Implications of disturbed photon-counting statistics of Eiger detectors for X-ray speckle visibility experiments

Möller, J.; Reiser, M.; Hallmann, J.; Boesenberg, U.; Zozulya, A.; Rahmann, H.; Becker, A.-L.; Westermeier, F.; Zinn, T.; Zontone, F.; Gutt, C.; Madsen, A.

doi:10.1107/S1600577519006349

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Figure 1
Calculated speckle contrast of a static aerogel sample as a function of mean photon count per pixel $[\langle k\rangle]$ . The contrast is calculated following equation (9

). The overestimation of the speckle contrast increases with decreasing exposure time and intensity. The black dashed line corresponds to the expected value $[\beta _{0} = 0.23]$ .

JOURNAL OF
SYNCHROTRON
RADIATION

ISSN: 1600-5775

Volume 26| Part 5| September 2019| Pages 1705-1715

https://doi.org/10.1107/S1600577519006349

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