.; Thomsen, H.; Rahbarnia, K.; Schmitt, J. C.; Hirsch, M.; Fuchert, G.; Nührenberg, C. et al.: Magnetic configuration scans during divertor operation of Wendelstein 7-X. Nuclear Fusion 62, 026032 (2022)
20.
Journal Article
Gonzalez-Jerez, A.; Xanthopoulos, P.; Garcia-Regana, J. M.; Calvo, I.; Alcuson, J.; Banon Navarro, A.; Barnes, M.; Parra, F. I.; Geiger, J.: Electrostatic gyrokinetic simulations in Wendelstein 7-X geometry: benchmark between the codes stella and GENE. Journal of Plasma Physics 88 (3), 905880310 (2022)