Publications of P. Helander

Drevlak, M.; Brochard, F.; Helander, P.; Kisslinger, J.; Mikhailov, M.; Nührenberg, C.; Nührenberg, J.; Turkin, Y.: ESTELL: A Quasi-Toroidally Symmetric Stellarator. Contributions to Plasma Physics 53 (6), pp. 459 - 468 (2013)

Garcia-Regana, J.; Kleiber, R.; Beidler, C.; Maassberg, H.; Helander, P.; Turkin, Y.: On Neoclassical impurity transport in stellarator geometry. Plasma Physics and Controlled Fusion 55, 074008 (7pp) (2013)

Helander, P.; Newton, S.: Ideal magnetohydrodynamic stability of configurations without nested flux surfaces. Physics of Plasmas 20, 062504 (4pp) (2013)

Helander, P.; Proll, J. H. E.; Plunk, G. G.: Collisionless microinstabilities in stellarators I. Analytical theory of trapped-particle modes. Physics of Plasmas 20, 122505 (2013)

Klinger, T.; Baylard, C.; Beidler, C.; Boscary, J.; Bosch, H. S.; Dinklage, A.; Hartmann, D.; Helander, P.; Maaßberg, H.; Peacock, A. et al.; Pedersen, T. S.; Rummel, T.; Schauer, F.; Wegener, L.; Wolf, R.: Towards assembly completion and preparation of experimental campaigns of Wendelstein 7-X in the perspective of a path to a stellarator fusion power plant. Fusion Engineering and Design 88 (6-8), pp. 461 - 465 (2013)

Proll, J.; Helander, P.; Xanthopoulos, P.; Plunk, G.; Connor, J.: Enhanced microstability in quasi-isodynamic stellarators. Stellarator News (142), pp. 1 - 3 (2013)

Proll, J. H. E.; Xanthopoulos, P.; Helander, P.: Collisionless microinstabilities in stellarators II. Numerical simulations. Physics of Plasmas 20, 122506 (14pp) (2013)

Smith, H. M.; Boozer, A.; Helander, P.: Passive runaway electron suppression in tokamak disruptions. Physics of Plasmas 20, 072505 (8pp) (2013)

Hansson, B.; Helander, P.; Larsson, N.-G.: Svenska universiteten kan inte förnya forskningen. Svenska Dagbladet, o. Pag. (2012)

Helander, P.: Classical and Neoclassical Transport in Tokamaks. Fusion Science and Technology 61 (2T), pp. 133 - 141 (2012)

Helander, P.; Beidler, C.; Bird, T.; Drevlak, M.; Feng, Y.; Hatzky, R.; Jenko, F.; Kleiber, R.; Proll, J.; Turkin, Y. et al.; Xanthopoulos, P.: Stellarator and tokamak plasmas: a comparison. Plasma Physics and Controlled Fusion 54, 124009 (12pp) (2012)

Proll, J. H. E.; Helander, P.; Connor, J. W.; Plunk, G. G.: Resilience of Quasi-Isodynamic Stellarators against Trapped-Particle Instabilities. Physical Review Letters 108, 245002 (4pp) (2012)

Proll, J. H. E.; Helander, P.; Xanthopoulos, P.; Connor, J. W.: Gyrokinetic TEM stability calculations for quasi-isodynamic stellarators. Journal of Physics: Conference Series 401, 012021 (8pp) (2012)

Riemann, J.; Smith, H. M.; Helander, P.: Energetics of runaway electrons during tokamak disruptions. Physics of Plasmas 19, 012507 (8pp) (2012)

Smith, H.; Marsch, E.; Helander, P.: Electron Transport in the Fast Solar Wind. The Astrophysical Journal 753, 31 (11pp) (2012)

Helander, P.; Geiger, J.; Maaßberg, H.: On the bootstrap current in stellarators and tokamaks. Physics of Plasmas 18, 092505 (8pp) (2011)

Helander, P.; Mishchenko, A.; Kleiber, R.; Xanthopoulos, P.: Oscillations of zonal flows in stellarators. Plasma Physics and Controlled Fusion 53, 054006 (13pp) (2011)

Helander, P.; Nührenberg, J.: Reply to the comment on 'Bootstrap current and neoclassical transport in quasi-isodynamic stellarators'. Plasma Physics and Controlled Fusion 53, 038002 (2pp) (2011)

Kleiber, R.; Hatzky, R.; Könies, A.; Kauffmann, K.; Helander, P.: An improved control-variate scheme for particle-in-cell simulations with collisions. Computer Physics Communications 182 (4), pp. 1005 - 1012 (2011)

Papp, G.; Drevlak, M.; Fülöp, T.; Helander, P.: Runaway electron drift orbits in magnetostatic perturbed fields. Nuclear Fusion 51, 043004 (11pp) (2011)