Results 121 to 130 of about 452,681 (253)

On O-X mode conversion in 2D inhomogeneous plasma with a sheared magnetic field

, 2009
The conversion of an ordinary wave to an extraordinary wave in a 2D inhomogeneous slab model of the plasma confined by a sheared magnetic field is studied analytically.Comment: sub.
A Yu Popov, Bateman H, Davies B, Gospodchikov E D, Gospodchikov E D, Gospodchikov E D Shalashov A G, Irzak M A, Maslov V P, Popov A Yu, Tokman M D   +9 more
core   +1 more source

Heat and particle exhaust in high-performance plasmas in Wendelstein 7-X

Nuclear Fusion
The paper reports for the first time the heat and particle exhaust at the plasma boundary through various edge diagnostics for the high-performance plasma obtained after pellet injection on Wendelstein 7-X.
Yu Gao, Joachim Geiger, Marcin W. Jakubowski, Arun Pandey, Sergey Bozhenkov, Yuhe Feng, Michael Endler, Jürgen Baldzuhn, Valeria Perseo, Thierry Kremeyer, Georg Schlisio, Aleix Puig Sitjes, Matthias Otte, Dirk Naujoks, Maciej Krychowiak, Ralf König, Daihong Zhang, Tamás Szepesi, Gábor Kocsis, Gábor Cseh, Attila Buzás, Fabio Pisano, Alexander Knieps, the W7-X Team   +23 more
doaj   +1 more source

Evolution of the polarization of the optical afterglow of the gamma-ray burst GRB 030329

, 2003
We report 31 polarimetric observations of the afterglow of GRB 030329 with high signal-to-noise and high sampling frequency. We establish the polarization light curve, detect sustained polarization at the percent level, and find significant variability ...
Barnbantner, O., Grav, T., Greiner, J., Hartmann, D. H., Henden, A., Hjorth, J., Jehin, E., Kaas, A. A., Kaufer, A., Klose, S., Kouveliotou, C., Palazzi, E., Park, H. -S., Pedersen, H., Rau, A., Reimer, O., Reinsch, K., Ries, C., Sari, R., Schmid, H. M., Stecklum, B., Straubmeier, C., Tovmassian, G., Wijers, R. A. M. J., Williams, G., Zharikov, S.   +25 more
core   +1 more source

A neural network-based method for input parameter optimization of edge transport modeling utilizing experimental diagnostics

Nuclear Fusion
A neural network-based method is developed to fast optimize EMC3-EIRENE input parameters, enabling EMC3-EIRENE to produce synthetic data that closely match experimental measurements on Wendelstein 7-X.
Y. Luo, S. Xu, Y. Liang, E. Wang, J. Cai, Y. Feng, D. Reiter, A. Knieps, S. Brezinsek, D. Harting, M. Krychowiak, D. Gradic, P. Ren, D. Zhang, Y. Gao, G. Fuchert, A. Pandey, M. Jakubowski, the W7-X Team   +18 more
doaj   +1 more source

Comparative Analysis of the public discourse about fusion and nuclear energy before and after Fukushima: WP12-SER-ACIF-1 Final Report [PDF]

, 2013
This report presents a comparative analysis of media coverage of fusion and fission energy before and after the accident in the nuclear reactors of Fukushima, Japan.
Horta, Ana, Oliveira, Carla, Pereira, Sérgio, Schmidt, Luísa   +3 more
core  

Modelling of ICRH slow wave propagation and absorption in Wendelstein 7-X stellarator

Nuclear Fusion
The propagation and absorption of the slow waves (SWs) in the three-ion plasma of the Wendelstein 7-X stellarator have been investigated by ray tracing.
D. Grekov, C. Albert, Yu. Turkin, Yu. Volkova   +3 more
doaj   +1 more source

Experimental investigation of the ECRH stray radiation during the start-up phase in Wendelstein 7-X

EPJ Web of Conferences, 2017
Electron cyclotron resonance heating (ECRH) is the main heating mechanism in the Wendelstein 7-X stellarator (W7-X). W7-X is equipped with five absolutely calibrated sniffer probes that are installed in each of the five modules of the device. The sniffer
Moseev Dmitry, Laqua Heinrich, Marsen Stefan, Stange Torsten, Braune Harald, Erckmann Volker, Gellert Florian, Oosterbeek Johann Wilhelm, Wenzel Uwe   +8 more
doaj   +1 more source

Vertical supports of the PV Wendelstein 7-X [PDF]

, 2009
Capriccioli, A., Cardella, A., Friedrich, P., Koppe, T., Missal, B., Schrader, M.   +5 more
core   +1 more source

Impurity leakage mechanisms in the Wendelstein 7-X island divertor under friction-dominated conditions

Nuclear Fusion
The EMC3-Eirene code was used to study the main impurity leakage mechanism for the island divertor in the standard magnetic field configuration. It was found that under experimentally accessible plasma scenarios in the last experimental campaign, the ...
V.R. Winters, F. Reimold, Y. Feng, V. Perseo, M. Beurskens, S. Bozhenkov, K.J. Brunner, G. Fuchert, R. Koenig, J. Knauer, M. Krychowiak, E. Pasch, E. Scott, D. Zhang, the W7-X Team   +14 more
doaj   +1 more source

Neural network-based surrogate model for 3D edge-plasma transport in the standard configuration of W7-X

Nuclear Fusion
This paper presents a neural‐network surrogate model for Wendelstein 7-X (W7-X) edge transport simulations, trained on an EMC3-EIRENE dataset that spans nearly the entire operating-parameter space currently explored in the W7-X standard configuration ...
Y. Luo, S. Xu, Y. Liang, E. Wang, J. Cai, A. Knieps, R. Pei, M. Tan, Y. Feng, D. Reiter, S. Brezinsek, D. Harting, M. Krychowiak, D. Gradic, M. Jakubowski, the W7-X Team   +15 more
doaj   +1 more source