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作者:N. Fedorczak , P. Monier-Garbet ...
来源:[J].Journal of Nuclear Materials(IF 1.211), 2015, Vol.463, pp.85-90
摘要:Abstract(#br)A set of discharges performed with the JET ITER-like wall is investigated with respect to control capabilities on tungsten sources and transport. In attached divertor regimes, increasing fueling by gas puff results in higher divertor recycling ion flux, lower diverto...
作者:N. Fedorczak , P. Genesio ...
来源:[J].Journal of Nuclear Materials(IF 1.211), 2015, Vol.463, pp.420-423
摘要:Abstract(#br)The influence of the plasma facing components material on the scrape-off layer plasma is investigated. In particular, the energy recycling is found to be more pronounced for tungsten wall compared with carbon wall. Edge plasma simulations performed with the transport...
作者:N. Fedorczak , Ph. Ghendrih ...
来源:[J].Journal of Nuclear Materials(IF 1.211), 2015, Vol.463, pp.489-492
摘要:Abstract(#br)To understand the mechanisms behind poloidal asymmetries of the transport in the edge and SOL plasma, it is important to take into account drift velocity in the transport model. We investigate the effects of an imposed radial electric field on the plasma equilib...
作者:... G. Ciraolo , N. Fedorczak , Ph. Ghendrih
来源:[J].Journal of Nuclear Materials(IF 1.211), 2015, Vol.463, pp.654-658
摘要:Abstract(#br)A 3D global turbulence fluid code, TOKAM3X is used to investigate the effect of the limiter position on the edge plasma parallel flows and density profiles. Six configurations with different poloidal contact points in the machine are considered. For each one, as...
作者:N. Fedorczak , M. Firdaouss ...
来源:[J].Fusion Engineering and Design(IF 0.842), 2016, Vol.112, pp.1-6
摘要:Abstract(#br)The peak power flux densities from plasma ion bombardment on tokamak armor surfaces can deviate from geometric-optical projection when the ion thermal Larmor radius becomes comparable to the characteristic size of the surface relief (gaps, misalignments, shaping...
作者:N. Fedorczak , J.P. Gunn ...
来源:[J].Journal of Nuclear Materials(IF 1.211), 2009, Vol.390, pp.368-371
摘要:Abstract(#br)Results on transport in the scrape-off-layer from a set of ohmic discharges in Tore Supra are discussed. The particle balance in the SOL is described trough a steady-state model that utilizes profile measurements from reciprocating-probes. Experimental evidence ...
作者:N. Fedorczak , J.P. Gunn ...
来源:[J].Journal of Nuclear Materials(IF 1.211), 2011, Vol.415 (1), pp.S467-S470
摘要:Abstract(#br)A consistent description of scrape-off layer transport is built from multi-diagnostic observations in ohmic discharges in Tore Supra. Fast imaging reveals the existence of relatively large filamentary structures on the low field side but not on the high field si...
作者:N. Fedorczak , Ph. Ghendrih ...
来源:[J].Journal of Nuclear Materials(IF 1.211), 2011, Vol.415 (1), pp.S597-S600
摘要:Abstract(#br)Experimental data from the Tore Supra experiments are extrapolated in the SOL and edge to investigate the Kelvin–Helmholtz instability. The linear analysis indicates that a large part of the SOL is rather unstable. The effort is part of the set-up of the Mistral...
作者:N. Fedorczak , V. Fuchs ...
来源:[J].Journal of Nuclear Materials(IF 1.211), 2013, Vol.438, pp.S184-S188
摘要:Abstract(#br)A new method to measure power flux in strongly magnetized plasmas is described, while the flaws inherent in standard Langmuir probe techniques are demonstrated. Instead of small cylindrical pins which overestimate the ion current density by several 100%, a concave pr...
作者:N. Fedorczak , K. Iraschko ...
来源:[J].Journal of Nuclear Materials(IF 1.211), 2007, Vol.363-365, pp.112-116
摘要:Abstract(#br)All limiters on the low field side of ASDEX Upgrade are equipped with tungsten coated tiles. The W influx from the limiters was measured with a new spectroscopic setup providing sufficient time resolution to resolve the influx peak during edge localised modes (ELM). ...

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