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Figure 9
Photon spectra for 22.16 keV X-rays illuminating a single pixel through a pinhole mask. The first peak corresponds to 0 absorbed photons, the second to 1 absorbed photon etc. A sum of Gaussians constrained to have the same separation between maxima is fitted to determine a pixel gain of 8.5 ± 0.02 ADU keV−1 in high-gain mode for this sensor bonded to the CU-APS-PAD ASIC.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 31| Part 5| September 2024| Pages 1217-1223
https://doi.org/10.1107/S160057752400643X
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