Simulations of Anomalous Ion Diffusion in Experimentally Measured Turbulent Potential

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F09%3A00159586" target="_blank" >RIV/68407700:21340/09:00159586 - isvavai.cz</a>

Alternative codes found

RIV/61389021:_____/09:00335887

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Simulations of Anomalous Ion Diffusion in Experimentally Measured Turbulent Potential

Original language description

The diffusion of plasma impurities in tokamak-edge-plasma turbulence is investigated numerically. The time-dependent potential governing particle motion was measured by 2D array of 8x8 Langmuir probes in edge region of CASTOR tokamak. The diffusion of particles is found to be classical in the radial direction, but it can be of an anomalous L,vy-walk type in the poloidal direction. The diffusion is found to be dependent on the ratio of particles' mass and charge. When this ratio grows, the diffusion coefficient in radial direction grows as well, whereas poloidal diffusion coefficient drops down. Moreover, movement of particles in the ime-frozen snapshot of this potential is investigated showing that also the time-independent potential is much more favorable for the particle diffusion in poloidal direction than in radial one.

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

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2009

Confidentiality

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

Name of the periodical

The European Physical Journal D

ISSN

1434-6060

e-ISSN

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Volume of the periodical

54

Issue of the periodical within the volume

2

Country of publishing house

FR - FRANCE

Number of pages

9

Pages from-to

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UT code for WoS article

000268329200038

EID of the result in the Scopus database

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