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001     834319
005     20240711114045.0
024 7 _ |2 doi
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037 _ _ |a FZJ-2017-04298
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100 1 _ |0 P:(DE-Juel1)5247
|a Wiesen, S.
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245 _ _ |a Impact of the JET ITER-like wall on H-mode plasma fueling
260 _ _ |a Vienna
|b IAEA
|c 2017
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520 _ _ |a JET ITER-like wall (ILW) experiments show that the edge density evolution is strongly linked with the poloidal distribution of the ionization source. The fueling profile in the JET-ILW is more delocalized as compared to JET-C (JET with carbon-based plasma-facing components PFCs). Compared to JET-C the H-mode pedestal fueling cycle is dynamically influenced by a combination of plasma–wall interaction features, in particular: (1) edge-localized modes (ELMs) induced energetic particles are kinetically reflected on W divertor PFCs leading to distributed refueling away from the divertor depending on the divertor plasma configuration, (2) delayed molecular re-emission and outgassing of particles being trapped in W PFCs (bulk-W at the high field side and W-coated CFCs at the low field side) with different fuel content and (3) outgassing from Be co-deposits located on top of the high-field side baffle region shortly after the ELM. In view of the results of a set of well diagnosed series of JET-ILW type-I ELMy H-mode discharges with good statistics, the aforementioned effects are discussed in view of H-mode pedestal fueling capacity. The ongoing modelling activities with the focus on coupled core-edge plasma simulations and plasma–wall interaction are described and discussed also in view of possible code improvements required.
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|a Brezinsek, S.
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|a Wischmeier, M.
|b 2
700 1 _ |0 P:(DE-HGF)0
|a De la Luna, E.
|b 3
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|a Jaervinen, A. E.
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|a de la Cal, E.
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|a Losada, U.
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|a Gao, Y.
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|a Guillemaut, C.
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|a Harting, D.
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700 1 _ |0 P:(DE-HGF)0
|a Meigs, A.
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|a Schmid, K.
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700 1 _ |0 P:(DE-Juel1)130158
|a Sergienko, G.
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773 _ _ |0 PERI:(DE-600)2037980-8
|a 10.1088/1741-4326/aa69dd
|g Vol. 57, no. 6, p. 066024 -
|n 6
|p 066024 -
|t Nuclear fusion
|v 57
|x 1741-4326
|y 2017
856 4 _ |u https://juser.fz-juelich.de/record/834319/files/Wiesen_2017_Nucl._Fusion_57_066024.pdf
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