Figure 1
From: Spatial uniformity and temporal stability of pixel-to-pixel variation in mini-SiTian CMOS detector

MST2 is outfitted with a diffuser plate to homogenize the incident light. Left panels: 20 pixel-to-pixel variations from November 6, 2023. The observation times are marked in each panel, and the panels are numbered in the order of observation time. The standard deviations of pixel-to-pixel variation are also calculated and indicated in each panel. Right panels: the result of subtracting 20 pixel-to-pixel variations by the first one. Color bar is overplotted at the right indicating the normalized electrical signal, respectively. The standard deviation are also labeled in each panel.