Results 141 to 150 of about 304,251 (189)

ASDEX Upgrade. Montagefahrbahn

, 1987
Ennen, K., Lackner, E., Reese, W.H.
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Carbon migration at the divertor of ASDEX upgrade

, 2005
Rohde, V., Mayer, M., Likonen, J., Vainonen-Ahlgren, E.   +3 more
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Arcing in ASDEX‐Upgrade

Contributions to Plasma Physics, 1994
AbstractArc traces and luminous phenomena at the divertor tiles of ASDEX‐Upgrade were recorded, and experimentally modelled by artificially ignited arcs. At the graphite surfaces the arcs produced relatively immobile spots that were uniformly distributed in toroidal direction.
Juttner, B., Büchl, K., Weinlich, M.
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ECRH experiments in ASDEX upgrade

Fusion Engineering and Design, 2001
Abstract Modulated Electron Cyclotron Resonance Heating was applied in ASDEX Upgrade to study the electron heat diffusivity χ e . Its dependence on the isotope mass was found to be opposite to that one known from the power balance analysis. Off-axis ECRH deposition leads to a reduced electron heat transport in the centre which cannot be explained ...
Leuterer, F., Gantenbein, G., Günter, S., Hobirk, J., Kirov, K., Ryter, F., Wolf, R., Zohm, H. ; https://orcid.org/0000-0002-8870-7806   +7 more
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The tungsten experiment in ASDEX Upgrade

Journal of Nuclear Materials, 1997
Abstract Tungsten coated tiles, manufactured by plasma spray on graphite, were mounted in the divertor of the ASDEX Upgrade tokamak and cover almost 90% of the surface facing the plasma in the strike zone. Over 500 plasma discharges, among which around 300 were heated with heating powers up to 10 MW, were performed up to now. The tungsten flux in the
Neu, R., Asmussen, K., Deschka, S., Thoma, A., Bessenrodt-Weberpals, M., Dux, R., Engelhardt, W., Fuchs, J., Gaffert, J., GarciaRosales, C., Herrmann, A., Krieger, K., Mast, F., Roth, J., Rohde, V., Weinlich, M., Wenzel, U.   +16 more
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Study of runaway electron dynamics at the ASDEX Upgrade tokamak during impurity injection using fast hard x-ray spectrometry

Nuclear Fusion, 2021
To study the runaway electron (RE) dynamics during plasma discharge and develop scenarios for disruption mitigation, a hard x-ray (HXR) spectrometric system has been developed and commissioned at the ASDEX Upgrade tokamak (AUG).
A. Shevelev, E. Khilkevitch, M. Iliasova, M. Nocente, G. Pautasso, G. Papp, A. Molin, S. Pandya, V. Plyusnin, L. Giacomelli, G. Gorini, E. Panontin, D. Rigamonti, M. Tardocchi, G. Tardini, A. Patel, A. Bogdanov, I. Chugunov, D. Doinikov, V. Naidenov, I. Polunovsky, the ASDEX Upgrade team, the Eurofusion MST1 Team   +22 more
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Divertor geometry optimization for ASDEX Upgrade

Journal of Nuclear Materials, 1997
Abstract One of the critical questions to be solved for ITER (or any other reactor) is the power exhaust problem (compatible with particle exhaust). Optimized divertors have to be tested in existing geometries based mainly on the idea of closing them very efficiently to the main chamber and, by the choice of the plate and baffle geometry, positively ...
Schneider, R., Bosch, H., Neuhauser, J., Coster, D., Lackner, K., Kaufmann, M.   +5 more
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Tungsten erosion by arcs in ASDEX upgrade

Journal of Nuclear Materials, 2011
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. A procedure based on photographic techniques, profilometry and scanning electron microscopy was developed to investigate arc damage in ...
Rohde, V., Endstrasser, N., von Toussaint, U., Balden, M., Lunt, T., Neu, R., Hakola, Antti, Bucalossi, J., ASDEX Upgrade Team   +8 more
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Routes to divertor detachment in ASDEX Upgrade

Journal of Nuclear Materials, 1997
Abstract A simple analytic model of divertor radiation is used as a framework for identifying different routes to divertor detachment. Three means of achieving detachment are demonstrated experimentally including, increasing plasma density, purposely increasing the impurity level and increasing the scrape-off layer connection length.
Pitcher, C., Carlson, A., Fuchs, C., Herrmann, A., Suttrop, W., Schweinzer, J., Weinlich, M.   +6 more
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Particle exhaust studies in ASDEX Upgrade

Plasma Physics and Controlled Fusion, 1997
An experimental overview on pumping and particle exhaust studies for deuterium as well as for helium and neon in the ASDEX Upgrade divertor tokamak is presented. Strong turbomolecular pumps connected to the divertor region allow effective pumping of all these gases.
Bosch, H., Coster, D., Dux, R., Haas, G., Kallenbach, A., Kaufmann, M., Lackner, K., Neuhauser, J., De Pena Hempel, S., Poschenrieder, W., Schneider, R., ASDEX-Upgrade-Team, NI-Team, ICRH-Team, ECRH-Team   +14 more
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