Investigation of turbulent transport of heavy impurities in FTU electron heated plasmas

M. Romanelli, M. Leigheb, L. Gabellieri, L. Carraro, M.E. Puiatti, M. Valisa, M. Mattioli, L. Lauro-Taroni, M. De Benedetti, M. Marinucci, C. Mazzotta, G. Regnoli, P. Smeulders, S. Novak, C. Sozzi

Research output: Contribution to conferencePaper

Abstract

We have investigated experimentally the effect of ECRH heating on impurity transport by injecting Mo in full LHCD FTU plasmas. The experiments show that there is no accumulation of the Mo for PECRH≤ 400 kW, where the injected impurity outflows on a time scale of the order of the energy confinement-time. By increasing the coupled ECRH power up to 800 kW we find that a strong inward pinch develops in the central region (r≤5 cm) which brings to the accumulation of the Mo as seen by the central SXR line of sight, while the inward pinch in the region outside the peak of the ECRH power-deposition- profile (r=10 cm) is reduced.
Original languageEnglish
Publication statusPublished - 2006
Externally publishedYes
Event33rd European Physical Society Conference on Plasma Physics 2006, EPS 2006 - , Italy
Duration: 1 Jan 2006 → …

Conference

Conference33rd European Physical Society Conference on Plasma Physics 2006, EPS 2006
CountryItaly
Period1/1/06 → …

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All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

Cite this

Romanelli, M., Leigheb, M., Gabellieri, L., Carraro, L., Puiatti, M. E., Valisa, M., ... Sozzi, C. (2006). Investigation of turbulent transport of heavy impurities in FTU electron heated plasmas. Paper presented at 33rd European Physical Society Conference on Plasma Physics 2006, EPS 2006, Italy.