POWER FLUX DENSITY IN THE DIVERTOR REGION OF THE COMPASS TOKAMAK IN OHMIC ELMY H-MODES(VEIT2015)

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

POWER FLUX DENSITY IN THE DIVERTOR REGION OF THE COMPASS TOKAMAK IN OHMIC ELMY H-MODES(VEIT2015)

Popis výsledku v původním jazyce

Předneseno na:19th International Summer School Vacuum, Electron and Ion Technologies, Sozopol,BG, 21-25.09.2015, We report experimental results obtained by Langmuir probes embedded in the divertor tiles on the COMPASS tokamak. Measurements of the current-voltage (IV) probe characteristics were performed during ohmic ELMy H-modes in deuterium plasmas, toroidal magnetic field BT = 1.15 T, plasma current Ip = 300 kA and line-averaged electron density ne = 51019m3. The data obtained between the ELMs were processed by the recently published first-derivative probe technique for precise determination of the plasma potential and the electron energy distribution function (EEDF). The spatial profile of the electron temperature shows that the EEDF at the high-field side is Maxwellian with a temperature of 6 10 eV; however, in the private flux region it differs from the Maxwellian but can be approximated by a bi-Maxwellian distribution. The electron temperatures and densities obtained were

Název v anglickém jazyce

POWER FLUX DENSITY IN THE DIVERTOR REGION OF THE COMPASS TOKAMAK IN OHMIC ELMY H-MODES(VEIT2015)

Popis výsledku anglicky

Předneseno na:19th International Summer School Vacuum, Electron and Ion Technologies, Sozopol,BG, 21-25.09.2015, We report experimental results obtained by Langmuir probes embedded in the divertor tiles on the COMPASS tokamak. Measurements of the current-voltage (IV) probe characteristics were performed during ohmic ELMy H-modes in deuterium plasmas, toroidal magnetic field BT = 1.15 T, plasma current Ip = 300 kA and line-averaged electron density ne = 51019m3. The data obtained between the ELMs were processed by the recently published first-derivative probe technique for precise determination of the plasma potential and the electron energy distribution function (EEDF). The spatial profile of the electron temperature shows that the EEDF at the high-field side is Maxwellian with a temperature of 6 10 eV; however, in the private flux region it differs from the Maxwellian but can be approximated by a bi-Maxwellian distribution. The electron temperatures and densities obtained were

Druh

O - Ostatní výsledky

CEP obor

BL - Fyzika plasmatu a výboje v plynech

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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