Evolution of electron temperature and density profiles in edge transport barrier in the COMPASS tokamak

Štefániková, Estera; Böhm, Petr; Aftanas, Milan; Bílková, Petra; Weinzettl, Vladimír; Stöckel, Jan; Pánek, Radomír; Scannell, R.; Urban, Jakub; Peterka, Matěj; Imríšek, Martin; Havlíček, Josef

Number of the records: 1

Evolution of electron temperature and density profiles in edge transport barrier in the COMPASS tokamak

1.

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, ORCID}
Source 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

Number of the records: 1