Figure 12

(a): The first 5 TCSPC histograms of subsequent 20ms time slices of data. (b): The position of the peaks of all of the 20ms slices (blue, solid) and the same data corrected for the “wrapping” around of the histograms as they under/over flow around the x axis of figure (a) (orange, dashed). The gradient of this line gives the discrepancy between the guessed clock and the actual clock