Fig. 6. Simulated valence and core electron charge densities for smaller probes.

Valence, core, and net electron charge densities for a geometrical aberration free 80 kV electron beam with: a–c a 30 mrad convergence angle with 7.5 nm FWHM chromatic focal spread and 0.7 Å source size. d–f 30 mrad convergence angle and no chromatic and 0.7 Å source size. g–i 60 mrad convergence angle and no chromatic and 0.35 Å source size. Note that all images are shown with a logarithmic intensity scaling calculated as log_e(|charge density|+1). All images share the same scalebar with (i).