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Evolution of electron temperature and density profiles in edge transport barrier in the COMPASS tokamak
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SYSNO ASEP 0438886 Document Type A - Abstract R&D Document Type The record was not marked in the RIV R&D Document Type Není vybrán druh dokumentu Title Evolution of electron temperature and density profiles in edge transport barrier in the COMPASS tokamak Author(s) Štefániková, Estera (UFP-V)
Böhm, Petr (UFP-V) RID
Aftanas, Milan (UFP-V) RID
Bílková, Petra (UFP-V) RID
Weinzettl, Vladimír (UFP-V) RID, ORCID
Stöckel, Jan (UFP-V) RID
Pánek, Radomír (UFP-V) RID
Scannell, R. (GB)
Urban, Jakub (UFP-V) RID
Peterka, Matěj (UFP-V) RID, ORCID
Imríšek, Martin (UFP-V) RID
Havlíček, Josef (UFP-V) RID, ORCIDSource Title Symposium on Plasma Physics and Technology 2014. - Prague : Czech Technical University in Prague, Faculty of Electrical Engineering, 2014 Number of pages 1 s. Publication form Print - P Action SPPT 2014 - 26th Symposium on Plasma Physics and Technology/26./ Event date 16.06.2014-19.06.2014 VEvent location Prague Country CZ - Czech Republic Event type EUR Language eng - English Country CZ - Czech Republic Keywords COMPASS tokamak ; plasma ; H-mode Subject RIV BL - Plasma and Gas Discharge Physics Annotation High-resolution Thomson scattering system on the COMPASS tokamak (R=0.56 m, a=0.2 m, divertor plasma configuration with ITER-like plasma cross-section) provides electron temperature and density profiles. The spatial resolution in the edge plasma region (~a/100) is optimized for edge transport barrier studies. Formation of characteristic edge profiles (pedestals) is observed during high-confinement mode, i.e. the core electron temperature and density are raised up by the value of pedestal height. Both the Te and ne pedestals are well-fitted by a modified hyperbolic tangent (mtanh) function. In this contribution, a fitting technique of the full radial profiles of electron temperature, density and pressure during H-mode is also described. Electron temperature and density on top of pedestal are statistically processed to find a possible threshold for various types of H-modes. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2015
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