X-ray diffraction from strongly bent crystals and spectroscopy of X-ray free-electron laser pulses

Kaganer, V.M.; Petrov, I.; Samoylova, L.

doi:10.1107/S2053273319014347

Acta Crystallographica Section A
Acta Crystallographica
Section A FOUNDATIONS AND ADVANCES

IUCr IT WDC

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Figure 7
Spectra of the waves incident on (a)–(d) diamond or (e) a silicon plate of thickness D = 20 µm bent to a radius of R = 10 cm (thick grey lines) and spectra of the diffracted waves in the Fraunhofer diffraction case (thin black or blue lines). The incident beam width is w = 500 µm (a), (c)–(e) or 50 µm (b). The pulse duration is 10 fs (a), (b) and the undulator length is 75 m, or the pulse duration is 42 fs (c)–(e) and the undulator length is 105 m. The spectrum of the incident wave is convoluted, according to equation (17)