Results 41 to 50 of about 984 (168)
Estimations of edge plasma and impurity performance on HL-2M with EMC3-EIRENE modelling
Physica Scripta, 2021 Abstract The three-dimensional edge transport code EMC3-EIRENE has been employed to investigate the edge plasma behavior and carbon impurity transport in the HuanLiuqi-2M (HL-2M) tokamak. It is found that the outboard divertor target has a narrower flux deposition width and therefore undergoes more intense peak ...
Z Liang, S Y Dai, Y Feng, D Z Wang
openaire +2 more sources
Toroidally symmetric/asymmetric effect on the divertor flux due to neon/nitrogen seeding in LHD
Nuclear Materials and Energy, 2017 Toroidal distributions of divertor particle flux during neon (Ne) and nitrogen (N2) seeded discharges were investigated in the Large Helical Device (LHD).
H. Tanaka +11 more
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Nuclear Materials and Energy, 2022 Three-dimensionally localization of radiative cooling due to nitrogen (N2) seeding for divertor detachment was detected experimentally. Since the localization along some magnetic field lines induces toroidal asymmetry of heat load reduction on divertor ...
K. Mukai +9 more
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Nuclear Materials and Energy, 2017 Two different plasma termination processes by dust emission were observed in long pulse discharges in the Large Helical Device. One is a plasma termination caused by large amounts of carbon dust released from a lower divertor region.
M. Shoji +6 more
doaj +1 more source
Integrated modelling: Coupling of surface evolution and plasma-impurity transport
Nuclear Materials and Energy, 2020 During the interaction of the scrape off layer (SOL) plasma with the first wall the evolution of both wall and plasma are tightly coupled: The erosion of the first wall leads to an impurity concentration in the plasma which affects the particle and power
K. Schmid +19 more
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EMC3-Eirene simulations of the spatial dependence of the tungsten divertor retention in ASDEX Upgrade [PDF]
Plasma Physics and Controlled Fusion, 2011 The Edge Monte Carlo 3D (EMC3)-Eirene code package is applied to simulate the deuterium plasma and neutral particle as well as the tungsten impurity transport in ASDEX Upgrade. Good agreement is found for the deuterium bulk plasma for an L-mode discharge both in the upstream and downstream profiles.
Lunt, T. +8 more
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Nuclear Materials and Energy, 2019 Carbon and oxygen have been identified as the two major impurities in the first limiter operational phase of the stellarator Wendelstein 7-X. We evaluate basic differences between these impurities regarding the effective charge state in the boundary ...
J. Cosfeld +5 more
doaj +1 more source
Nuclear Materials and Energy, 2018 Long pulse plasma discharges in the Large Helical Device have been often interrupted by iron dust emission induced by electric arcing on the surface of the vacuum vessel.
M. Shoji +3 more
doaj +1 more source
2D and 3D studies of the X-divertor configuration in the future upper divertor of ASDEX upgrade
Nuclear Materials and Energy, 2019 ASDEX Upgrade is planning the installation of a pair of in-vessel coils in order to study alternative divertor configurations, like an X-divertor (XD) or a Snowflake (SF) in a machine with a high heating power compared to its size.
T. Lunt +6 more
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