Electron energy distribution function in the divertor region of the COMPASS tokamak during neutral beam injection heating

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F18%3A00489804" target="_blank" >RIV/61389021:_____/18:00489804 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1088/1742-6596/982/1/012002" target="_blank" >http://dx.doi.org/10.1088/1742-6596/982/1/012002</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1742-6596/982/1/012002" target="_blank" >10.1088/1742-6596/982/1/012002</a>

Result language

angličtina

Original language name

Electron energy distribution function in the divertor region of the COMPASS tokamak during neutral beam injection heating

Original language description

This paper presents the results from swept probe measurements in the divertor region of the COMPASS tokamak in D-shaped, L-mode discharges, with toroidal magnetic field 1.15 T, plasma current 180 kA and line-average electron densities varying from 2 to 8×1019 m-3. Using neutral beam injection heating, the electron energy distribution function is studied before and during the application of the beam.nThe current-voltage characteristics data are processed using the first-derivative probe technique. This technique allows one to evaluate the plasma potential and the real electron energy distribution function (EEDF) (respectively, the electron temperatures and densities).nAt the low average electron density of 2×1019 m-3, the EEDF is bi-Maxwellian with a low-energy electron population with temperatures 4-6 eV and a high energy electron group 12-25 eV. As the line-average electron density is increased, the electron temperatures decrease. At densities above 7×1019 m-3, the EEDF is found to be Maxwellian with a temperature of 6-8.5 eV.nThe effect of the neutral beam injection heating power in the divertor region is also studied.n

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

10305 - Fluids and plasma physics (including surface physics)

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

2018

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

012002

Publisher name

Institute of Physics Publishing, Ltd.

Place of publication

Bristol

Event location

Kiten

Event date

Jun 26, 2016

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000454714800002