Publications of P. Helander

Journal Article (165)

61.
Journal Article
Henneberg, S. A.; Drevlak, M.; Nührenberg, C.; Beidler, C. D.; Turkin, Y.; Loizu, J.; Helander, P.: Properties of a new quasi-axisymmetric configuration. Nuclear Fusion 59, 026014 (2019)
62.
Journal Article
Klinger, T.; Andreeva, T.; Bozhenkov, S.; Brandt, C.; Burhenn, R.; Buttenschön, B.; Fuchert, G.; Geiger, B.; Grulke, O.; Laqua, H. P. et al.: Overview of first Wendelstein 7-X high-performance operation. Nuclear Fusion 59, 112004 (2019)
63.
Journal Article
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: Reduced field Scenario with X3 heating in W7-X. EPJ Web of Conferences 203, 01006 (2019)
64.
Journal Article
Plunk, G. G.; Landreman, M.; Helander, P.: Direct construction of optimized stellarator shapes. Part 3. Omnigenity near the magnetic axis. Journal of Plasma Physics 85 (6), 905850602 (2019)
65.
Journal Article
Wolf, R. C.; Alonso, A.; Äkäslompolo, S.; Baldzuhn, J.; Beurskens, M.; Beidler, C. D.; Biedermann, C.; Bosch, H.-S.; Bozhenkov, S.; Brakel, R. et al.: Performance of Wendelstein 7-X stellarator plasmas during the first divertor operation phase. Physics of Plasmas 26, 082504 (2019)
66.
Journal Article
Aleynikova, K.; Zocco, A.; Xanthopoulos, P.; Helander, P.; Nührenberg, C.: Kinetic ballooning modes in tokamaks and stellarators. Journal of Plasma Physics 84 (6), 745840602 (2018)
67.
Journal Article
Buller, S.; Smith, H. M.; Helander, P.; Mollen, A.; Newton, S. L.; Pusztai, I.: Collisional transport of impurities with flux-surface varying density in stellarators. Journal of Plasma Physics 84 (4), 905840409 (2018)
68.
Journal Article
Denk, S. S.; Fischer, R.; Smith, H. M.; Helander, P.; Maj, O.; Poli, E.; Stober, J.; Stroth, U.; Suttrop, W.; Westerhof, E. et al.: Analysis of electron cyclotron emission with extended electron cyclotron forward modeling. Plasma Physics and Controlled Fusion 60, 105010 (2018)
69.
Journal Article
Dinklage, A.; Beidler, C. D.; Helander, P.; Fuchert, G.; Maaßberg, H.; Rahbarnia, K.; Pedersen, T. S.; Turkin, Y.; Wolf, R. C.; Alonso, A. et al.: Magnetic configuration effects on the Wendelstein 7-X stellarator. Nature Physics 14, pp. 855 - 860 (2018)
70.
Journal Article
Helander, P.: Corrigendum: Theory of plasma confinement in non-axisymmetric magnetic fields (2014 Rep. Prog. Phys. 77 087001). Reports on Progress in Physics 81, 099501 (2018)
71.
Journal Article
Helander, P.; Zocco, A.: Quasilinear particle transport from gyrokinetic instabilities in general magnetic geometry. Plasma Physics and Controlled Fusion 60, 084006 (2018)
72.
Journal Article
Kennedy, D.; Mishchenko, A.; Xanthopoulos, P.; Helander, P.: Linear electrostatic gyrokinetics for electron-positron plasmas. Journal of Plasma Physics 84 (6), 905840606 (2018)
73.
Journal Article
Laqua, H. P.; Moseev, D.; Helander, P.; Aleynikov, P.; Marsen, S.; Marushchenko, N. B.; Stange, T.: Generation of electrostatic oscillations in the ion cyclotron frequency range by modulated ECRH. Nuclear Fusion 58, 104003 (2018)
74.
Journal Article
Mishchenko, A.; Plunk, G. G.; Helander, P.: Electrostatic stability of electron-positron plasmas in dipole geometry. Journal of Plasma Physics 84 (2), 905840201 (2018)
75.
Journal Article
Mishchenko, A.; Zocco, A.; Helander, P.; Könies, A.: Gyrokinetic stability of electron-positron-ion plasmas. Journal of Plasma Physics 84 (1), 905840116 (2018)
76.
Journal Article
Plunk, G. G.; Helander, P.: Quasi-axisymmetric magnetic fields: weakly non-axisymmetric case in a vacuum. Journal of Plasma Physics 84 (2), 905840205 (2018)
77.
Journal Article
Zocco, A.; Xanthopoulos, P.; Doerk, H.; Connor, J. W.; Helander, P.: Threshold for the destabilisation of the ion-temperature-gradient mode in magnetically confined toroidal plasmas. Journal of Plasma Physics 84 (1), 715840101 (2018)
78.
Journal Article
Connor, J. W.; Hastie, R. J.; Helander, P.: Neoclassical, semi-collisional tearing mode theory in an axisymmetric torus. Journal of Plasma Physics 83 (6), 905830608 (2017)
79.
Journal Article
Garcia-Regana, J. M.; Beidler, C. D.; Kleiber, R.; Helander, P.; Mollen, A.; Alonso, J. A.; Landreman, M.; Maaßberg, H.; Smith, H. M.; Turkin, Y. et al.: Electrostatic potential variation on the flux surface and its impact on impurity transport. Nuclear Fusion 57, 056004 (2017)
80.
Journal Article
Helander, P.: Available energy and ground states of collisionless plasmas. Journal of Plasma Physics 83 (4), 715830401 (2017)
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