Fig. 3
From: Femtosecond X-ray coherent diffraction of aligned amyloid fibrils on low background graphene
Diffraction images obtained at the LCLS in the CXI nanofocus chamber. a The average background from 1,607 selected frames with graphene but without sample. The diffuse scattering of the silicon and some contamination is visible. Single frames from b TMV and c the amyloid bombesin. a–c The grayscale shows photons per pixel. The average background contains 119,556 scattered photons, which is equivalent to about 0.050 photons/pixel (a). d Traces from the diagonal lines in (a–c) plotted as a function of reciprocal resolution R (Å−1). The average background of graphene-covered holes is two orders of magnitude lower than that due to the samples
