Abstract
The intrinsic dust dynamics for different discharge conditions and temporal correlation of dust events with plasma parameters have been first studied using a fast camera in Experimental Advanced Superconducting Tokamak. Dissimilarities in dust dynamics have been observed with dust coming out from upper tungsten and lower graphite divertors. Specific features like dust production at hotspot and dust ablation have been reported. It has been observed that in the ion cyclotron range of frequencies heating pulse duration dust events were significantly lower in both disruptive and non-disruptive discharges with combination of other auxiliary heating powers. The temporal correlation of dust events with plasma parameters in disruptive discharges preceded by vertical displacement events revealed the causality link between the dust release and disruptions. The detailed analysis of the dust rate in disruptive discharges has been presented.
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