Figure 9
(a) Raw data from a HOPG sample over a large energy-loss range. The shown data were averaged module-by-module, i.e. the shown spectra are averages over signals from 12 analyzer crystals. (b) Carbon K near-edge data after background subtraction and normalization of the data shown in part (a). The spectra depend strongly on the scattering angle because of the anisotropy of HOPG. |