The new collective Thomson scattering diagnostic installed on the Frascati Tokamak Upgrade device started its first operations in 2014. The ongoing experiments investigate the presence of signals synchronous with rotating tearing mode islands, possibly due to parametric decay processes, and phenomena affecting electron cyclotron beam absorption or scattering measurements. The radiometric system, diagnostic layout, and data acquisition system were improved accordingly. The present status and near-term developments of the diagnostic are presented.
Advances in the FTU collective Thomson scattering system
See the Appendix of G. Pucella et al., Proceedings of the 25th IAEA Fusion Energy Conference, Saint Petersburg, Russia, 2014.
Contributed paper, published as part of the Proceedings of the 21st Topical Conference on High-Temperature Plasma Diagnostics, Madison, Wisconsin, USA, June 2016.
W. Bin, A. Bruschi, O. D’Arcangelo, G. Grosso, L. Lubiako, E. Alessi, C. Castaldo, C. Centioli, M. De Angeli, L. Figini, C. Galperti, S. Garavaglia, G. Granucci, M. Lontano, S. Magagnino, V. Mellera, D. Minelli, A. Moro, A. Muraro, A. Nardone, F. Orsitto, A. Simonetto, U. Tartari, FTU Team; Advances in the FTU collective Thomson scattering system. Rev. Sci. Instrum. 1 November 2016; 87 (11): 11E507. https://doi.org/10.1063/1.4955478
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