Abstract

Abstract X-rays interactions with atoms should be well understood quantitatively. Reliable knowledge of the complex X-ray form factor (Re( f ) and f ″) and the photoelectric attenuation coefficient σ PE is required for crystallography, medical diagnosis, radiation safety and XAFS studies. Discrepancies between currently used theoretical approaches of 200% exist for numerous elements from 1 to 3 keV X-ray energies. This paper addresses key discrepancies and derives new theoretical results in near-edge soft X-ray regions of recent interest.

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