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Conference paper ยท Journal article

Collective Thomson scattering data analysis for Wendelstein 7-X

From

Eindhoven University of Technology1

Max Planck Institute for Plasma Physics2

Department of Physics, Technical University of Denmark3

Collective Thomson scattering (CTS) diagnostic is being installed on the Wendelstein 7-X stellarator to measure the bulk ion temperature in the upcoming experimental campaign. In order to prepare for the data analysis, a forward model of the diagnostic (eCTS) has been developed and integrated into the Bayesian data analysis framework Minerva.

Synthetic spectra have been calculated with the forward model and inverted using Minerva in order to demonstrate the feasibility to measure the ion temperature in the presence of nuisance parameters that also influence CTS spectra. In this paper we report on the results of this anlysis and discuss the main sources of uncertainty in the CTS data analysis.

Language: English
Year: 2017
Pages: C08015-C08015
Proceedings: 2nd European Conference on Plasma Diagnostics
ISSN: 17480221
Types: Conference paper and Journal article
DOI: 10.1088/1748-0221/12/08/C08015
ORCIDs: Salewski, Mirko

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