Figure 5
Energy dependence of the SNR for parameters relevant to 8-ID. The brilliance of the APS undulator A, the attenuation of four 0.25 mm Be windows, and the measured efficiency and detector size of the SMD 1M60 detector (Falus et al., 2004) are taken into account. The SNR is calculated taking into account the effect of longitudinal coherence and the correction for azimuthal averaging. The solid line is unaffected both by the longitudinal and azimuthal correction. |