Results from a 50-h series of the NTBRMDI2 study with single-binned pixels, 4″ × 1.68″. (a) Distribution of the peak event count rates per event area (top panel). (b) Distribution of the peak thermal energy, assuming the depth of the O V emission along the line of sight to be equal to the event length along the slit (middle panel). (c) Distribution of the thermal energy, assuming a constant depth along the line of sight, D = 1.68″. In all panels, the curve on the far left shows one-pixel events, the middle distribution is for two-pixel events, and the distribution on the far right shows ≥2-pixel events. The straight lines in all panels are power-law fits obtained separately for each event population. The energy along the X-axis in panels (b) and (c) is an upper limit derived with f = 1 (see Sects. 4.4 and 4.6 for a discussion).