Fig. 2
From: Observation of two types of charge-density-wave orders in superconducting La2-xSrxCuO4

RSXS measurements on LSCO. a A schematic sketch showing the RSXS experimental setup. The top and bottom parts in each CCD image are regarded as the fluorescence (Fluo.) background. b The projected intensity profiles along the h-direction at both the CDW area (k ~ 0 r.l.u.) and fluorescence area (k ~ ± 0.04 r.l.u.). c The CDW profile after subtracting the fluorescence background. The data in (b) and (c) is for x = 0.13 sample measured at 23 K. d Scattering patterns for various LSCO samples after subtracting the background. Measurements were taken at respective Tc. The dashed circles outline the intensity contour