Per Helander

Publikationer (28)
Projekt (0)

Visar 28 publikationer

2020

Effect of plasma elongation on current dynamics during tokamak disruptions

Tünde Fülöp, Per Helander, Oskar Vallhagen et al

Journal of Plasma Physics. Vol. 86 (1)

Artikel i vetenskaplig tidskrift

2018

Calculations of impurity transport in Wendelstein 7-X plasmas

Albert Mollén, Matt Landreman, Håkan Smith et al

45th EPS Conference on Plasma Physics, EPS 2018. Vol. 2018-July, p. 445-448

Paper i proceeding

2018

Collisional transport of heavy impurities with flux-surface density variation in stellarators

Stefan Buller, Håkan Smith, Per Helander et al

45th EPS Conference on Plasma Physics, EPS 2018. Vol. 2018-July, p. 1232-1235

Paper i proceeding

2017

Stellarator bootstrap current and plasma flow velocity at low collisionality

Per Helander, Felix Parra, Sarah Newton

Journal of Plasma Physics. Vol. 83 (2)

Artikel i vetenskaplig tidskrift

2017

Impurity transport and bulk ion flow in a mixed collisionality stellarator plasma

Sarah Newton, Per Helander, Albert Mollén et al

Journal of Plasma Physics. Vol. 83 (5)

Artikel i vetenskaplig tidskrift

2017

Neoclassical impurity transport in stellarators

Sarah Newton, Per Helander, Albert Mollén et al

44th EPS Conference on Plasma Physics, EPS 2017. Vol. 41F

Paper i proceeding

2016

Impurity transport and plasma flow in a mixed collisionality stellarator plasma

Sarah Newton, Per Helander, Albert Mollén et al

Proceedings of 26th IAEA Fusion Energy Conference, Kyoto, Japan, p. THC/PDP-15

Övrigt konferensbidrag

2015

Impurities in a non-axisymmetric plasma: Transport and effect on bootstrap current

Albert Mollén, Matt Landreman, Håkan Smith et al

Physics of Plasmas. Vol. 22 (11), p. 112508-

Artikel i vetenskaplig tidskrift

2014

Comparison of particle trajectories and collision operators for collisional transport in nonaxisymmetric plasmas

Matt Landreman, Håkan Smith, Albert Mollén et al

Physics of Plasmas. Vol. 21 (4)

Artikel i vetenskaplig tidskrift

2011

Runaway electron losses caused by resonant magnetic perturbations in ITER

Gergely Papp, Michael Drevlak, Tünde Fülöp et al

Plasma Physics and Controlled Fusion. Vol. 53 (9), p. 095004-

Artikel i vetenskaplig tidskrift

2011

Runaway electron drift orbits in magnetostatic perturbed fields

Gergely Papp, Michael Drevlak, Tünde Fülöp et al

Nuclear Fusion. Vol. 51 (4), p. 043004-

Artikel i vetenskaplig tidskrift

2011

Runaway electron losses enhanced by resonant magnetic perturbations

Gergely Papp, M Drevlak, Tünde Fülöp et al

Proceedings of 12th Technical Meeting on Energetic Particles in Magnetic Confinement Systems, p. O.26-

Paper i proceeding

2011

The effect of resonant magnetic perturbations on runaway electrons

Gergely Papp, Michael Drevlak, Tünde Fülöp et al

38th EPS Conference on Plasma Physics 2011, EPS 2011. Strasbourg, 27 June - 1 July 2011, p. 1332-1335

Paper i proceeding

2010

Runaway electron drift orbits in magnetostatic perturbed fields

Gergely Papp, Michael Drevlak, Tünde Fülöp et al

Proceedings of 23rd IAEA Fusion Energy Conference, Korea 2010

Paper i proceeding

2008

Magnetic field threshold for runaway generation in tokamak disruptions

Tünde Fülöp, Gergö Pokol, Håkan Smith et al

35th European Physical Society Conference on Plasma Physics, EPS 2008 Combined with the 10th International Workshop on Fast Ignition of Fusion Targets; Hersonissos, Crete; Greece; 9 June 2008 through 13 June 2008. Vol. 32 (2), p. 1014-1017

Paper i proceeding

2008

Simulation of runaway electron generation during plasma shutdown by doped pellet injection

Tamás Fehér, Kinga Gál, Håkan Smith et al

Proceedings of the 35th EPS Conference on Plasma Physics, Hersonissos, 2008. Vol. 32 (3), p. 1554-1557

Paper i proceeding

2008

Quasilinear transport fluxes driven by electrostatic microinstabilities in tokamaks

Tünde Fülöp, Istvan Pusztai, Per Helander

Proceedings of 22nd IAEA Fusion Energy Conference, Geneva, p. TH/P8-28

Paper i proceeding

2008

Collisionality dependence of the quasilinear particle ﬂux due to microinstabilities

Tünde Fülöp, Istvan Pusztai, Per Helander

Physics of Plasmas. Vol. 15 (7), p. 072308-

Artikel i vetenskaplig tidskrift

2008

Runaway electron generation during plasma shutdown by killer pellet injection

Kinga Gál, Tamás Fehér, Håkan Smith et al

Plasma Physics and Controlled Fusion. Vol. 50, p. 055006-

Artikel i vetenskaplig tidskrift

2008

On the quasilinear transport fluxes driven by microinstabilities in tokamaks

Istvan Pusztai, Tünde Fülöp, Per Helander

Proceedings of the 35th EPS Conference on Plasma Physics, Hersonissos, 2008. Vol. 32 (1), p. 305-308

Paper i proceeding

2008

Criteria for runaway electron generation in tokamak disruptions

Gergö Pokol, Tünde Fülöp, Håkan Smith et al

Proceedings of 22nd IAEA Fusion Energy Conference, p. TH/P3-4

Paper i proceeding

2007

Runaway electron generation during plasma shutdown by pellet injection

Håkan Smith, Kinga Gál, Tamás Fehér et al

Proceedings of the 34th EPS Conference on Plasma Physics, Warszawa, 2007. Vol. 31 F, p. P4.056-

Paper i proceeding

2007

Runaway Electron Generation during Plasma Shutdown by Pellet Injection

Håkan Smith, Kinga Gál, Tamás Fehér et al

Proceedings of 10th IAEA Technical Meeting on Energetic Particles in Magnetic Confinement Systems (OT13)

Paper i proceeding

2004

Runaway electrons generation in a cooling plasma

Håkan Smith, Per Helander, Tünde Fülöp

Conference proceedings: 46th Annual Meeting of the APS Division of Plasma Physics, Savannah, p. CP1.034-

Paper i proceeding

2002

Effects on Backscattering on One-Dimensional Electron Beam Transport

Fredrik Andersson, Håkan Smith, Dan Anderson et al

Nuclear Science and Engineering. Vol. 142, p. 150-

Artikel i vetenskaplig tidskrift

2002

Approximate solutions of two-way diffusion equations

Fredrik Andersson, Per Helander, Dan Anderson et al

Physical Review E. Vol. 65, p. 036502-

Artikel i vetenskaplig tidskrift

2000

Theoretical issues in tokamak confinement: internal/edge transport barriers, and runaway avalanche confinement

Jack Connor, Per Helander, A Thyagaraja et al

Proceedings of 18th IAEA Fusion Energy Conference, Sorrento, p. TH/4-2

Paper i proceeding

1994

Dynamics of Fast Ions in Tokamaks

Per Helander

Doktorsavhandling

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