Studies of C-pellet ablation cloud structure on Wendelstein7-AS stellarator

Introduction. Predictions of the particle deposition profiles produced by ablating pellets in tokamaks and stellarators are fundamentally interesting for such applications of pellet injec-tion as fuelling, diagnostics and burn control [1], [2]. Studies of the pellet ablation cloud structure using photographic technique could clarify the mechanisms of the basic physical processes of the pellet-plasma interaction. In this paper, we present results of the ablatio