Publications of P. Helander

Riemann, J.; Helander, P.; Smith, H.: 2D model for runaway electron energy amplification in a vertical disruption. In: 38th European Physical Society Conference on Plasma Physics. Contributed Papers, P2.140 (Eds. Becoulet, A.; Hoang, T.; Stroth, U.). 38th EPS Conference on Plasma Physics, Strasbourg, June 27, 2011 - July 01, 2011. European Physical Society, Geneva (2011)

Braun, S.; Helander, P.; Belli, E. A.; Candy, J.: Collisional zonal-flow damping in an impure tokamak plasma. In: 36th European Physical Society Conference on Plasma Physics. Contributed Papers, P-4.108 (Eds. Mateev, M.; Benova, E.). 36th EPS Conference on Plasma Physics, Sofia, June 29, 2009 - July 03, 2009. European Physical Society, Geneva (2009)

Fülöp, T.; Pusztai, I.; Helander, P.: Quasilinear Transport Fluxes Driven by Electrostatic Microinstabilities in Tokamaks. In: Fusion Energy 2008, TH/P8-27. 22nd IAEA Fusion Energy Conference, Geneva, October 13, 2008 - October 18, 2008. International Atomic Energy Agency, Vienna (2009)

Pokol, G.; Fülöp, T.; Smith, H. M.; Helander, P.; Lisak, M.: Criteria for Runaway Electron Generation in Tokamak Disruption. In: Fusion Energy 2008, TH/P3-4. 22nd IAEA Fusion Energy Conference, Geneva, October 13, 2008 - October 18, 2008. International Atomic Energy Agency, Vienna (2009)

Fehér, T.; Gál, K.; Smith, H. M.; Fülöp, T.; Helander, P.: Simulation of runaway electron generation during plasma shutdown by doped pellet injection. In: 35th European Physical Society Conference on Plasma Physics and 10th International Workshop on Fast Ignition of Fusion Targets. Contributed Papers, P-4.077 (Eds. Lalousis, P.; Moustaizis, S.). 35th EPS Conference on Plasma Physics and 10th International Workshop on Fast Ignition of Fusion Targets, Hersonissos, Crete, June 09, 2008 - June 13, 2008. European Physical Society, Geneva (2008)

Fülöp, T.; Pokol, G.; Smith, H. M.; Helander, P.; Lisak, M.: Magnetic field threshold for runaway generation in tokamak disruptions. In: 35th European Physical Society Conference on Plasma Physics and 10th International Workshop on Fast Ignition of Fusion Targets. Contributed Papers, P-2.078 (Eds. Lalousis, P.; Moustaizis, S.). 35th EPS Conference on Plasma Physics and 10th International Workshop on Fast Ignition of Fusion Targets, Hersonissos, Crete, June 09, 2008 - June 13, 2008. European Physical Society, Geneva (2008)

Grasso, D.; Hastie, R. J.; Helander, P.: Effect of a runaway electron current on tearing modes. In: 35th European Physical Society Conference on Plasma Physics and 10th International Workshop on Fast Ignition of Fusion Targets. Contributed Papers, P-2.116 (Eds. Lalousis, P.; Moustaizis, S.). 35th EPS Conference on Plasma Physics and 10th International Workshop on Fast Ignition of Fusion Targets, Hersonissos, Crete, June 09, 2008 - June 13, 2008. European Physical Society, Geneva (2008)

Helander, P.: On rapid rotation in stellarators. In: Joint Conference of 17th International Toki Conference on Physics of Flows and Turbulence in Plasmas and 16th International Stellarator/Heliotron Workshop 2007. Proceedings (II), P2-004, pp. 533 - 536. Joint Conference of 17th International Toki Conference on Physics of Flows and Turbulence in Plasmas and 16th International Stellarator/Heliotron Workshop, Ceratopia Toki, Gifu, October 15, 2007 - October 19, 2007. National Institue for Fusion Science (NIFS), Toki (2008)

Pusztai, I.; Fülöp, T.; Helander, P.: On the quasilinear transport fluxes driven by microinstabilities in tokamaks. In: 35th European Physical Society Conference on Plasma Physics and 10th International Workshop on Fast Ignition of Fusion Targets. Contributed Papers, P-1.032 (Eds. Lalousis, P.; Moustaizis, S.). 35th EPS Conference on Plasma Physics and 10th International Workshop on Fast Ignition of Fusion Targets, Hersonissos, Crete, June 09, 2008 - June 13, 2008. European Physical Society, Geneva (2008)

