Liquid metal as the wall material of fusion reactors: deuterium retention and surface stability

Index of supplementary videos

Supplementary Video S5-1 shows a IR camera video in which the removal of oxide impurity layer (shiny part with high surface emissivity) by helium plasma can be seen and a clean liquid lithium surface (dark part with low emissivity) is slowly presented starting from the center.

Supplementary Video S5-2 shows a phantom fast camera video with Li I 670.8 nm filter during helium plasma cleaning shot. In the video droplet ejection from the surface can be observed.