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. 2014 Aug 1;47(Pt 4):1329–1336. doi: 10.1107/S1600576714013028

Table 3. Performance parameters of the double-crystal beam-multiplexing monochromator at the LCLS.

Inline graphic: the width of a spectral notch in the transmitted averaged spectrum at 7.9 keV; T: throughput of the transmitted branch at 7.1 keV; Inline graphic: FWHM of the rocking curve of the second diamond crystal at 7.9 keV; Inline graphic: FWHM of the rocking curve of the Si(440) analyzer at 7.9 keV (in units of photon energy); Inline graphic: throughput of the monochromatic branch normalized by the throughput of the Si(111) double-crystal monochromator at 7.9 keV.

Parameter Inline graphic (eV) T Inline graphic (µrad) Inline graphic (eV) Inline graphic
Experiment 0.5 0.57 27.5 0.35 0.47
Theory 0.43 0.59 24.4 0.34 0.47