Design of multi-range tomographic system for transport studies in tokamak plasmas

0349744 - ÚFP 2011 RIV NL eng J - Journal Article
Weinzettl, Vladimír - Naydenkova, Diana - Šesták, David - Vlček, Jiří - Mlynář, Jan - Melich, Radek - Jareš, Daniel - Malot, J. - Sarychev, D. - Igochine, V.
Design of multi-range tomographic system for transport studies in tokamak plasmas.
Nuclear Instruments & Methods in Physics Research Section A. Roč. 623, č. 2 (2010), s. 806-808. ISSN 0168-9002. E-ISSN 1872-9576.
[International Conference on Frontiers in Diagnostic Technologies/1st./. Frascati, 25.11.2009-27.11.2009]
R&D Projects: GA ČR GA202/09/1467
Institutional research plan: CEZ:AV0Z20430508
Keywords : SXR * Bolometry * Visible light * Tokamak * COMPASS
Subject RIV: BL - Plasma and Gas Discharge Physics
Impact factor: 1.142, year: 2010
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The integrated spectroscopic system for visible plasma radiation, soft X-ray, and bolometric measurements has been designed for the COMPASS tokamak. This diagnostic allows tomographic reconstruction at a few microseconds time base and features an improved spatial resolution about 1 cm in the pedestal region, where the highest gradient of plasma pressure drives turbulent structures and their propagation towards the wall. In combination with other developed diagnostics on COMPASS, it represents an ideal tool for a measurement and characterization of these radiating plasma structures, which are responsible for an extremely high particle/energy transport across magnetic field. The design of the new integrated multi-channel spectroscopic diagnostics is reviewed and corresponding technical challenges are described. Additionally, the methods, which will be used for data processing, are briefly mentioned and target physics is discussed.
Permanent Link: http://hdl.handle.net/11104/0189901