Fast backward drift of pellet ablatant in tokamak plasmas

TitleFast backward drift of pellet ablatant in tokamak plasmas
Publication TypeJournal Article
Year of Publication1999
AuthorsJ. de Kloe, E. Noordermeer, N.JL Cardozo, A.AM Oomens
JournalPhysical Review Letters
Volume82
Number13
Pagination2685-2688
Date PublishedMar 29
ISBN Number0031-9007
Abstract

Pellet ablation in the Rijnhuizen Tokamak Project has been studied with an array of 16 fibers viewing the pellet trajectory along very narrow lines of sight. Rapid backward drift of the ablation cloud away from the pellet was observed. This has implications for the determination of the fueling profile and the penetration of the pellet in the plasma. Furthermore, this movement of the ablation cloud offers a new explanation for the often observed striations in the light emission. In contrast to the picture of the pellet periodically leaving the ablation cloud, the ablation cloud moves periodically away from the pellet. [S0031-9007(99)08796-7].

DOI10.1103/PhysRevLett.82.2685
PID

93a09af1271f9ecf18f9d97a3fe66c46

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