Table of Contents

Fusion plasmas

TOKAMAK Within the H2020 Program EUROfusion we investigate and/or develop:


ECR Plasma In addition we construct and build our own ion sources to produce beams of highly charged ions for our collision experiments:

 

Selected reprints

Edge Physics of Fusion Plasmas

F. M. Laggner, E. Wolfrum, M. Cavedon, F. Mink, M. Bernert, M. G. Dunne, P. A. Schneider, A. Kappatou, G. Birkenmeier, R. Fischer, M. Willensdorfer, F. Aumayr, the EUROfusion MST1 Team and the ASDEX Upgrade Team
Pedestal structure and inter-ELM evolution for different main ion species in ASDEX Upgrade
Physics of Plasmas 24 (2017) 056105 (8 pages)

F.M. Laggner, E. Wolfrum, M. Cavedon, F. Mink, E. Viezzer, M.G. Dunne, P. Manz, H. Doerk, G. Birkenmeier, R. Fischer, S. Fietz, M. Maraschek, M. Willensdorfer, F. Aumayr, the EUROfusion MST1 Team and the ASDEX Upgrade Team
High frequency magnetic fluctuations correlated with the inter-ELM pedestal evolution in ASDEX Upgrade
Plasma Phys. Control. Fusion 58 (2016) 065005 (8 pages)

M. Willensdorfer, E. Fable, E. Wolfrum, F. Aumayr, R. Fischer, F. Reimold, F. Ryter, the ASDEX Upgrade Team
Role of electron temperature in the particle transport in the pedestal during pedestal evolution
Journal of Nuclear Materials 463 (2015) 1091 - 1095

M. Willensdorfer, G. Birkenmeier, R. Fischer, F.M. Laggner, E. Wolfrum, G. Veres, F. Aumayr, D. Carralero, L. Guimarãis, B. Kurzan and the ASDEX Upgrade Team
Characterization of the Li-BES at ASDEX Upgrade
Plasma Physics and Controlled Fusion 56 (2014) 025008 (10 pages)

M. Willensdorfer, E. Wolfrum, A. Scarabosio, F. Aumayr, R. Fischer, R.M. McDermott, A. Mlynek, B. Nold, S.K. Rathgeber, V. Rohde, F. Ryter, P. Sauter, E. Viezzer and the ASDEX Upgrade team
Electron density evolution after L-H transitions and the L-H/H-L cycle in ASDEX Upgrade
Nuclear Fusion 52 (2012) 114026 (10 pages)

E. Wolfrum, P. Sauter, M. Willensdorfer, F. Ryter, F. Aumayr, L. Barrera-Orte, A. Burckhart, E. Fable, R. Fischer, B. Kurzan, T. Puetterich, S. Rathgeber, W. Suttrop, E. Viezzer, and the ASDEX Upgrade Team
Recent progress in understanding the L-H transition physics from ASDEX Upgrade
Plasma Physics and Controlled Fusion 54 (2012) 124002 (6 pages)

E Wolfrum, M Bernert, J E Boom, A Burckhart, I G J Classen, G D Conway, T Eich, R Fischer, A Gude, A Herrmann, N C Luhmann Jr, M Maraschek, R McDermott, H K Park, T Pütterich, J Vicente, B Wieland, M Willensdorfer and the ASDEX Upgrade Team
Characterization of edge profiles and fluctuations in discharges with type-II and nitrogen-mitigated edge localized modes in ASDEX Upgrade
Plasma Physics and Controlled Fusion 53 (2011) 085026 (1 - 16)

Beam diagnostics and modelling

M. Willensdorfer, E. Wolfrum, R. Fischer, J. Schweinzer, M. Sertoli, B. Sieglin, G. Veres, and F. Aumayr
Improved chopping of a lithium beam for plasma edge diagnostic at ASDEX Upgrade
Review of Scientific Instruments 83 (2012) 023501 (7 pages)

H. D. Falter, M. Proschek, S. Menhart, F. Aumayr, HP. Winter, D. Ciric, S. Cox , A. Dines, D. Godden, N. Hawkes and T.T.C. Jones
Helium doped hydrogen or deuterium beam as cost effective and simple tool for plasma spectroscopy
Review Scientific Instruments 71 (2000) 3723

R. Brandenburg, J. Schweinzer, S. Fiedler, F. Aumayr and HP. Winter
Modelling of fast neutral Li beams for fusion edge plasma diagnostics
Plasma Physics and Controlled Fusion 41 (1999) 471 - 484

S. Fiedler, R. Brandenburg, J. Baldzuhn, K. McCormick, F. Aumayr, J. Schweinzer, HP. Winter, W7-AS and ASDEX-Upgrade team
Edge plasma diagnostics on W7-AS and ASDEX-Upgrade using fast Li beams
Journal of Nuclear Materials 266-269 (1999) 1279 - 1284

