Results 61 to 70 of about 416,653 (194)

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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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

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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Divertor power deposition and target current asymmetries during type-I ELMS in ASDEX Upgrade and JET [PDF]

, 2007
Analysis of the type-l ELM power load asymmetries using infra-red thermography and target current measurements is performed ASDEX Upgrade Upper Single Null and JET DOC-L type-I ELMy H-Mode discharges with 'normal' and,reversed' field direction, i.e. with
JET-EFDA Contributors, Herrmann, A., Pitts, R. A., Pitts, R., Eich, T., Neuhauser, J., Jachmich, S., Fuchs, J. C., Fuchs, J., Kallenbach, A., ASDEX Upgrade Team   +10 more
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Experiments and modelling of negative triangularity ASDEX Upgrade plasmas in view of DTT scenarios

Plasma Physics and Controlled Fusion
The paper presents experimental and modelling results of a comparison of negative (NT) and positive (PT) triangularity ASDEX Upgrade (AUG) discharges using the plasma shapes presently foreseen in the DTT tokamak, under construction in Italy. This work is
L. Aucone, P. Mantica, T. Happel, J. Hobirk, T. Pütterich, B. Vanovac, C. Zimmermann, M. Bernert, T. Bolzonella, M. Cavedon, M. Dunne, R. Fischer, P. Innocente, A. Kappatou, R. McDermott, A. Mariani, P. Muscente, U. Plank, F. Sciortino, G. Tardini, the EUROfusion WPTE Team, the Asdex Upgrade team   +21 more
semanticscholar   +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

X-point radiation, its control and an ELM suppressed radiating regime at the ASDEX Upgrade tokamak

Nuclear Fusion, 2020
Future fusion reactors require a safe, steady state divertor operation. The required detached operation is, in tokamaks with metal walls, usually achieved by seeding of impurities, such as nitrogen.
M. Bernert, F. Janky, B. Sieglin, A. Kallenbach, B. Lipschultz, F. Reimold, M. Wischmeier, M. Cavedon, P. David, M. Dunne, M. Griener, O. Kudlacek, R. McDermott, W. Treutterer, E. Wolfrum, D. Brida, O. F'evrier, S. Henderson, M. Komm   +18 more
semanticscholar   +1 more source

ASCOT orbit-following simulations of ion cyclotron heating with synthetic fast ion loss diagnostic: a first application to ASDEX Upgrade

Nuclear Fusion, 2021
The orbit-following Monte Carlo code ASCOT interfaced with the radiofrequency Monte Carlo library RFOF can simulate radiofrequency heating of ion populations using wave solutions from full-wave solvers such as TORIC. It is applied to the fundamental mode
S. Sipilä, J. Varje, T. Johnson, R. Bilato, J. Galdón-Quiroga, A. Snicker, T. Kurki-Suonio, L. Sanchís, D. Silvagni, J. González-Martín, the Asdex Upgrade team, the EUROfusion MST1 Team   +11 more
semanticscholar   +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
core   +1 more source