This week’s Image of the Week is taken from a recent JPhysB paper in which theoretical methods are used to study the photo-double ionization of carbon dioxide. O Alwan et al determine the multiply differential cross section of a CO2 molecule which has been doubly ionized by a polarized photon. The molecule ejects two electrons at different angles, and the cross section varies with the angle of ejection, which is what this image shows.
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Front Image and article image: Representation of the variation of the TDCS in terms of the two ejection angles, adapted from O Alwan et al 2015 J. Phys. B: At. Mol. Opt. Phys. 48 185203