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: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

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.

Original languageEnglish
Title of host publication32nd EPS Conference on Plasma Physics 2005, EPS 2005, Held with the 8th International Workshop on Fast Ignition of Fusion Targets - Europhysics Conference Abstracts
Pages654-657
Number of pages4
StatePublished - 2005
Event32nd European Physical Society Conference on Plasma Physics and Controlled Fusion combined with the 8th International Workshop on Fast Ignition of Fusion Targets - Tarragona, Spain
Duration: Jun 27 2005Jul 1 2005

Publication series

Name32nd EPS Conference on Plasma Physics 2005, EPS 2005, Held with the 8th International Workshop on Fast Ignition of Fusion Targets - Europhysics Conference Abstracts
Volume1

Conference

Conference32nd European Physical Society Conference on Plasma Physics and Controlled Fusion combined with the 8th International Workshop on Fast Ignition of Fusion Targets
Country/TerritorySpain
CityTarragona
Period06/27/0507/1/05

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