Spontaneous formation of a transport barrier in helium plasma in a tokamak with circular configuration
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F23%3A00581965" target="_blank" >RIV/61389021:_____/23:00581965 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21340/23:00369025
Result on the web
<a href="https://iopscience.iop.org/article/10.1088/1741-4326/acf1af" target="_blank" >https://iopscience.iop.org/article/10.1088/1741-4326/acf1af</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1741-4326/acf1af" target="_blank" >10.1088/1741-4326/acf1af</a>
Alternative languages
Result language
angličtina
Original language name
Spontaneous formation of a transport barrier in helium plasma in a tokamak with circular configuration
Original language description
We report on the first experimental observation of a spontaneously formed transport barrier in the tokamak with a circular configuration in helium plasmas. There was no external polarization of the plasma by electric field or other technique to form the barrier as it is typically used in tokamaks with circular plasma. In general, the transport barriers play an important role in plasma confinement especially in tokamaks with divertor configuration. In our experiments, we clearly observe distinct characteristics of a transport barrier, including a steep gradient of the electron temperature and an enhanced radial electric field along with the change in the plasma potential, floating potential, and electron temperature fluctuation. The electron temperature and the plasma potential are obtained by a combination of the ball-pen and Langmuir probe measurements with high temporal resolution on a shot-to-shot basis. This first experimental observation of the spontaneously formed transport barrier might bring new possibilities to obtain a fusion-relevant study of the edge plasma parameters and transport in helium plasmas even on small tokamaks.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10305 - Fluids and plasma physics (including surface physics)
Result continuities
Project
<a href="/en/project/LM2023045" target="_blank" >LM2023045: COMPASS – Tokamak for thermonuclear fusion research</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Nuclear Fusion
ISSN
0029-5515
e-ISSN
1741-4326
Volume of the periodical
63
Issue of the periodical within the volume
10
Country of publishing house
US - UNITED STATES
Number of pages
9
Pages from-to
104003
UT code for WoS article
001060022500001
EID of the result in the Scopus database
2-s2.0-85170821128