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Helander, P.: Understanding energy confinement in Wendelstein 7-X. 62nd Annual Meeting of the APS Division of Plasma Physics, Virtual Edition (submitted)

Helander, P.: Mathematical description of stellarators. 1st Annual Meeting of the Simons Collaboration on Hidden Symmetries and Fusion Energy, New York, NY (submitted)

Helander, P.: Available energy in stellarators and tokamaks. Talk at the Courant Institute of Mathematical Sciences, New York, NY (submitted)

Helander, P.: Available energy in stellarators and tokamaks. Plasma Physics Seminar at the University of Wisconsin-Madison, Department of Physics, Madison, WI (submitted)

Henneberg, S. A.; Drevlak, M.; Nührenberg, C.; Beidler, C. D.; Turkin, Y.; Loizu, J.; Helander, P.: Paths towards new quasi-axisymmetric stellarator designs. 46th EPS Conference on Plasma Physics, Milan (submitted)

Henneberg, S. A.; Drevlak, M.; Nührenberg, C.; Beidler, C. D.; Turkin, Y.; Loizu, J.; Hudson, S. R.; Helander, P.: Towards Novel Quasi-axisymmetric Stellarator Designs. 22nd International Stellarator and Heliotron Workshop 2019 (ISHW 2019), Madison, WI (submitted)

Kennedy, D.; Helander, P.: Radiation cooling in strongly anisotropic electron-positron plasmas. DPG-Frühjahrstagung der Sektion Atome, Moleküle, Quantenoptik und Plasmen (SAMOP), Hannover (submitted)

Proll, J. H. E.; Weir, G. M.; Helander, P.; Xanthopoulos, P.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Are TEMs stable in the W7‐X high mirror configuration and does this confirm our theory? – Comparisons of ECE data with GENE simulations. 19th Coordinated Working Group Meeting, Berlin (2019)

Zocco, A.; Aleynikova, K.; Helander, P.; Nührenberg, C.; Xanthopoulos, P.; Connor, J. W.; Motoki, N.: Electromagnetic microinstabilities in tokamaks and stellarators: the Kinetic Ballooning Mode. 19th Coordinated Working Group Meeting, Berlin (2019)

Zocco, A.; Hatzky, R.; Kleiber, R.; Könies, A.; Mishchenko, A.; Beidler, C. D.; Helander, P.; Nührenberg, C.; Rahbarnia, K.; Thomsen, H. et al.; Turkin, Y.; Weitzner, H.: Reconnection scales in W7-X. 19th Coordinated Working Group Meeting, Berlin (2019)

Aleynikova, K.; Zocco, A.; Xanthopoulos, P.; Helander, P.; Nührenberg, C.: Kinetic ballooning modes in tokamaks and stellarators. Kinetic Theory Working Group Meeting, Madrid (submitted)

Aleynikova, K.; Zocco, A.; Xanthopoulos, P.; Helander, P.; Nührenberg, C.; Lazerson, S.: Kinetic ballooning modes in W7-X. Max Planck Princeton Center Workshop 2019 (MPPC 2019), Tokyo (submitted)

Breizman, B. N.; Aleynikov, P. B.; Fontanilla, A. K.; Helander, P.; Oliver, H. J. C.; Sharapov, S. E.: The feeder pellets and the killer pellets in a plasma. Joint Varenna-Lausanne International Workshop on Theory of Fusion Plasmas, Varenna (2018)

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

Helander, P.: Available energy in stellarators and tokamaks. Kinetic Theory Working Group Meeting, Madrid (2018)

Henneberg, S. A.; Drevlak, M.; Nührenberg, C.; Beidler, C. D.; Turkin, Y.; Loizu, J.; Helander, P.: Development of a novel quasi-axisymmetric stellarator. Joint Varenna-Lausanne International Workshop on Theory of Fusion Plasmas, Varenna (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)

Mishchenko, A.; Helander, P.; Plunck, G.; Zocco, A.; Kennedy, D.; Herbst, A.; Xanthopoulos, P.: Gyrokinetic stability of electron-positron and electron-positron-ion plasmas. Kinetic Theory Working Group Meeting, Madrid (2018)

Mollen, A.; Landreman, M.; Smith, H. M.; Buller, S.; Garcia-Regana, J. M.; Velasco, J. L.; Alcuson Belloso, J. A.; Xanthopoulos, P.; Zocco, A.; Aleynikova, K. et al.; Nunami, M.; Nakata, M.; Helander, P.: On impurity transport calculations in stellarators. Kinetic Theory Working Group Meeting, Madrid (submitted)

Plunk, G. G.; Helander, P.; Landreman, M.: Shapely stellarators. Kinetic Theory Working Group Meeting, Madrid (2018)