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Figure 3
An emission spectrum of the Cu PXS driven by the LEGEND laser, depicting characteristic copper lines together with Bremsstrahlung radiation, measured with a 360 µm-thick aluminium filter inserted in front of a single-photon-counting silicon detector (AMPTEK Si-PIN detector with thickness of 500 µm). The inset displays the Kα and Kβ emission lines in higher resolution. The resulting spectrum is corrected for air absorption and aluminium attenuation, as well as absorption in silicon (Henke et al., 1993BB26). Energy calibration of the spectrometer was performed using lines of 55Fe and 241Am radioactive sources. The spectrum was measured at a distance of 1.6 m with an exposure time of 22 min.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 32| Part 2| March 2025| Pages 486-495
https://doi.org/10.1107/S1600577525000645
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