Results 101 to 110 of about 416,653 (194)

Fast-ion pressure dominating the mass dependence of the core heat transport in ASDEX Upgrade H-modes

, 2021
H-mode plasmas in ASDEX Upgrade (AUG) using different hydrogen isotopes are analysed with respect to their core transport properties. The experimental results are discussed and we present gyrokinetic simulations which are able to reproduce the ...
P. Schneider, N. Bonanomi, C. Angioni, M. Weiland, M. Cavedon, P. David, R. Fischer, P. Hennequin, J. Hobirk, A. Kappatou, B. Kurzan, R. McDermott, U. Plank, T. Pütterich, F. Ryter, M. Willensdorfer, the ASDEX Upgrade Team, and the EUROfusion MST1 Team   +17 more
semanticscholar   +1 more source

Carbon balance and deuterium inventory from a carbon dominated to a full tungsten ASDEX Upgrade [PDF]

, 2009
The evolution of carbon/boron deposition and the deuterium inventory were determined during the transition from a carbon dominated to a full tungsten ASDEX Upgrade. In the carbon dominated machine about 17 g of carbon were deposited at the inner divertor
Wiltner, A., Hopf, C., Likonen, J., Sugiyama, K., Rohde, V., Mayer, M., Neu, R., Ramos, G., Chen, J.L., ASDEX Upgrade Team, Vainonen-Ahlgren, E., Chen, J., Gong, X., Likonen, Jari; id_orcid, Chen, J. L., Linding, S., Lindig, S.   +16 more
core   +1 more source

Radial transport of poloidal momentum in ASDEX Upgrade in L-mode and H-mode [PDF]

, 2012
A reciprocating probe was used for localized measurements of the radial transport of poloidal momentum in the scrape-off layer (SOL) of ASDEX Upgrade (AUG). The probe measured poloidal and radial electric field components and density.
Schrittwieser, R., Juul Rasmussen, Jens, Rohde, V., Ionita, C., Nielsen, A., ASDEX Upgrade Team, Nielsen, Anders Henry, Müller, H.W., Rasmussen, J., Naulin, V., Nielsen, A. H., Vianello, N., Müller, H. W., Mehlmann, F., Naulin, Volker, Müller, H., Rasmussen, J. J.   +16 more
core  

Disruption Prediction with Adaptive Neural Networks for ASDEX Upgrade

, 2011
In this paper, an adaptive neural system has been built to predict the risk of disruption at ASDEX Upgrade. The system contains a Self Organizing Map, which determines the ‘novelty’ of the input of a Multi Layer Perceptron predictor module.
FANNI, ALESSANDRA, CANNAS, BARBARA, SIAS, GIULIANA, Pautasso G, the ASDEX Upgrade Team   +4 more
core   +1 more source

Characterization and scaling of the tokamak edge transport barrier [PDF]

, 2012
Das Regime mit hohem Einschluss (H-Mode) in einem Tokamak Plasma zeichnet sich durch eine besondere Randregion aus. Auf einem kleinen räumlichen Bereich von 1-2 cm ändern sich die Eigenschaften des Plasmas signifikant.
Schneider, P. ; https://orcid.org/, Schneider, Ph. A., Schneider, Philip Adrian, Schneider, P.   +3 more
core   +1 more source

Radiation transport modelling for the interpretation of oblique ECE measurements

EPJ Web of Conferences, 2017
The electron cyclotron emission (ECE) diagnostic provides routinely electron temperature (Te) measurements. At ASDEX Upgrade an electron cyclotron forward model, solving the radiation transport equation for given Te and electron density profile, is used ...
Denk Severin S., Fischer Rainer, Maj Omar, Poli Emanuele, Stober Jörg K., Stroth Ulrich, Vanovac Branka, Suttrop Wolfgang, Willensdorfer Matthias   +8 more
doaj   +1 more source

Stationary ELM-free H-mode in ASDEX Upgrade

Nuclear Fusion, 2020
A stationary H-mode without edge localized modes (ELMs) has been recently achieved in the ASDEX Upgrade tokamak by applying central electron cyclotron resonance heating above the L-H power threshold with adequate fueling.
L. Gil, C. Silva, T. Happel, G. Birkenmeier, G. Conway, L. Guimarais, A. Kallenbach, T. Pütterich, J. Santos, P. Schneider, M. Schubert, E. Seliunin, A. Silva, J. Stober, U. Stroth, E. Trier, E. Wolfrum   +16 more
semanticscholar   +1 more source

L- to H-mode transitions at low density in ASDEX Upgrade [PDF]

, 2011
The results from ASDEX Upgrade discharges dedicated specifically to the investigation of low-density L-to-H transitions are presented. The plasmas were heated by electron cyclotron resonance heating to achieve a separation of electron and ion heat ...
Sauter, P., E. Viezzer, Conway, G. D., S.K. Rathgeber, Fischer, R., R. Fischer, McDermott, R., E. Wolfrum, Rathgeber, S. K., Conway, G., Rathgeber, S., Pütterich, T., T. Pütterich, F. Ryter, P. Sauter, McDermott, R. M., Kurzan, B., ASDEX Upgrade Team, B. Kurzan, Viezzer, E., G.D. Conway, R.M. McDermott, Ryter, F., Wolfrum, E.   +23 more
core   +1 more source

Further upgrades of the ASDEX Upgrade ICRF system [PDF]

EPJ Web of Conferences
The original plans were to operate the tokamak ASDEX Upgrade (AUG) for ten years. The flexibility of the experiment lead to the fact, that AUG is now operating for over three decades.
Faugel Helmut, Bobkov Volodymyr, Schmidt Alexander Benjamin, Peglau Matthias, Helou Walid, Mulzer Roger, Fünfgelder Helmut, Girka Oleksii, Ochoukov Roman, Mendelevitch Boris   +9 more
doaj   +1 more source

Tungsten erosion by arcs in ASDEX upgrade

, 2010
The transition from carbon to high-Z divertor devices reduces the erosion of the plasma facing components (PFC) strongly. Arcing as second erosion mechanism beside physical sputtering may now dominating the erosion.
Hakola, Antti; id_orcid, Lunt, T., M. Balden, T. Lunt, Rohde, V., A. Hakola, N. Endstrasser, Bucalossi, J., Neu, R., Hakola, A., ASDEX Upgrade Team, Balden, M., V. Rohde, von Toussaint, U., J. Bucalossi, Endstrasser, N., Balden, M. ; https://orcid.org/, U.v. Toussaint, R. Neu   +18 more
core   +1 more source