Sharapov, S. E.; Alper, B.; Andersson, F.; Berk, H. L.; Bertalot, L.; Borba, D.; Boswell, C.; Breizman, B. N.; Buttery, R.; Challis, C. D. et al.; de Baar, M.; de Vries, P.; Eriksson, L.-G.; Fasoli, A.; Galvao, R.; Goloborod'ko, V.; Hastie, R. J.; Hawkes, N. C.; Helander, P.; Kiptily, V. G.; Kramer, G. J.; Lomas, P. J.; Mailloux, J.; Mantsinen, M.; Martin, R.; Nabais, F.; Nave, M. F.; Nazikian, R.; Noterdaeme, J.-M.; Pekker, M. S.; Pinches, S. D.; Pinfold, T.; Popovichev, S. V.; Sandquist, P.; Stork, D.; Testa, D.; Tuccillo, A.; Voitsekhovich, I.; Yavorskij, V.; Young, N. P.; Zonca, F.; JET-EFDA Contributors; MAST Team: Experimental Studies of Instabilities and Confinement of Energetic Particles on JET and on MAST. In: 20th IAEA Fusion Energy Conference Proceedings, EX/5-2Ra. 20th IAEA Fusion Energy Conference, Vilamoura, November 01, 2004 - November 06, 2004. International Atomic Energy Agency, Vienna (2005)

Salmi, A.; Beaumont, P.; De Vries, P.; Eriksson, L.-G.; Helander, P.; Laxaback, M.; Mantsinen, M. J.; Noterdaeme, J.-M.; Testa, D.; EFDA JET Contributors: JET Experiments to Assess Finite Larmor Radius Effects on Resonant Ion Energy Distribution during ICRF Heating. In: 31st EPS Conference on Plasma Physics, P-5.167 (Eds. Norreys, P.; Hutchinson, H.). 31st European Physical Society Conference on Plasma Physics, London, June 28, 2004 - July 02, 2004. European Physical Society, Geneva (2004)

Arnold, A.; Helander, P.; Aleynikov, P.: Self-similar hydrodynamics and pellet injection. In: Verhandlungen der Deutschen Physikalischen Gesellschaft, (VI) 55 (1), P 10.16. DPG-Frühjahrstagung der Sektion Atome, Moleküle, Quantenoptik und Plasmen (SAMOP), Hannover, March 08, 2020 - March 13, 2020. DPG, Bad Honnef (submitted)

Camacho Mata, K.; Plunk, G. G.; Drevlak, M.; Helander, P.: Analysis of Optimal Quasi-isodynamic Stellarator Magnetic Equilibria Using a Direct Construction Approach. In: Verhandlungen der Deutschen Physikalischen Gesellschaft, (VI) 55 (1), P 10.17. DPG-Frühjahrstagung der Sektion Atome, Moleküle, Quantenoptik und Plasmen (SAMOP), Hannover, March 08, 2020 - March 13, 2020. DPG, Bad Honnef (submitted)

Kennedy, D.; Helander, P.: Radiation cooling in strongly anisotropic electron-positron plasmas. In: Verhandlungen der Deutschen Physikalischen Gesellschaft, (VI) 55 (1), P 19.4. DPG-Frühjahrstagung der Sektion Atome, Moleküle, Quantenoptik und Plasmen (SAMOP), Hannover, March 08, 2020 - March 13, 2020. DPG, Bad Honnef (submitted)

Goodman, A.; Xanthopoulos, P.; Plunk, G.; Henneberg, S.; Nührenberg, C.; Smith, H.; Beidler, C.; Roberg-Clark, G.; Helander, P.: Searching for SQuIDs: Stable Quasi-Isodynamic Designs for Stellarators. DPG-Frühjahrstagung 2024, Greifswald (2024)

Helander, P.: Recent advances in stellarator optimization: a tutorial. 20th European Fusion Theory Conference (EFTC 2023), Padova (2023)

Helander, P.: Thermodynamic bounds on gyrokinetic instabilities and turbulence. 65th Annual Meeting of the APS Division of Plasma Physics, Denver, CO (submitted)

Podavini, L.; Helander, P.; Plunk, G. G.; Zocco, A.: Validation of theoretical upper bounds on local gyrokinetic instabilities. 20th European Fusion Theory Conference (EFTC 2023), Padova (submitted)

Drevlak, M.; Goodman, A.; Helander, P.; Jorge, R.: Optimisation of sheet currents for stellarators. Simons Collaboration on Hidden Symmetries and Fusion Energy, Greifswald (2022)

Feng, Y.; Jakubowski, M.; König, R.; Krychowiak, M.; Otte, M.; Reimold, F.; Reiter, D.; Schmitz, O.; Zhang, D.; Beidler, C. D. et al.; Biedermann, C.; Bozhenkov, S.; Brunner, K. J.; Dinklage, A.; Drewelow, P.; Effenberg, F.; Endler, M.; Fuchert, G.; Gao, Y.; Geiger, J.; Hammond, K. C.; Helander, P.; Killer, C.; Knauer, J.; Kremeyer, T.; Pasch, E.; Rudischhauser, L.; Schlisio, G.; Pedersen, T. S.; Wenzel, U.; Winters, V.; W7-X Team, Max Planck Institute for Plasma Physics, Max Planck Society: Detachment physics of the W7-X divertor. 23rd International Stellarator and Heliotron Workshop (ISHW 2022), Warsaw (submitted)