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N. Lonigro, K. Verhaegh, J. Harrison, B. Lipschultz et autres
Abstract The first high-power ( ⩾ 3 MW) H-mode experiments using a double-null X -point-target (XPT) divertor configuration have been performed on MAST-U. The XPT geometry is obtained by combining a large strike point radius, similar to the Super- X divertor (SXD), …
gb, nl, us, de, ch (code pays fourni par la source)
D. Moiraf, N. Fedorczak, Guido Ciraolo, O. Février et autres
Abstract We present a systematic experimental study of triangularity effects on power sharing, scrape-Off layer (SOL) transport, and boundary turbulence in double-null (DN) L-mode plasmas in TCV. We show that triangularity ( δ ) strongly influences inner/outer power sharing between divertor targets. …
fr, cz, in, ch, it, sg (code pays fourni par la source)
Y. Wang, C. Wüthrich, C. Theiler, S. García Herreros et autres
Abstract A direct quantitative comparison of scrape-off layer (SOL) filament properties obtained from fluid turbulence simulations with the GBS code and from experiments on the Tokamak à configuration variable (TCV) tokamak is performed within the TCV-X21 validation case. This comparison is made …
ch, us (code pays fourni par la source)
J. Harrison, Ashgan Aboutaleb, Mohamad Aljunid, Scott Allan et autres
Abstract The research programme performed on the Mega Amp Spherical Tokamak (MAST) Upgrade experiment has made significant advances in developing the physics understanding of low aspect ratio tokamaks in support of the operation of ITER and design of fusion powerplants. High performance …
gb, us, it, hu, jp, de, cz, es, ch, se, kr, pl, nl, ua (code pays fourni par la source)
Elena Tonello, Massimo Carpita, Stefano Angelo Donzella, Richard Ducker et autres
Abstract This work advances the quantitative validation of SOLPS-ITER against Tokamak à Configuration Variable ( TCV ) ohmic L-mode discharges. It shows that the treatment of the ion parallel heat flux limiter and the assumptions adopted for chemical sputtering result in a …
ch, it, de, fr, gb (code pays fourni par la source)
Gijs Derks, J.T.W. Koenders, H. Yang, H. Reimerdes et autres
Abstract In this work, we compare physics-based dynamic exhaust models with frequency response measurements (FRMs) of the global particle dynamics in the Tokamak à Configuration Variable (TCV). The aim is to understand and model the experimental in-vessel dynamic response of plasma and …
nl, fr, ch (code pays fourni par la source)
M van Berkel, Gijs Lukas Derks, Lennard Ceelen, Thomas Bosman et autres
Abstract The understanding of the time-scales and associated transient behavior of fusion exhaust plasmas plays a crucial role in its dynamic modeling and its control. This work presents an overview of experimental investigations of the exhaust dynamics in TCV, MAST-U, ASDEX-Upgrade, WEST, …
nl, fr, ch, us, de, gb, fi (code pays fourni par la source)
D. Hamm, C. Theiler, Matthieu Simeoni, B.P. Duval et autres
Abstract Plasma diagnostics often employ computerized tomography to estimate emissivity profiles from a finite, and often limited, number of line-integrated measurements. Decades of algorithmic refinement have brought considerable improvements, and led to a variety of employed solutions. These often feature an underlying, …
ch (code pays fourni par la source)
N. Lonigro, R. Doyle, K. Verhaegh, B. Lipschultz et autres
Abstract The improved performance of the long-legged alternative divertor configurations on MAST-U, combining strong baffling and total flux expansion, results in stronger power and momentum losses. These lead to lower electron temperatures and peak particle fluxes at the target compared to conventional …
gb, ie, nl, de, ch (code pays fourni par la source)
N. Osborne, K. Verhaegh, Stefan Mijin, H. Reimerdes et autres
Abstract During detachment, a buffer of neutral atoms and molecules builds up between the target and the ionising plasma. Collisions between the plasma and the molecules play an important role in the detachment process. Studies of plasma-molecular kinetics indicate that the gas …
gb, nl, ch, us (code pays fourni par la source)
R. Morgan, G. Durr-Legoupil-Nicoud, O. Février, T. Golfinopoulos et autres
Abstract The role of positive and negative triangularity on the divertor heat flux profile and on the SOL filamentary (blobby) turbulence is investigated experimentally in lower single-null, attached, L-mode plasmas on TCV. The divertor heat flux profile is determined by Langmuir probe …
ch, it, us, sg (code pays fourni par la source)
M. La Matina, M. Agostini, M. Ugoletti, Y.S. Wang et autres
Abstract The high confinement regime (H-mode) is considered fundamental for high-performance operation in next-step tokamaks. It is generally characterized by the occurrence of edge localized modes (ELMs), even though several no-ELM and small-ELM regimes have extended their operational space in the past …
it, ch (code pays fourni par la source)
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