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Real-time feedback system for divertor heat flux control at COMPASS tokamak

SYSNO ASEP	0543686
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Real-time feedback system for divertor heat flux control at COMPASS tokamak
Author(s)	Khodunov, I. (BE) Komm, Michael (UFP-V)_{RID, ORCID} Havránek, Aleš (UFP-V)_ORCID Adámek, Jiří (UFP-V)_{RID, ORCID} Böhm, Petr (UFP-V)_RID Cavalier, Jordan (UFP-V)_{RID, ORCID} Seidl, Jakub (UFP-V)_RID Devitre, A. (CR) Dimitrova, Miglena (UFP-V)_ORCID Elmore, S. (GB) Faitsch, M. (DE) Háček, Pavel (UFP-V)_{RID, ORCID} Havlíček, Josef (UFP-V)_{RID, ORCID} Hron, Martin (UFP-V)_{RID, ORCID} Imríšek, Martin (UFP-V)_RID Krbec, Jaroslav (UFP-V) Peterka, Matěj (UFP-V)_{RID, ORCID} Pánek, Radomír (UFP-V)_RID Samoylov, O. (FR) Tomeš, Matěj (UFP-V) Tomova, B. (BG) Vondráček, Petr (UFP-V)_{RID, ORCID} Weinzettl, Vladimír (UFP-V)_{RID, ORCID}
Number of authors	23
Article number	065012
Source Title	Plasma Physics and Controlled Fusion. - : Institute of Physics Publishing - ISSN 0741-3335 Roč. 63, č. 6 (2021)
Number of pages	8 s.
Language	eng - English
Country	GB - United Kingdom
Keywords	detachment ; divertor ; heat flux ; nitrogen ; plasma ; tokamak
Subject RIV	BL - Plasma and Gas Discharge Physics
OECD category	Fluids and plasma physics (including surface physics)
R&D Projects	EF16_013/0001551 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
	LM2018117 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
Method of publishing	Open access
Institutional support	UFP-V - RVO:61389021
UT WOS	000649698500001
EID SCOPUS	85107030328
DOI	10.1088/1361-6587/abf03e
Annotation	The reduction of the incident heat flux onto the divertor will be a necessity for the future thermonuclear reactors. Impurity seeding is recognized as an efficient way to achieve the partial detachment regime, which allows to dissipate a large fraction of power flux by radiation. This paper presents a heat flux real-time feedback system (RTFS) based on impurity seeding controlled by a combined ball-pen and Langmuir probe divertor array in the COMPASS tokamak. A number of features of the system have been studied, such as the type of impurity, seeding location, constants used in the real-time controller and the diagnostic selections. A detailed description of the designed RTFS and the results of the implementation are presented. The findings confirm the applicability of the RTFS for reduction and control of the divertor heat fluxes. Another important implication of this research is the ability of installing such systems in next-step devices.
Workplace	Institute of Plasma Physics
Contact	Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975
Year of Publishing	2022
Electronic address	https://iopscience.iop.org/article/10.1088/1361-6587/abf03e

Number of the records: 1