Electron orbital imaging is an X-ray synchrotron technique used to produce images of electron (or hole) orbitals in real space. It utilizes the technique of X-ray Raman scattering (XRS), also known as Non-resonant Inelastic X-Ray Scattering (NIXS) to inelastically scatter electrons off a single crystal. It is an element specific spectroscopic technique for studying the valence electrons of transition metals.