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Below the first plot shows the energy distribution of the V1 and V4 algorithms while the second shows them overlapped. Visually, there appears to be very little difference between the two algorithms. This isn't too surprising since, when looking at single photons with a rank of 1, the cases which the V4 algorithm ignores would be very rare. The V1 data is the same as before, while a Gaussian fit to the V4 curve has a mean of 140.67 ± 0.06 with an RMS of 9.01.

V1 Peak Data - 25657 peaks
Mean: 141.970 +/- 0.054
Std : 8.616

V4 Peak Data - 25433 peaks
Mean: 140.665 +/- 0.057
Std : 9.028
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Closer Look at the Effect of Pixel Size

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