Plasma Parameters in the COMPASS Divertor During Ohmic Plasmas

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F14%3A00430544" target="_blank" >RIV/61389021:_____/14:00430544 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1002/ctpp.201410073" target="_blank" >http://dx.doi.org/10.1002/ctpp.201410073</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/ctpp.201410073" target="_blank" >10.1002/ctpp.201410073</a>

Result language

angličtina

Original language name

Plasma Parameters in the COMPASS Divertor During Ohmic Plasmas

Original language description

This paper reports on probe measurements of the electron energy distribution function and plasma potential in the divertor region of the COMPASS tokamak during D-shaped plasmas. The probe data have been processed using the novel first-derivative technique. A comparison with the results obtained by processing the same data with the classical probe technique, which assumes Maxwellian electron energy distribution functions is presented and discussed. In the vicinity of the inner and outer strike points ofthe divertor the electron energy distribution function can be approximated by a bi-Maxwellian, with a dominating low-energy electron population (4-7 eV) and a minority of higher energy electrons (12-25 eV). In the private flux region between the two strike points the electron energy distribution function is found to be Maxwellian with temperatures in the range of 7-10 eV. The comparative analysis using both techniques has allowed a better insight into the underlying physical processes

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

<a href="/en/project/LM2011021" target="_blank" >LM2011021: COMPASS-RI - Contribution to operation and baseline human resources of the COMPASS tokamak - a large research infrastructure of European impact</a><br>

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

Contributions to Plasma Physics

ISSN

0863-1042

e-ISSN

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Volume of the periodical

54

Issue of the periodical within the volume

3

Country of publishing house

DE - GERMANY

Number of pages

6

Pages from-to

255-260

UT code for WoS article

000334126300002

EID of the result in the Scopus database

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