Direct measurements of particle flux along gap sides in castellated plasma facing component in COMPASS

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F14%3A00435422" target="_blank" >RIV/61389021:_____/14:00435422 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.fusengdes.2014.01.008" target="_blank" >http://dx.doi.org/10.1016/j.fusengdes.2014.01.008</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.fusengdes.2014.01.008" target="_blank" >10.1016/j.fusengdes.2014.01.008</a>

Result language

angličtina

Original language name

Direct measurements of particle flux along gap sides in castellated plasma facing component in COMPASS

Original language description

In this paper, we report results of a dedicated experiment that gives the plasma penetration profiles inside a gap of a tokamak castellated plasma-facing component. A specially designed probe that recreates a gap between two tiles has been built for thepurpose of this study. It allows to measure ion saturation profiles along the 2 sides and at the bottom of the gap for both poloidal and toroidal orientations. The novelty of such experiment is the real time measurement of the plasma flux inside the gapduring a tokamak D-shaped discharge compared to previous experimental studies which were mainly post-mortem. This experiment was performed in the COMPASS tokamak and results are compared with particle-in-cell simulations. The plasma deposition is found to be asymmetric in both orientations with a stronger effect in poloidal gaps. The Larmor radius of the incoming ions plays a role in the plasma penetration only in poloidal gaps but seems to have little impact in toroidal gaps.Profiles

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

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2014

Confidentiality

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

Name of the periodical

Fusion Engineering and Design

ISSN

0920-3796

e-ISSN

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Volume of the periodical

89

Issue of the periodical within the volume

9-10

Country of publishing house

CH - SWITZERLAND

Number of pages

5

Pages from-to

2220-2224

UT code for WoS article

000341335300069

EID of the result in the Scopus database

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