First divertor exposure experiments of a renewable boron pebble aggregate in DIII-D

Erick Martinez-Loran, Angelica Ottaviano, Santhosh T. A. Kumar +21

Boron pebble aggregate was tested for the first time as a high-heat-flux granular plasma-facing material in a tokamak divertor. Exposures of up to $q_{\parallel} = \SI{80}{\MW\per\…