Publications Prof. Dr. Per Helander

Aleynikova, K.; Hudson, S. R.; Helander, P.; Kumar, A.; Geiger, J.; Hirsch, M.; Loizu, J.; Nührenberg, C.; Rahbarnia, K.; Qu, Z. et al.; Gao, Y.; Thomsen, H.; Turkin, Y.; Zanini, M.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Model for current drive induced crash cycles in W7-X. Nuclear Fusion 61, 126040 (2021)

Arnold, A. M.; Aleynikov, P.; Helander, P.: Self-similar expansion of a plasmoid supplied by pellet ablation. Plasma Physics and Controlled Fusion 63, 095008 (2021)

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)

Feng, Y.; Jakubowski, M.; König, R.; Krychowiak, M.; Otte, M.; Reimold, F.; Reiter, D.; Schmitz, O.; Zhang, D.; Beidler, C. D. et al.; Biedermann, C.; Bozhenkov, S.; Brunner, K. J.; Dinklage, A.; Drewelow, P.; Effenberg, F.; Endler, M.; Fuchert, G.; Gao, Y.; Geiger, J.; Hammond, K. C.; Helander, P.; Killer, C.; Knauer, J.; Kremeyer, T.; Pasch, E.; Rudischhauser, L.; Schlisio, G.; Pedersen, T. S.; Wenzel, U.; Winters, V.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Understanding detachment of the W7-X island divertor. Nuclear Fusion 61, 086012 (2021)

Helander, P.; Plunk, G. G.: Upper Bounds on Gyrokinetic Instabilities in Magnetized Plasmas. Physical Review Letters 127, 155001 (2021)

Henneberg, S. A.; Helander, P.; Drevlak, M.: Representing the boundary of stellarator plasmas. Journal of Plasma Physics 87 (5), 905870503 (2021)

Henneberg, S.; Hudson, S. R.; Pfefferle, D.; Helander, P.: Combined plasma-coil optimization algorithms. Journal of Plasma Physics 87 (2), 905870226 (2021)

Kennedy, D.; Helander, P.: Coulomb collisions in strongly anisotropic plasmas II. Cyclotron cooling in laboratory pair plasmas. Journal of Plasma Physics 87 (1), 905870106 (2021)

Kennedy, D.; Helander, P.: Coulomb collisions in strongly anisotropic plasmas I. Cyclotron cooling in electron–ion plasmas. Journal of Plasma Physics 87 (1), 905870107 (2021)

Runov, A.; Aleynikov, P.; Arnold, A. M.; Breizman, B. N.; Helander, P.: Modelling of parallel dynamics of a pellet-produced plasmoid. Journal of Plasma Physics 87 (4), 905870407 (2021)

Zocco, A.; Helander, P.; Weitzner, H.: Magnetic reconnection in 3D fusion devices: non-linear reduced equations and linear current-driven instabilities. Plasma Physics and Controlled Fusion 63, 025001 (2021)

Zocco, A.; Mishchenko, A.; Nührenberg, C.; Könies, A.; Kleiber, R.; Borchardt, M.; Slaby, C.; Zanini, M.; Stange, T.; Laqua, H. P. et al.; Rahbarnia, K.; Thomsen, H.; Wolf, R. C.; Helander, P.; Hatzky, R.; Cole, M. D. J.: W7-X and the sawtooth instability: towards realistic simulations of current-driven magnetic reconnection. Nuclear Fusion 61, 086001 (2021)

Aleynikov, P.; Arnold, A. M.; Breizman, B.N.; Helander, P.; Runov, A.: Energy Balance during Pellet Assimilation. Theory and Simulation of Disruptions Workshop (TSDW 2021), Virtual (2021)

Aleynikova, K.; Hudson, S.; Helander, P.; Geiger, J.; Kumar, A.; Loizu, J.; Nührenberg, C.; Rahbarnia, K.; Qu, Z.; Gao, Y. et al.; Thomsen, H.; Turkin, Y.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Model for current drive induced crash cycles in W7-X. 2021 MPPC Annual Meeting (Max-Planck Princeton Center), Virtual (2021)

Breizman, B. N.; Kiramov, D. I.; Fontanilla, A. K.; Aleynikov, P. B.; Helander, P.; Oliver, H. J. C.; Sharapov, S. E.: Pellet Physics in Plasmas. 4th Asia Pacific Conference on Plasma Physics (AAPPS-DPP 2020), Virtual (2021)

Buller, S.; Helander, P.; Smith, H.; Mollen, A.; Newton, S.; Puszai, I.: Recent progress on neoclassical impurity transport in stellarators with implications for a stellarator reactor. Joint Varenna-Lausanne International Workshop on Theory of Fusion Plasmas, Lausanne (submitted)

Helander, P.: On stellarator optimisation. 5th Asia Pacific Conference on Plasma Physics (AAPPS-DPP 2020) , Virtual (2021)

Helander, P.: Stellarators: what next? 30th International Toki Conference on Plasma and Fusion Research (ITC 30), Virtual (2021)

Helander, P.; Drevlak, M.; Zarnstorff, M.; Cowley, S. C.: Stellarators with Permanent Magnets. Joint Varenna-Lausanne International Workshop on Theory of Fusion Plasmas, Lausanne (2021)

Henneberg, S.; Hudson, S. R.; Pfefferle, D.; Helander, P.: Algorithms for Combined Free-Boundary Plasma & Coil Optimization. 2021 MPPC Annual Meeting (Max-Planck Princeton Center), Virtual (2021)