Edge Plasma Physics and Relevant Diagnostics on the CASTOR tokamak

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F04%3A00029777" target="_blank" >RIV/61389021:_____/04:00029777 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Edge Plasma Physics and Relevant Diagnostics on the CASTOR tokamak

Original language description

We describe results of two sets of measurements performed with a full poloidal array of Langmuir probes located in the scrape-off layer (SOL) of the CASTOR tokamak. At first, a biased electrode is inserted into the SOL. The resulting poloidally localizedelectric field structures are identified by means of the ring of probes and a consequent modification of the convective transport is demonstrated. In the second experiment, the turbulent fluctuations are measured in standard ohmic discharges. The analysis of the probe signals reveals a spatially periodic mode with the poloidal mode number equal to the edge safety factor q, which propagates poloidally in the direction of the ErxB drift. This observation is interpreted as a signature of a single turbulent structure, which snakes around the torus several times following the local helicity of the magnetic field.

Czech name

Fyzika okrajového plazmatu a odpovídající diagnostika na tokamaku CASTOR

Czech description

V příspěvku jsou prezentovány dva výsledky experimentů v okrajovém plazmatu tokamaku CASTOR. První případ popisuje polarizaci plazmatu pomocí elektrody, vytváření vnucených elektrických polí a vznik tzv. vodivých buněk. Druhý výsledek ukazuje prostorověperiodický mód, pozorovaný v okrajové turbulenci.

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

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2004

Confidentiality

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

Name of the periodical

Schriften des Forschungszentrums Jülich

ISSN

1433-5581

e-ISSN

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Volume of the periodical

3

Issue of the periodical within the volume

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Country of publishing house

DE - GERMANY

Number of pages

6

Pages from-to

1-6

UT code for WoS article

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EID of the result in the Scopus database

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