This document summarizes an SEM imaging study comparing gallium nanowire samples with high arsenic (1768), low arsenic (1769), and no arsenic (1770). Key findings include: 1. Yield increases with dose up to 85% but levels off, and yield is lower for P1000 than P360 pads. Diameter increases with dose and pitch but is greatest for 1768. 2. Morphology differs between samples - 1768 is uniform, 1769 leans significantly, and 1770 has large gallium droplets. Larger dose samples are less straight. 3. Methods involved imaging pads at different zooms and doses to measure yield, diameter, and morphology variations between