Intermittent transport across the scrape-off layer: latest results from ASDEX Upgrade

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F13%3A00394782" target="_blank" >RIV/61389021:_____/13:00394782 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1088/0029-5515/53/7/073047" target="_blank" >http://dx.doi.org/10.1088/0029-5515/53/7/073047</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/0029-5515/53/7/073047" target="_blank" >10.1088/0029-5515/53/7/073047</a>

Result language

angličtina

Original language name

Intermittent transport across the scrape-off layer: latest results from ASDEX Upgrade

Original language description

We report the latest results of turbulence and transport studies in the ASDEX Upgrade scrape-off layer (SOL). Dissimilarity between the plasma and the floating potential fluctuations is studied experimentally and by gyrofluid simulations. Measurements bya retarding field analyser reveal that both, edge-localized mode (ELM) and turbulent filaments, convey hot ions over large radial distances in the SOL. The measured far SOL ELM ion temperature increases with the ELM energy, consistent with earlier observations that large ELMs deposit a large fraction of their energy outside the divertor. In the SOL, the ELM suppression by magnetic perturbations (MPs) results in lower ELM ion energy in the far SOL. At the same time, large filaments of ion saturation current are replaced by more continuous bursts. Splitting of the divertor strike zones observed by the infrared imaging in H-mode with MPs agree with predictions from the EMC3-Eirene simulations. This suggests that the `lobe`

Czech name

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Czech description

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Type

J_x - 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

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2013

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Nuclear Fusion

ISSN

0029-5515

e-ISSN

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Volume of the periodical

53

Issue of the periodical within the volume

7

Country of publishing house

AT - AUSTRIA

Number of pages

9

Pages from-to

073047-073047

UT code for WoS article

000321780500051

EID of the result in the Scopus database

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