Results 41 to 50 of about 90,764 (192)

Tungsten erosion and redeposition in the all-tungsten divertor of ASDEX Upgrade [PDF]

, 2009
Net erosion and deposition of tungsten (W) in the ASDEX Upgrade divertor were determined after the 2007 campaign by using thin W marker stripes. ASDEX Upgrade had full-W plasma-facing components during this campaign.
Hakola, Antti; id_orcid, Andrzejczuk, M., Rasinski, M., Wiltner, A., Likonen, J., Sugiyama, K., Rohde, V., Dux, R., Kurzydlowski, K., Mayer, M., Neu, R., Ramos, G., Hakola, A., Koivuranta, S., ASDEX Upgrade Team, Zielinski, Matern, G., Koivuranta, Seppo, Zielinski, W., Fortuna-Zalesna, E., Kurzydlowski, K. J., Likonen, Jari; id_orcid, Krieger, K., Kurzydlowski, K.J.   +23 more
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Investigation of probe surfaces after ion cyclotron wall conditioning in ASDEX upgrade

Nuclear Materials and Energy, 2017
For the first time, material analysis techniques have been applied to study the effect of ion cyclotron wall conditioning (ICWC) on probe surfaces in a metal-wall machine.
A. Garcia-Carrasco, P. Petersson, T. Schwarz-Selinger, T. Wauters, D. Douai, V. Bobkov, R. Cavazzana, K. Krieger, A. Lyssoivan, S. Möller, M. Spolaore, V. Rohde, M. Rubel   +12 more
doaj   +1 more source

Tungsten redistribution patterns in ASDEX Upgrade

, 2004
In ASDEX Upgrade tungsten is used as a high-Z plasma facing material. Its erosion, migration and subsequent deposition have been studied by analysis of a set of customised marker tiles, which was installed in the divertor and at the central column for ...
Pugno, R., Vainonen-Ahlgren, E., Vainonen-Ahlgren, Elizaveta, Likonen, J., Rohde, V., Likonen, Jari; id_orcid, Mayer, M., Krieger, K., Geier, A., ASDEX Upgrade Team   +9 more
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The quasi-continuous exhaust regime in ASDEX Upgrade and JET

Nuclear Materials and Energy
The quasi-continuous exhaust (QCE) regime is a type-I ELM-free high confinement regime obtained at high plasma shaping and high separatrix density. A comparison with various ELM-free regimes in the literature is presented together with potential physics ...
M. Faitsch, M. Dunne, E. Lerche, P. Lomas, I. Balboa, P. Bilkova, P. Bohm, L. Gil, G.F. Harrer, A. Kappatou, D. Kos, B. Labit, L. Radovanovic, A. Redl, O. Sauter, S. Silburn, E.R. Solano, A. Tookey, E. Viezzer, E. Wolfrum, U. Stroth   +20 more
doaj   +1 more source

SOLPS-ITER modification for impurity transport modelling in the tokamak pedestal region

Nuclear Materials and Energy
Kinetic corrections to SOLPS-ITER fluid equations are made to extend their applicability for description of the neoclassical part of impurity transport to collisionless regimes of the main ions.
V. Korzueva, E. Kaveeva, V. Rozhansky, X. Bonnin   +3 more
doaj   +1 more source

Modelling of carbon transport in the outer divertor plasma of ASDEX upgrade

, 2009
Carbon transport in the ASDEX Upgrade outer divertor plasma is investigated in numerical simulations. The SOLPS5.0 code package is used to model the scrape-off layer plasma in a set of repeated lower-single-null L-mode discharges.
Wischmeier, M., E. Wolfrum, D.P. Coster, Airila, M.I., Airila, M., M. Groth, Wischmeier, W., Kirschner, A., A. Kirschner, Fuchs, C., Airila, Markus; id_orcid, K. Krieger, Fuch, Ch., Müller, H., M. Wischmeier, H.W. Müller, Aho-Mantila, Leena, Ch. Fuchs, Fuchs, Ch., Coster, D.P., Coster, D., M.I. Airila, Müller, H.-W., Chankin, A.V., Müller, H.W., Chankin, A., A.V. Chankin, Aho-Mantila, L., Groth, M., L. Aho‐Mantila, Krieger, K., Wolfrum, E., the ASDEX Upgrade Team, Vorname Nachname   +33 more
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Low frequency sawtooth precursor activity in ASDEX Upgrade [PDF]

, 2011
This paper describes the precursor activity observed in the ASDEX Upgrade tokamak before sawtooth crashes in various neutral beam heated plasmas, utilizing the soft x-ray diagnostic. In addition to the well-known (m, n) = (1,1) internal kink mode and its
M Maraschek, Lazányi, Nóra, Pokol, Gergö,, Pokol, Gergö, Horvath, L., V Igochine, Pokol, Gerg\uf6, N Lazányi, Pokol, G. I., A Magyarkuti, L Horváth, Horv\ue1th, L\ue1szl\uf3, Por, G., G Papp, Igochine, Valentin, G Por, G I Pokol, Papp, Gergely,, Magyarkuti, A., Igochine, V., Laz\ue1nyi, N\uf3ra, Por, Gabor, ASDEX Upgrade Team, Magyarkuti, András, Team, ASDEX Upgrade, Papp, G., Horváth, László, null null, Pokol, G., Maraschek, Marc, Magyarkuti, Andr\ue1s, Lazanyi, N., Papp, Gergely   +32 more
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Analysis of high frequency Alfvén eigenmodes observed in ASDEX Upgrade plasmas in the presence of RF-accelerated NBI ions

Nuclear Fusion, 2023
High frequency Alfvén eigenmodes in the ion cyclotron frequency range are actively researched on the ASDEX Upgrade tokamak (AUG). The general properties of this particular mode type are: ( a ) the mode is beam-driven and, if excited, can persist for the ...
R. Ochoukov, S. Sipilä, R. Bilato, V. Bobkov, M. Dreval, M. Weiland, R. Dendy, H. Faugel, T. Johnson, A. Kappatou, Y. Kazakov, K.G. McClements, D. Moseev, M. Salewski, P. Schneider, ASDEX Upgrade Team, EUROfusion MST1 Team   +16 more
doaj   +1 more source

Arc behaviour on different materials in ASDEX Upgrade

Nuclear Materials and Energy, 2021
Arcs, a source of dust particles and a localized erosion mechanism of the plasma-facing components, are found in all major fusion plasma devices. Measurements of arcs require diagnostics with high temporal and local resolution, which are not available at
V. Rohde, M. Balden, R. Neu
doaj   +1 more source

Electron cyclotron resonance heating in ASDEX upgrade: Calculation and experimental authentication of the power deposition profile [PDF]

, 2002
In this paper we present global and local studies of the ECRH power deposition in ASDEX Upgrade. It is organized as follows. Section 2 briefly describes ASDEX Upgrade and its ECRH system.
Pereverzev, G., Leuterer, F., Ryter, F., Kirov, K., Max-Planck-Institut fuer Plasmaphysik, Garching (Germany), Suttrop, W., ASDEX Upgrade Team   +6 more
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