Plasmoid drift during vertical pellet injection in FTU discharges

E. Giovannozzi, S.V. Annibaldi, L.R. Baylor, P. Buratti, M. De Benedetti, B. Esposito, D. Frigione, L. Garzotti, G. Granucci, O. Kroegler, D. Marocco, S. Martini, C. Mazzotta, G. Monari, P.B. Parks, L. Pieroni, P. Smeulders, M. Romanelli, D. Terranova, O. Tudisco

Research output: Contribution to conferencePaper

Abstract

MHD and plasmoids are key elements in pellet injection experiments on FTU. The plasmoid drift can take particles from the pellet ablation region to the q=1 surface in high field side (HFS) pellet injection on FTU. Then MHD reconnections could take density from that region to the plasma center. A strong MHD event would be triggered by the injected pellet in high current (1.1 MA) discharges. A preliminary comparison between the post-pellet experimental density profile in low current discharges (0.8 MA) and the result of a pellet ablation code is presented. Strong magnetic fluctuations develop during pellet ablation. They may be Alfvén waves generated by the drifting plasmoids, preliminary results are shown. Copyright © (2005) by the European Physical Society (EPS).
Original languageEnglish
Publication statusPublished - 2005
Externally publishedYes
Event32nd European Physical Society Conference on Plasma Physics and Controlled Fusion combined with the 8th International Workshop on Fast Ignition of Fusion Targets - , Spain
Duration: 1 Jan 2005 → …

Conference

Conference32nd European Physical Society Conference on Plasma Physics and Controlled Fusion combined with the 8th International Workshop on Fast Ignition of Fusion Targets
CountrySpain
Period1/1/05 → …

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All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

Cite this

Giovannozzi, E., Annibaldi, S. V., Baylor, L. R., Buratti, P., De Benedetti, M., Esposito, B., ... Tudisco, O. (2005). Plasmoid drift during vertical pellet injection in FTU discharges. Paper presented at 32nd European Physical Society Conference on Plasma Physics and Controlled Fusion combined with the 8th International Workshop on Fast Ignition of Fusion Targets, Spain.