Results 1 to 10 of about 28,655 (296)

Turbulence in the near scrape-off layer towards the L-mode density limit in ASDEX-Upgrade

Nuclear Materials and Energy, 2022
The L-mode density limit in ASDEX Upgrade is investigated with focus on the scrape-off layer. We observe a chain of events that involves the collapse of the E×B outer shear layer (just outside the separatrix), widening of the electron pressure fall-off ...
G. Grenfell, P. Manz, G.D. Conway, T. Eich, J. Adamek, D. Brida, M. Komm, T. Nishizawa, M. Griener, B. Tal, U. Stroth   +10 more
doaj   +3 more sources

Broadening of the power fall-off length in a high density, high confinement H-mode regime in ASDEX Upgrade

Nuclear Materials and Energy, 2021
The search for scenarios in which tolerable power exhaust is combined with good confinement must involve high separatrix densities. We present here the first infrared thermography measurements at ASDEX Upgrade in a high density, high confinement H-mode ...
M. Faitsch, T. Eich, G.F. Harrer, E. Wolfrum, D. Brida, P. David, M. Griener, U. Stroth   +7 more
doaj   +1 more source

Impact of ion temperature anisotropy on 2D edge-plasma transport

Nuclear Materials and Energy, 2021
A model of ion temperature anisotropy for 2D plasma transport in the scrape-off layer (SOL) of tokamaks is described and implemented in the UEDGE fluid transport code.
M. Zhao, A.E. Jaervinen, I. Joseph, T.D. Rognlien   +3 more
doaj   +1 more source

Currents structure in the scrape-off layer of a tokamak

Nuclear Materials and Energy, 2020
Currents structure in the scrape-off layer (SOL) of a tokamak is analyzed. It is demonstrated that poloidal currents measured in the experiments are a combination of several current types of different physical nature.
V. Rozhansky, E. Kaveeva, I. Senichenkov, D. Sorokina, E. Vekshina, D. Coster, P. McCarthy, N. Khromov   +7 more
doaj   +1 more source

Non-linear simulations of the TCV Scrape-Off Layer

Nuclear Materials and Energy, 2017
To investigate the mechanisms leading to the heat deposition onto the first wall in the Scrape-Off Layer (SOL), we perform dedicated numerical non-linear simulations of the SOL plasma dynamics of a TCV discharge using the GBS code. The simulated parallel
F. Nespoli, I. Furno, F.D. Halpern, B. Labit, J. Loizu, P. Ricci, F. Riva   +6 more
doaj   +1 more source

Effects of drifts on scrape-off layer transport in W7-X

Nuclear Fusion, 2023
Drifts affect particle, momentum, and energy transport in the scrape-off layer (SOL) of tokamaks and stellarators, altering plasma flows and creating asymmetries between divertors. To understand how drifts affect SOL transport in the W7-X island divertor,
D.M. Kriete, A. Pandey, V. Perseo, J.C. Schmitt, D.A. Ennis, D. Gradic, K.C. Hammond, M. Jakubowski, C. Killer, R. König, D.A. Maurer, F. Reimold, V. Winters, M.N.A. Beurskens, S.A. Bozhenkov, K.J. Brunner, G. Fuchert, J. Knauer, E. Pasch, E.R. Scott, the W7-X Team   +20 more
doaj   +1 more source

Fluctuation characteristics of the TCV snowflake divertor measured with high speed visible imaging [PDF]

, 2018
Tangentially viewing fast camera footage of the low-field side snowflake minus divertor in TCV is analysed across a four point scan in which the proximity of the two X-points is varied systematically.
Farley, T., Harrison, J., Innocente, P., Labit, B., Militello, F., Reimerdes, H., Team, the MST1, Team, the TCV, Walkden, N. R.   +8 more
core   +2 more sources

Application of a two-fluid two-point model to SolEdge2D-EIRENE simulations of TCV H-mode plasma

Nuclear Materials and Energy, 2019
The edge and scrape-off layer (SOL) plasma of the inter-ELM phase of an H-mode discharge from the TCV tokamak is modeled with the transport code SolEdge2D-EIRENE (Bufferand et al. Nuclear Fusion 55 (2015)).
F. Nespoli, H. Bufferand, M. Valentinuzzi, N. Fedorczak, G. Ciraolo, E. Serre, Y. Marandet, R. Maurizio, H. De Oliveira, B. Labit, M. Komm, M. Faitsch, S. Elmore   +12 more
doaj   +1 more source

Development of DTT single null divertor scenario

Nuclear Materials and Energy, 2021
This paper focuses on scrape-off layer and divertor modelling of the medium-density single-null scenario of the Divertor Test Tokamak facility (DTT), under construction in Italy.
L. Balbinot, G. Rubino, P. Innocente
doaj   +1 more source

Comparison between mirror Langmuir probe and gas puff imaging measurements of intermittent fluctuations in the Alcator C-Mod scrape-off layer [PDF]

, 2020
Statistical properties of the scrape-off layer (SOL) plasma fluctuations are studied in ohmically heated plasmas in the Alcator C-Mod tokamak. For the first time, plasma fluctuations as well as parameters that describe the fluctuations are compared ...
Brunner, D., Garcia, O. E., Kube, R., LaBombard, B., Terry, J. L., Theodorsen, A.   +5 more
core   +2 more sources