Publikationen von P. Helander

Zeitschriftenartikel (164)

1.
Zeitschriftenartikel
Guth, N. J.; Vallhagen, O.; Helander, P.; Pusztai, I.; Newton, S. L.; Fülöp, T.: Pellet Rocket Effect in Magnetic Confinement Fusion Plasmas. Physical Review Letters 134, 035101 (2025)
2.
Zeitschriftenartikel
Johansson, C. A.; Aleynikov, P.; Helander, P.; Moseev, D.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Generation of energetic electrons during X2 ECRH start up. Nuclear Fusion 65, 056009 (2025)
3.
Zeitschriftenartikel
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)
4.
Zeitschriftenartikel
Aleynikov, P.; Arnold, A. M.; Breizman, B. N.; Helander, P.; Runov, A. M.: Thermal quench induced by a composite pellet-produced plasmoid. Nuclear Fusion 64, 016009 (2024)
5.
Zeitschriftenartikel
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.
Zeitschriftenartikel
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)
7.
Zeitschriftenartikel
Goodman, A. G.; Xanthopoulos, P.; Plunk, G. G.; Smith, H.; Nührenberg, C.; Beidler, C. D.; Henneberg, S. A.; Roberg-Clark, G.; Drevlak, M.; Helander, P.: Quasi-Isodynamic Stellarators with Low Turbulence as Fusion Reactor Candidates. PRX Energy 3, 023010 (2024)
8.
Zeitschriftenartikel
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)
9.
Zeitschriftenartikel
Helander, P.; Goodman, A. G.; Beidler, C. D.; Kuczynski, M. D.; Smith, H. M.: Optimised stellarators with a positive radial electric field. Journal of Plasma Physics 90 (6), 175900602 (2024)
10.
Zeitschriftenartikel
Helander, P.; Mackenbach, R. J. J.: Available energy of plasmas with small fluctuations. Journal of Plasma Physics 90 (4), 905900401 (2024)
11.
Zeitschriftenartikel
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)
12.
Zeitschriftenartikel
Plunk, G. G.; Helander, P.: The residual flow in well-optimized stellarators. Journal of Plasma Physics 90 (2), 905900205 (2024)
13.
Zeitschriftenartikel
Podavini, L.; Zocco, A.; García-Regana, J. M.; Barnes, M.; Parra, F. I.; Mishchenko, A.; Helander, P.: Ion-temperature- and density-gradient-driven instabilities and turbulence in Wendelstein 7-X close to the stability threshold. Journal of Plasma Physics 90 (4), 905900414 (2024)
14.
Zeitschriftenartikel
Rodriguez, E.; Helander, P.; Goodman, A. G.: The maximum-J property in quasi-isodynamic stellarators. Journal of Plasma Physics 90 (2), 905900212 (2024)
15.
Zeitschriftenartikel
Costello, P.; Helander, P.: Stability of electron plasmas in stellarators. Journal of Plasma Physics 89 (4), 935890402 (2023)
16.
Zeitschriftenartikel
Goodman, A. G.; Camacho Mata, K.; Henneberg, S. A.; Jorge, R.; Landreman, M.; Plunk, G. G.; Smith, H. M.; Mackenbach, R. J. J.; Beidler, C. D.; Helander, P.: Constructing precisely quasi-isodynamic magnetic fields. Journal of Plasma Physics 89 (4), 905890504 (2023)
17.
Zeitschriftenartikel
Mackenbach, R. J. J.; Duff, J. M.; Gerard, M. J.; Proll, J. H. E.; Helander, P.; Hegna, C. C.: Bounce-averaged drifts: Equivalent definitions, numerical implementations, and example cases. Physics of Plasmas 30, 093901 (2023)
18.
Zeitschriftenartikel
Mackenbach, R. J. J.; Proll, J. H. E.; Snoep, G.; Helander, P.: Available energy of trapped electrons in Miller tokamak equilibria. Journal of Plasma Physics 89 (5), 905890522 (2023)
19.
Zeitschriftenartikel
Mackenbach, R. J. J.; Proll, J. H. E.; Wakelkamp, R.; Helander, P.: The available energy of trapped electrons: a nonlinear measure for turbulent transport. Journal of Plasma Physics 89 (4), 905890513 (2023)
20.
Zeitschriftenartikel
Mishchenko, A.; Kennedy, D.; Helander, P.; Könies, A.; Plunk, G.; Xanthopoulos, P.; Zocco, A.: Gyrokinetic applications in electron–positron and non-neutral plasmas. Journal of Plasma Physics 89 (4), 935890403 (2023)