On the transport of edge localized mode filaments in the tokamak scrape-off layer

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F20%3A00540254" target="_blank" >RIV/61389021:_____/20:00540254 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21340/20:00347610

Výsledek na webu

<a href="https://iopscieance.iop.org/article/10.1088/1741-4326/ab9e14/pdf" target="_blank" >https://iopscieance.iop.org/article/10.1088/1741-4326/ab9e14/pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1741-4326/ab9e14" target="_blank" >10.1088/1741-4326/ab9e14</a>

Jazyk výsledku

angličtina

Název v původním jazyce

On the transport of edge localized mode filaments in the tokamak scrape-off layer

Popis výsledku v původním jazyce

Microsecond probe measurements of the electron temperature during the tokamak edge localised mode (ELM) instability show that the peak values significantly exceed those obtained by conventional techniques. The temperatures measured at the plasma facing component (divertor) are around 80% of the initial value (at the pedestal). This challenges the current understanding, where only several percent of the pedestal value are measured at the divertor. Our results imply a negligible energy transfer from the electrons to the ions during the ELM instability, and therefore no associated increase of the ion power loads on the divertor. This observation is supported by the simple analytic free-streaming model, as well as by full kinetic simulations. The energetic ELM ion loads are expected to be one of the main divertor damaging factors - therefore, the obtained results give an optimistic prediction for next generation fusion devices.

Název v anglickém jazyce

On the transport of edge localized mode filaments in the tokamak scrape-off layer

Popis výsledku anglicky

Microsecond probe measurements of the electron temperature during the tokamak edge localised mode (ELM) instability show that the peak values significantly exceed those obtained by conventional techniques. The temperatures measured at the plasma facing component (divertor) are around 80% of the initial value (at the pedestal). This challenges the current understanding, where only several percent of the pedestal value are measured at the divertor. Our results imply a negligible energy transfer from the electrons to the ions during the ELM instability, and therefore no associated increase of the ion power loads on the divertor. This observation is supported by the simple analytic free-streaming model, as well as by full kinetic simulations. The energetic ELM ion loads are expected to be one of the main divertor damaging factors - therefore, the obtained results give an optimistic prediction for next generation fusion devices.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10305 - Fluids and plasma physics (including surface physics)

Projekt

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

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Nuclear Fusion

ISSN

0029-5515

e-ISSN

—

Svazek periodika

60

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

AT - Rakouská republika

Počet stran výsledku

5

Strana od-do

096014

Kód UT WoS článku

000560440000001

EID výsledku v databázi Scopus

2-s2.0-85090388795