Experimental runaway electron current estimation in COMPASS tokamak

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F19%3A00501873" target="_blank" >RIV/61389021:_____/19:00501873 - isvavai.cz</a>

Result on the web

<a href="https://www.mdpi.com/2218-2004/7/1/12/htm" target="_blank" >https://www.mdpi.com/2218-2004/7/1/12/htm</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/atoms7010012" target="_blank" >10.3390/atoms7010012</a>

Result language

angličtina

Original language name

Experimental runaway electron current estimation in COMPASS tokamak

Original language description

Runaway electrons present a potential threat to the safe operation of future nuclear fusion large facilities based on the tokamak principle (e.g., ITER). The article presents an implementation of runaway electron current estimations at COMPASS tokamak. The method uses a theoretical method developed by Fujita et al., with the difference in using experimental measurements from EFIT and Thomson scattering. The procedure was explained on the COMPASS discharge number 7298, which has a significant runaway electron population. Here, it was found that at least 4 kA of the plasma current is driven by the runaway electrons. Next, the method aws used on the set of plasma discharges with the variable electron plasma density. The difference in the plasma current was explained by runaway electrons, and their current was estimated using the aforementioned method. The experimental results are compared with the theory and simulation. The comparison presented some disagreements, showing the possible direction for the code development. Additional application on runaway electron energy limit is also addressed.

Czech name

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Czech description

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Type

J_ost - Miscellaneous article in a specialist periodical

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

2019

Confidentiality

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

Name of the periodical

Atoms

ISSN

2218-2004

e-ISSN

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Volume of the periodical

7

Issue of the periodical within the volume

1

Country of publishing house

CH - SWITZERLAND

Number of pages

12

Pages from-to

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UT code for WoS article

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EID of the result in the Scopus database

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