Publications of P. Helander

Zocco, A.; Plunk, G. G.; Xanthopoulos, P.; Helander, P.: Geometric stabilization of the electrostatic ion-temperature-gradient driven instability. I. Nearly axisymmetric systems. Physics of Plasmas 23, 082516 (2016)

Angioni, C.; Casson, F. J.; Mantica, P.; Pütterich, T.; Valisa, M.; Belli, A.; Bilato, R.; Giroud, C.; Helander, P.; JET Contributors: The impact of poloidal asymmetries on tungsten transport in the core of JET H-mode plasmas. Physics of Plasmas 22, 055902 (2015)

Helander, P.; Bird, T.; Jenko, F.; Kleiber, R.; Plunk, G. G.; Proll, J. H. E.; Riemann, J.; Xanthopoulos, P.: Advances in stellarator gyrokinetics. Nuclear Fusion 55, 053030 (2015)

Helander, P.; Plunk, G. G.: The universal instability in general geometry. Physics of Plasmas 22, 090706 (2015)

Loizu, J.; Hudson, S.; Bhattacharjee, A.; Helander, P.: Magnetic islands and singular currents at rational surfaces in three-dimensional magnetohydrodynamic equilibria. Physics of Plasmas 22, 022501 (2015)

Loizu, J.; Hudson, S. R.; Bhattacharjee, A.; Lazerson, S.; Helander, P.: Existence of three-dimensional ideal-magnetohydrodynamic equilibria with current sheets. Physics of Plasmas 22, 090704 (2015)

Marushchenko, N. B.; Beidler, C. D.; Erckmann, V.; Geiger, J.; Helander, P.; Laqua, H. P.; Maassberg, H.; Turkin, Y.: ECRH scenario with selective heating of trapped/passing electrons in the W7-X Stellarator. EPJ Web of Conferences 87, 01007 (2015)

Marushchenko, N. B.; Beidler, C. D.; Erckmann, V.; Geiger, J.; Helander, P.; Laqua, H. P.; Maassberg, H.; Turkin, Y.: ECRH scenarios with selective heating of trapped/passing electrons in the W7-X Stellarator. EPJ Web of Conferences 87, 01007 (2015)

Mollén, A.; Landreman, M.; Smith, H. M.; Braun, S.; Helander, P.: Impurities in a non-axisymmetric plasma: Transport and effect on bootstrap current. Physics of Plasmas 22, 112508 (2015)

Parra, F. I.; Calvo, I.; Helander, P.; Landreman, M.: Less constrained omnigeneous stellarators. Nuclear Fusion 55, 033005 (2015)

Pedrosa, M. A.; Alonso, J. A.; Garcia-Regana, J. M.; Hidalgo, C.; Velasco, J. L.; Calvo, I.; Kleiber, R.; Silva, C.; Helander, P.: Electrostatic potential variations along flux surfaces in stellarators. Nuclear Fusion 55, 052001 (2015)

Runov, A.; Kasilov, S.; Helander, P.: Energy and momentum preserving Coulomb collision model for kinetic Monte Carlo simulations of plasma steady states in toroidal fusion devices. Journal of Computational Physics 300, pp. 605 - 622 (2015)

Zocco, A.; Helander, P.; Connor, J. W.: Magnetic compressibility and ion-temperature-gradient-driven microinstabilities in magnetically confined plasmas. Plasma Physics and Controlled Fusion 57, 085003 (2015)

Angioni, C.; Helander, P.: Neoclassical transport of heavy impurities with poloidally asymmetric density distribution in tokamaks. Plasma Physics and Controlled Fusion 56, 124001 (2014)

Drevlak, M.; Geiger, J.; Helander, P.; Turkin, Y.: Fast Particle Confinement with Optimized Coil Currents in the W7-X Stellarator. Nuclear Fusion 54, 073002 (2014)

Helander, P.: Microstability of Magnetically Confined Electron-Positron Plasmas. Physical Review Letters 113, 135003 (2014)

Helander, P.: Theory of plasma confinement in non-axisymmetric magnetic fields. Reports on Progress in Physics 77, 087001 (2014)

Landreman, M.; Smith, H.; Mollén, A.; Helander, P.: Comparison of particle trajectories and collision operators for collisional transport in nonaxisymmetric plasmas. Physics of Plasmas 21, 042503 (2014)

Marushchenko, N. B.; Erckmann, V.; Beidler, C. D.; Geiger, J.; Laqua, H.; Helander, P.; Maaßberg, H.; Turkin, Y.: Selective ECR heating of trapped/passing electrons in the W7-X stellarator. AIP Conference Proceedings 1580, pp. 518 - 521 (2014)

Plunk, G.; Helander, P.; Xanthopoulos, P.; Connor, J. W.: Collisionless microinstabilities in stellarators. III. The ion-temperature-gradient mode. Physics of Plasmas 21, 032112 (2014)