Fig. 4
From: Methodology for quantifying particle charge statistics in electric fields of gas insulations

The charge distributions of ZnO particles are approximated using KDEs with a CI at two field strengths. (a) The charge distribution of upward-moving particles is shown for the diameter class of 12.5\(\upmu\)m. (b) The charge distribution of the downward-moving particles is shown for the same particle diameter class. (c) Particles from the 145\(\upmu\)m diameter class show a similarly shaped charge distribution with higher charge magnitudes. (d) For the downward motion of the same diameters, similar but mirrored distribution shapes obtained.