Collective Thomson scattering measurements with high frequency resolution at TEXTOR

Stejner, M.; Nielsen, S. K.; Korsholm, S. B.; Salewski, M.; Bindslev, H.; Furtula, V.; Leipold, F.; Meo, F.; Michelsen, P. K.; Moseev, D.; Bürger, A.; Kantor, M.; de Baar, M.
October 2010
Review of Scientific Instruments;Oct2010, Vol. 81 Issue 10, p10D515
Academic Journal
We discuss the development and first results of a receiver system for the collective Thomson scattering (CTS) diagnostic at TEXTOR with frequency resolution in the megahertz range or better. The improved frequency resolution expands the diagnostic range and utility of CTS measurements in general and is a prerequisite for measurements of ion Bernstein wave signatures in CTS spectra. The first results from the new acquisition system are shown to be consistent with theory and with simultaneous measurements by the standard receiver system.


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