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Figure 3
Energy resolution ΔE (FWHM) at the SMS branch determined from the spectra of different gases and compared with the ray-tracing calculation results obtained in XRT. (a) At 62.7 eV, with the help of the 2,13 Fano resonance in He (inset: He spectrum, exit slit 75 µm), (b) at 401 eV, with the help of the 1s → 2p(π*) resonance in N2 (inset: N2 spectrum, exit slit 20 µm), (c) at 867.3 eV, with the help of the 1s → 3p transition in Ne [inset: Ne spectra taken with the slits 10 and 100 µm and fitted with Voigt profiles and rounded box (R-box) profiles, respectively]. In all cases cff = 2.25, and the grating line density is 1221 mm−1.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 30| Part 4| July 2023| Pages 831-840
https://doi.org/10.1107/S1600577523003429
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