Results 51 to 60 of about 311,592 (233)

Safety Analysis in Large Volume Vacuum Systems Like Tokamak: Experiments and Numerical Simulation to Analyze Vacuum Ruptures Consequences

Advances in Materials Science and Engineering, Volume 2014, Issue 1, 2014., 2014
The large volume vacuum systems are used in many industrial operations and research laboratories. Accidents in these systems should have a relevant economical and safety impact. A loss of vacuum accident (LOVA) due to a failure of the main vacuum vessel can result in a fast pressurization of the vessel and consequent mobilization dispersion of ...
A. Malizia, I. Lupelli, M. Richetta, M. Gelfusa, C. Bellecci, P. Gaudio, S. K. S. Parashar   +6 more
wiley   +1 more source

Microwave diagnostics damage by parametric decay instabilities during electron cyclotron resonance heating in ASDEX Upgrade

Plasma Physics and Controlled Fusion, 2021
We present observations of microwave diagnostics damage in three discharges employing third-harmonic X-mode electron cylcotron resonance heating (ECRH) at the ASDEX Upgrade tokamak.
S. Hansen, A. Jacobsen, M. Willensdorfer, S. Nielsen, J. Stober, K. Höfler, M. Maraschek, R. Fischer, M. Dunne   +8 more
semanticscholar   +1 more source

Feedback-controlled NTM stabilization on ASDEX Upgrade

EPJ Web of Conferences, 2015
On ASDEX Upgrade a concept for real-time stabilization of NTMs has been realized and successfully applied to (3,2)- and (2,1)-NTMs. Since most of the work has meanwhile been published elsewhere, a short summary with the appropriate references is given ...
Stober J., Barrera L., Behler K., Bock A., Buhler A., Eixenberger H., Giannone L., Kasparek W., Maraschek M., Mlynek A., Monaco F., Poli E., Rapson C.J., Reich M., Schubert M., Treutterer W., Wagner D., Zohm H.   +17 more
doaj   +1 more source

Optimization of the computation of total and local radiated power at ASDEX Upgrade

Nuclear Fusion, 2021
Radiation losses are measured as a line integrated quantity from the plasma, on ASDEX Upgrade using foil bolometers. Based on these measurements, the computation of the radiated power from either the whole volume or any sub region requires post ...
P. David, M. Bernert, T. Pütterich, C. Fuchs, S. Glöggler, T. Eich, the ASDEX Upgrade team   +6 more
semanticscholar   +1 more source

Electric field and turbulence in global Braginskii simulations across the ASDEX Upgrade edge and scrape-off layer

, 2021
Turbulence simulations in diverted geometry across the edge and scrape-off layer (SOL) of ASDEX Upgrade are performed with the GRILLIX code (Stegmeir et al 2019 Phys. Plasmas 26 052517).
W. Zholobenko, T. Body, P. Manz, A. Stegmeir, Ben Zhu, M. Griener, G. D. Conway, D. Coster, F. Jenko   +8 more
semanticscholar   +1 more source

Confinement in electron heated plasmas in Wendelstein 7-X and ASDEX Upgrade; the necessity to control turbulent transport

Nuclear Fusion, 2021
In electron (cyclotron) heated plasmas, in both ASDEX Upgrade (L-mode) and Wendelstein 7-X, clamping of the ion temperature occurs at T i ∼ 1.5 keV independent of magnetic configuration.
M. Beurskens, C. Angioni, S. Bozhenkov, O. Ford, C. Kiefer, P. Xanthopoulos, Y. Turkin, J. Alcuson, J. P. Baehner, C. Beidler, G. Birkenmeier, E. Fable, G. Fuchert, B. Geiger, O. Grulke, M. Hirsch, M. Jakubowski, H. Laqua, A. Langenberg, S. Lazerson, N. Pablant, M. Reisner, P. Schneider, E. Scott, T. Stange, A. von Stechow, J. Stober, U. Stroth, T. Wegner, G. Weir, D. Zhang, A. Zocco, R. Wolf, H. Zohm, the W7-X team, the ASDEX Upgrade team, the Eurofusion MST1 Team   +36 more
semanticscholar   +1 more source

The compact neutron spectrometer at ASDEX Upgrade [PDF]

Review of Scientific Instruments, 2011
The first neutron spectrometer of ASDEX Upgrade (AUG) was installed in November 2008. It is a compact neutron spectrometer (CNS) based on a BC501A liquid scintillating detector, which can simultaneously measure 2.45-MeV and 14-MeV neutrons emitted from deuterium (D) plasmas and γ radiation. The scintillating detector is coupled to a digital pulse shape
Giacomelli, L., Zimbal, A., Tittelmeier, K., Schuhmacher, H., Tardini, G., Neu, R., ASDEX Upgrade Team   +6 more
openaire   +4 more sources

Surface loss probabilities of boron-hydride radicals in W7-X and ASDEX Upgrade

Nuclear Materials and Energy
The surface loss probabilities of boron-hydride radicals on silicon surfaces have been measured during boronisations for wall conditioning in the stellarator W7-X and the tokamak ASDEX Upgrade using the cavity technique.
M. Mayer, S. An, T. Bräuer, D. Cipciar, C.P. Dhard, C. Killer, D. Naujoks, V. Rohde, R. Steinwehr, U. von Toussaint, L. Vano, H. Viebke   +11 more
doaj   +1 more source

Benign termination of runaway electron beams on ASDEX Upgrade and TCV

Plasma Physics and Controlled Fusion
This paper discusses the development of a benign termination scenario for runaway electron (RE) beams on ASDEX Upgrade and TCV. A systematic study revealed that a low electron density (n e) companion plasma was required to achieve a large MHD instability,
U. Sheikh, J. Decker, M. Hoppe, M. Pedrini, B. Sieglin, L. Simons, J. Cazabonne, J. Caloud, J. Cerovsky, S. Coda, C. Colandrea, A. Dal Molin, B. Duval, O. Ficker, M. Griener, G. Papp, G. Pautasso, C. Paz-Soldan, C. Reux, E. Tomesova, T. Wijkamp, the Asdex Upgrade team   +21 more
semanticscholar   +1 more source

Tungsten experiences in ASDEX Upgrade and JET [PDF]

2013 IEEE 25th Symposium on Fusion Engineering (SOFE), 2013
ASDEX Upgrade (AUG) has been converted to all W plasma facing components (PFCs) in 2007 and JET has implemented the ITER like wall (ILW) project (2011) using the same PFC configuration as ITER during its active phase, namely Be in the main chamber and tungsten in the divertor.
Neu, R., Brezinsek, S., Pautasso, G., Putterich, Th., Ryter, F., Schweinzer, J., Beurskens, M., Bobkov, V., de Vries, P., Giroud, C., Joffrin, E., Kallenbach, A., Matthews, G. F., Mayoral, M.-L.   +13 more
openaire   +3 more sources