P. Sauter

Modelling of plasma ion heat flux in the edge of ASDEX Upgrade with EMC3-EIRENE for an improved understanding of the H-mode access

P. Sauter, T. Eich, D. Brida, M. Cavedon et autres

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Retention and enrichment of tungsten-containing carbon films under deuterium beam impact

P. Sauter, M. Balden

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Charge exchange x-ray emission: Astrophysical observations and potential diagnostics

Kelsey M. Morgan, V. M. Andrianarijaona, Ilija Draganić, X. Defaÿ et autres

Interest in astrophysical sources of charge exchange X-rays has been growing steadily since the discovery of X-ray emission from the comet Hyakutake with ROSAT in 1996. Since then, charge exchange has been observed between solar wind ions and neutrals in the geocorona …

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Contributions of IPP to ITER Diagnostics: Bolometers and Diagnostic Pressure Gauges

H. Meister, F. Penzel, A. Scarabosio, Peter Detemple et autres

Recent progress in understanding the L–H transition physics from ASDEX Upgrade

E. Wolfrum, P. Sauter, M. Willensdorfer, F. Ryter et autres

Kinetic edge profiles are measured with high spatial and temporal resolution and their behaviour before and after the time of the L–H transition is analysed. It is shown that at low densities electron and ion channels are strongly decoupled and that the …

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L-H Transition, Pedestal Development and I-mode Studies in the ASDEX Upgrade Tokamak

F. Ryter, S. K. Rathgeber, E. Viezzer, M. Willensdorfer et autres

Dedicated L-H transition studies have been carried out to identify the respective role of the electron and ion channels. They reveal that the ion heat flux is essential through its influence on the diamagnetic contribution to the radial electric field shearing which …

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Electron density evolution after L–H transitions and the L–H/H–L cycle in ASDEX Upgrade

M. Willensdorfer, E. Wolfrum, A. Scarabosio, F. Aumayr et autres

Abstract The development of the electron density profile and its dependences after the L–H transition have been investigated. Only electron cyclotron resonance heated H-modes have been analysed to exclude core particle fuelling. While the density gradient in the edge transport barrier increases …

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Transport analysis of the density build-up following L-H transition in ASDEX Upgrade

M. Willensdorfer, E. Wolfrum, E. Fable, F. Ryter et autres

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Behaviour of Mean and Oscillating E×B Plasma Flows and Turbulence Interactions during Con finement Mode Transitions

G. D. Conway, C. Angioni, E. Poli, F. Ryter et autres

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High resolution analysis of tungsten doped amorphous carbon thin films

M. Rasiński, M. Balden, S. Jong, P. Sauter et autres

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

P. Sauter, T. Pütterich, F. Ryter, E. Viezzer et autres

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 channels. Under such conditions, the ratio of …

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Overview of ASDEX Upgrade results

A. Kallenbach, Jiřı́ Adámek, L. Aho-Mantila, S. Äkäslompolo et autres

The ASDEX Upgrade programme is directed towards physics input to critical elements of the ITER design and the preparation of ITER operation, as well as addressing physics issues for a future DEMO design. After the finalization of the tungsten coating of the …

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