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Figure 11
Cluster counting performance for typical ΔTs = 0.5 µs time-slices, for different energies (ɛ) and beam rates (r). Crosses indicate the cluster centroids from MC and circles are the clusters found by K-means. The average counting-efficiency and purity along the detector are given below in brackets. Top left: ɛ = 64 keV and r = 3.7 × 1010 photons s−1 (εcounting = 88.2%, pcounting = 86.9%). Top right: ɛ = 64 keV and r = 7.5 × 1010 photons s−1 (εcounting = 84.2%, pcounting = 83.2%). Bottom left: ɛ = 30 keV and r = 6.5 × 1010 photons s−1 (εcounting = 87.9%, pcounting = 87.5%). Bottom right: ɛ = 30 keV and r = 1.3 × 1011 photons s−1 (εcounting = 83.9%, pcounting = 83.1%). For ɛ = 30 keV only about half of the clusters are produced, which enables measuring at higher beam rates than ɛ = 64 keV, at comparable efficiency and purity.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 28| Part 5| September 2021| Pages 1558-1572
https://doi.org/10.1107/S1600577521005919
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