Evaluation of the scrape-off-layer plasma parameters by a horizontal reciprocating Langmuir probe in the COMPASS tokamak

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F14%3A00430627" target="_blank" >RIV/61389021:_____/14:00430627 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1088/1742-6596/514/1/012049" target="_blank" >http://dx.doi.org/10.1088/1742-6596/514/1/012049</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1742-6596/514/1/012049" target="_blank" >10.1088/1742-6596/514/1/012049</a>

Result language

angličtina

Original language name

Evaluation of the scrape-off-layer plasma parameters by a horizontal reciprocating Langmuir probe in the COMPASS tokamak

Original language description

The scrape-off-layer (SOL) parameters in the COMPASS tokamak are studied by using a Langmuir probe mounted on a horizontal reciprocating manipulator. The radial profiles of the plasma potential, the electron energy distribution function and the electrondensities are derived from the measured current-voltage probe characteristics by applying the first-derivative probe technique (FDPT). It is shown that close to the tokamak wall the electron energy distribution function is Maxwellian, while in the SOL, in the vicinity of the last closed flux surface and inside the confined plasma, the electron energy distribution function is bi-Maxwellian with a low-energy electron fraction dominating over a higher energy one. The radial profiles of the electron pressure and the parallel electron power flux density in COMPASS are also presented.

Czech name

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Czech description

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Type

D - Article in proceedings

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

2014

Confidentiality

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

Article name in the collection

Journal of Physics: Conference Series

ISBN

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ISSN

1742-6596

e-ISSN

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Number of pages

6

Pages from-to

012049-012049

Publisher name

IOP Publishing

Place of publication

Bristol

Event location

Sozopol

Event date

Oct 7, 2013

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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