E. Wolfrum, F. Aumayr, D. Wutte, HP. Winter, E. Hintz, D. Rusbüldt and R.P. Schorn
Fast lithium - beam spectroscopy of tokamak edge plasmas
Review of Scientific Instruments 64 (1993) 2285 - 2292

Plasma-Wall-Interaction

B. M. Berger, P. S. Szabo, R. Stadlmayr, and F. Aumayr
Sputtering measurements using a quartz crystal microbalance as a catcher
Nuclear Instruments and Methods in Physical Research B 406 (2017) 533–537

B.M. Berger, R. Stadlmayr, D. Blöch, E. Gruber, K. Sugiyama, T. Schwarz-Selinger, and F. Aumayr
Erosion of Fe-W model system under normal and oblige D ion irradiation
Nuclear Materials and Energy (2017) doi: 10.1016/j.nme.2017.03.030

B. M. Berger, R. Stadlmayr, G. Meisl, M. Cekada, C. Eisenmenger-Sittner, T. Schwarz-Selinger, and F. Aumayr
Transient effects during erosion of WN by deuterium ions studied with the quartz crystal microbalance technique
Nuclear Instruments and Methods in Physical Research B 382 (2016) 82–85

M. Oberkofler, D.Alegre, F. Aumayr, S. Brezinsek, T. Dittmar, K. Dobes, D. Douai, A. Drenik, M. Köppen, U. Kruezi, Ch. Linsmeier, C.P. Lungu, G. Meisl, M. Mozetic, C. Porosnicu, V. Rohde, S. G. Romanelli , the ASDEX Upgrade team and JET EFDA Contributors
Plasma–wall interactions with nitrogen seeding in all-metal fusion devices: Formation of nitrides and ammonia
Fusion Engineering and Design 98 - 99 (2015) 1371 - 1374

K. Dobes, M. Köppen, M. Oberkofler, C.P. Lungu, C. Porosnicu, Ch. Linsmeier, and F. Aumayr
Dynamics of Beryllium Surfaces with Nitrogen and Deuterium Projectiles
EUROfusion Pinboard Preprint (2015) WPPFC–PR(14)01

K. Dobes, V. Smejkal, T. Schäfer, and F. Aumayr
Interaction between seeding gas ions and nitrogen saturated tungsten surfaces
International Journal of Mass Spectrometry and Ion Processes 365-366 (2014) 64 - 67

K. Dobes, M. Köppen, M. Oberkofler, C.P. Lungu, C. Porosnicu, T. Höschen, G. Meisl, C. Linsmeier, and F. Aumayr
Interaction of nitrogen ions with beryllium surfaces
Nuclear Instruments and Methods in Physical Research B 340 (2013) 34 - 38

K. Dobes, P. Naderer, C. Hopf, T. Schwarz-Selinger, and F. Aumayr
Transient effects during sputtering of a-C:H surfaces by nitrogen ions
Nuclear Instruments and Methods in Physics Research B 286 (2012) 20 - 24

K. Dobes, P. Naderer, N. Lachaud, C. Eisenmenger-Sittner and F. Aumayr
Sputtering of tungsten by N+ and (N2)+ ions – investigations of molecular effects
Physica Scripta T145 (2011) 014017 (4 pages)

A. Golczewski, K. Dobes, G. Wachter, M. Schmid, and F. Aumayr
A quartz-crystal-microbalance technique to investigate ion - induced erosion of fusion relevant surfaces
Nuclear Instruments and Methods in Physics Research B 267 (2009) 695 - 699

A. Golczewski, A. Kuzucan, K. Schmid, J. Roth, M. Schmid, and F. Aumayr
Ion - induced erosion of tungsten surfaces studied by a sensitive quartz-crystal-microbalance technique
Journal of Nuclear Materials 390–391 (2009) 1102–1105

ECR ion source development

E. Galutschek, R. Trassel, E. Salzborn, F. Aumayr and HP. Winter
Compact, low-cost, 14.5 GHz all-permanent magnet field ECR multiply charged ion source
Preprint in pdf-Format

M. Leitner, D. Wutte, J. Brandstötter, F. Aumayr and HP. Winter
Single-stage 5-GHz ECR-multicharged ion source with high magnetic mirror ratio and biased disk
Review Scientific Instruments 65 (1994) 1091 - 1093

D. Wutte, M. Leitner and HP. Winter
A 2.45-GHz electron cyclotron resonance multi-mA Li+ ion gun for fusion plasma diagnostics
Review Scientific Instruments. 65 (1994) 1094 - 1096