Fig 2. (a) and (b) are two snapshots taken at an x-y plane parallel to the powder layer plane before and 0.008 seconds after the start of the scanning process. (c) Shows a magnified view of (b) where detailed powder particles’ movement along with their velocity magnitude and directions are shown.

Fig 2. (a) and (b) are two snapshots taken at an x-y plane parallel to the powder layer plane before and
0.008 seconds after the start of the scanning process. (c) Shows a magnified view of (b) where detailed
powder particles’ movement along with their velocity magnitude and directions are shown.