Results 51 to 60 of about 90,764 (192)

Divertor power deposition and target current asymmetries during type-I ELMS in ASDEX Upgrade and JET [PDF]

open access: yes, 2007
Analysis of the type-l ELM power load asymmetries using infra-red thermography and target current measurements is performed ASDEX Upgrade Upper Single Null and JET DOC-L type-I ELMy H-Mode discharges with 'normal' and,reversed' field direction, i.e. with
JET-EFDA Contributors   +10 more
core   +1 more source

ERO and PIC simulations of gross and net erosion of tungsten in the outer strike-point region of ASDEX Upgrade

open access: yesNuclear Materials and Energy, 2017
We have modelled net and gross erosion of W in low-density l-mode plasmas in the low-field side strike point region of ASDEX Upgrade by ERO and Particle-in-Cell (PIC) simulations.
A. Hakola   +9 more
doaj   +1 more source

Probing non-linear MHD stability of the EDA H-mode in ASDEX Upgrade

open access: yesNuclear Fusion, 2023
Regimes of operation in tokamaks that are devoid of large edge localised modes have to be better understood to extrapolate their applicability to reactor-relevant devices.
A. Cathey   +13 more
doaj   +1 more source

Carbon erosion and a:C-H layer formation at ASDEX Upgrade

open access: yes, 2005
During the campaign 2002–2003 a carbon erosion and deposition experiment was performed in the lower divertor of ASDEX Upgrade. A complete divertor cross section with erosion sensitive markers, deposition monitors below the divertor and time resolved ...
Vainonen-Ahlgren, E.   +8 more
core   +1 more source

NBI-driven Alfvénic modes at ASDEX Upgrade [PDF]

open access: yes, 2012
A large variety of electromagnetic modes excited by NBI-generated energetic ions are observed in the early phase of many discharges at ASDEX Upgrade. In addition to the well-known reversed shear Alfven eigenmodes (RSAE) and the toroidal Alfven eigenmodes
Maraschek, M.   +13 more
core   +1 more source

Heat transport at the boundary of ASDEX Upgrade [PDF]

open access: yesPlasma Physics and Controlled Fusion, 1997
The flow of heat in the scrape-off layer (SOL) region of ASDEX Upgrade is investigated and compared with simple modelling. Parallel heat transport is found to be consistent with electron heat conduction based on Spitzer - H?rm conductivity. Cross-field heat transport is characterized using radial e-folding distances for power, temperature and plasma ...
Pitcher, C.   +8 more
openaire   +3 more sources

Overview of the EUROfusion Tokamak Exploitation programme in support of ITER and DEMO

open access: yesNuclear Fusion
Within the 9th European Framework programme, since 2021 EUROfusion is operating five tokamaks under the auspices of a single Task Force called ‘Tokamak Exploitation’.
E. Joffrin   +814 more
doaj   +1 more source

The separatrix operational space of next-step fusion experiments: From ASDEX Upgrade data to SPARC scenarios

open access: yesNuclear Materials and Energy
Fusion power plants require ELM-free, detached operation to prevent divertor damage and erosion. The separatrix operational space (SepOS) is proposed as a tool for identifying access to the type-I ELM-free quasi-continuous exhaust regime.
T. Eich   +14 more
doaj   +1 more source

DIVIMP simulations of 13C puffing experiments in ASDEX Upgrade L-mode plasma [PDF]

open access: yes, 2011
Carbon migration has been investigated both experimentally and numerically by injecting isotopically marked methane (13CH4) at trace levels into a series of identical low-density, low-confinement mode discharges at the last day of the 2007 ASDEX Upgrade ...
T. Kurki-Suonio   +20 more
core   +1 more source

Migration of 13C and deposition at ASDEX Upgrade

open access: yes, 2007
To investigate material transport in scrape-off layer plasma and long term deposition in divertor, 13CH4 was puffed at the end of 2004 and 2005 experimental campaigns into ASDEX Upgrade from the outer mid-plane.
Vainonen-Ahlgren, E.   +8 more
core   +1 more source

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