Fast observations of post-disruption runaway electron beams at the COMPASS tokamak

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F19%3A00508583" target="_blank" >RIV/61389021:_____/19:00508583 - isvavai.cz</a>
Result on the web
<a href="http://ocs.ciemat.es/EPS2019ABS/pdf/P4.1055.pdf" target="_blank" >http://ocs.ciemat.es/EPS2019ABS/pdf/P4.1055.pdf</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Fast observations of post-disruption runaway electron beams at the COMPASS tokamak
Original language description
Energetic electrons, which are foreseen to be produced during disruptions in ITER, represent a potentially dangerous threat for plasma facing components. Therefore, behaviour ofrunaway electron (RE) beams has been studied at the COMPASS tokamak in the frame of dedicated experiments focused on their generation and subsequent mitigation, mainlyusing massive gas injection. In this contribution, we introduce fast observations of the generated RE beams done by different types of high-speed cameras, AXUV detectors as aproxy of fast bolometers, ECE and hard X-ray and photo-neutron detectors. Time dependence and spatial localization of RE have been investigated with respect to severalaspects: formation of the beam, with a special attention to observed filamentary and quiet phases of the beam existence, interaction of the beam with the background plasma as well aswith the tokamak control system, beam extinction by slow decay or by sudden termination.
Czech name
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Czech description
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Project
<a href="/en/project/GA18-02482S" target="_blank" >GA18-02482S: Radiation processes generated by runaway electrons in tokamaks</a><br>
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

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