Ion target impact energy during Type I edge localized modes in JET ITER-like Wall

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F15%3A00453868" target="_blank" >RIV/61389021:_____/15:00453868 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1088/0741-3335/57/8/085006" target="_blank" >http://dx.doi.org/10.1088/0741-3335/57/8/085006</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/0741-3335/57/8/085006" target="_blank" >10.1088/0741-3335/57/8/085006</a>

Result language
angličtina
Original language name
Ion target impact energy during Type I edge localized modes in JET ITER-like Wall
Original language description
The ITER baseline scenario, with 500 MW of DT fusion power and Q = 10, will rely on a Type I ELMy H-mode, with ?W = 0.7 MJ mitigated edge localized modes (ELMs). Tungsten(W) is the material now decided for the divertor plasma-facing components from the start of plasma operations. W atoms sputtered from divertor targets during ELMs are expected to be the dominant source under the partially detached divertor conditions required for safeITER operation. In this paper, coupled thermography and Langmuir Probe(LP) measurements in JET-ITER-Like-Wall unseeded H-mode experiments with ITER relevant ELM energy drop have been used to estimate the impact energy of deuterium ions on the divertor target. This analysis gives an ion energy of several keV during ELMs, which makes D+ responsible for most of the W sputtering in unseeded H-mode discharges. Although at first sight surprising, it's consistent with theFree-Streaming? kinetic model.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BL - Plasma physics and discharge through gases
OECD FORD branch
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Project
<a href="/en/project/LG14002" target="_blank" >LG14002: Direct scientific participation in the thermonuclear research programme of the Joint European Torus JET</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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