Results 71 to 80 of about 311,592 (233)

DIVIMP-B2-EIRENE modelling of 13C migration and deposition in ASDEX-Upgrade L-mode plasmas

, 2010
Carbon transport and migration were studied experimentally and numerically in a high-density, low-confinement mode plasma in the ASDEX Upgrade tokamak.
Asunta, O., Kurki-Suonio, T., Likonen, J., Likonen, Jari; id_orcid, Groth, M., Coster, D.P., Krieger, K., Coster, D., Xuereb, A., Coster, D. P., ASDEX Upgrade Team   +10 more
core   +2 more sources

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
core   +1 more source

Inter-discharge optimization for fast, reliable access to ASDEX Upgrade advanced tokamak scenario

Nuclear Fusion
Rapid inter-discharge simulation and optimization using the RAPTOR code have allowed the development of a reliable and reproducible early heating strategy for an advanced tokamak (AT) scenario on ASDEX Upgrade.
S. van Mulders, O. Sauter, Alexander Bock, A. Burckhart, C. Contré, F. Felici, Rainer Fischer, R. Schramm, J. Stober, H. Zohm, Asdex Upgrade team   +10 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. Gonzalez-Martin, the Asdex Upgrade team, the EUROfusion MST1 Team   +11 more
semanticscholar   +1 more source

The effect of non-axisymmetric wall geometry on 13C transport in ASDEX Upgrade

, 2012
We present the first results of 3D simulations of global 13C transport in ASDEX Upgrade (AUG) indicating that the deposition profile of 13C exhibits toroidal asymmetry in the main chamber.
Hakola, Antti; id_orcid, Kurki-Suonio, T., Likonen, J., Makkonen, T., Hirvijoki, E., Likonen, Jari; id_orcid, Groth, M., Krieger, K., Äkäslompolo, S., Hakola, A., Miettunen, J., ASDEX Upgrade Team   +11 more
core   +2 more sources

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
core   +1 more source

New boronization system at ASDEX Upgrade

, 2021
The coating of plasma facing components (PFC) with boron significantly improves the performance of plasma operation in magnetic fusion devices. The boron layer traps residual oxygen in the vacuum vessel, thus reducing radiative losses due to collisions ...
M. Dibon, V. Rohde, F. Stelzer, K. Hegele, M. Uhlmann   +4 more
semanticscholar   +1 more source

Migration of 13C and deposition at ASDEX Upgrade

, 2007
To investigate material transport in scrape-off layer plasma and long term deposition in divertor, 13CH4 was puffed at the end of 2004 and 2005 experimental campaigns into ASDEX Upgrade from the outer mid-plane.
Vainonen-Ahlgren, E., Vainonen-Ahlgren, Elizaveta, Likonen, J., Rohde, V., Likonen, Jari; id_orcid, Mayer, M., Renvall, Tommi, Renvall, T., ASDEX Upgrade Team   +8 more
core   +1 more source

Heat transport at the boundary of ASDEX Upgrade [PDF]

Plasma Physics and Controlled Fusion, 1997
The flow of heat in the scrape-off layer (SOL) region of ASDEX Upgrade is investigated and compared with simple modelling. Parallel heat transport is found to be consistent with electron heat conduction based on Spitzer - H?rm conductivity. Cross-field heat transport is characterized using radial e-folding distances for power, temperature and plasma ...
Pitcher, C., Herrmann, A., Murmann, H., Reimerdes, H., Schweinzer, J., Suttrop, W., Salzmann, H., ASDEX-Upgrade-Team, NBI-Group   +8 more
openaire   +2 more sources

Carbon erosion and deposition on the ASDEX Upgrade divertor tiles

, 2005
Carbon deposition and erosion were measured on ASDEX Upgrade divertor tiles and below the roof baffle during the operation period 2002/2003. The inner divertor is a net carbon deposition area, while a large fraction of the outer divertor is erosion ...
Vainonen-Ahlgren, E., Vainonen-Ahlgren, Elizaveta, Likonen, J., Chen, J., Rohde, V., Gong, X., Likonen, Jari; id_orcid, Mayer, M., Krieger, K., ASDEX Upgrade Team   +9 more
core   +2 more sources