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@ARTICLE{Huber:875292,
author = {Huber, A. and Wischmeier, M. and Bernert, M. and Wiesen, S.
and Glöggler, S. and Aleiferis, S. and Brezinsek, S. and
Calabro, G. and Carvalho, P. and Huber, V. and Sergienko, G.
and Solano, E. R. and Giroud, C. and Groth, M. and Jachmich,
S. and Linsmeier, Ch and Matthews, G. F. and Meigs, A. G.
and Mertens, Ph and Sertoli, M. and Silburn, S. and Telesca,
G.},
title = {{P}eculiarity of highly radiating multi-impurity seeded {H}
-mode plasmas on {JET} with {ITER}-like wall},
journal = {Physica scripta},
volume = {T171},
issn = {1402-4896},
address = {Stockholm},
publisher = {The Royal Swedish Academy of Sciences},
reportid = {FZJ-2020-01923},
pages = {014055 -},
year = {2020},
abstract = {On JET with fully metallic first wall, highly radiative
conditions with N2, Ne and Ar as well as their mixture as
radiators are approached in high density H-mode plasmas. The
confinement increases from H 98(y,2) = 0.65 in unseeded
pulses with γ rad ~ $30\%$ to a value of H 98(y,2) = 0.75
at γ rad ~ $50\%$ with N2 injection. A degradation of the
pedestal profile is compensated by steeper core n e and T e
profiles. Further increase of γ rad with increase of the N2
seeding rate leads to a moderate confinement degradation
which can be avoided by applying of combined impurity
seeding. The enhancement of the plasma performance for the
radiation fractions beyond $55\%$ with the maximum value of
H 98(y,2) = 0.78 is reached with combined N2 + Ne and N2 +
Ar impurity injections. The observed intense, strongly
localized radiation at the X-point inside the confined
plasma in the scenarios with the highest radiated power
fraction is interlinked to complete divertor detachment. In
the JET-ILW, the X-point radiation is stable, reproducible
and reversible.},
cin = {IEK-4},
ddc = {530},
cid = {I:(DE-Juel1)IEK-4-20101013},
pnm = {174 - Plasma-Wall-Interaction (POF3-174)},
pid = {G:(DE-HGF)POF3-174},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000520000600055},
doi = {10.1088/1402-4896/ab5753},
url = {https://juser.fz-juelich.de/record/875292},
}