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Figure 6
Probability P(k) of detecting k = 1, 2, 3, 4 photons as a function of the averaged number of photons per pixel kavg in the speckle pattern. Probabilities were evaluated based on series of 22443 single-pulse images recorded for 0.015 < kavg < 0.16 photons per pixel. Solid lines represent the best fit using a negative binomial distribution [equation (2)[link]] for Meff = 2.5 ± 0.2. Predictions for Meff = 1 and Meff = 100 are shown with dotted and dashed lines, respectively.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 23| Part 5| September 2016| Pages 1171-1179
https://doi.org/10.1107/S1600577516010869
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