near-edge X-ray absorption fine-structure (NEXAFS) spectroscopy, as the detailed dependence of absorption on photon energy reveals much of the electronic structure — core and unoccupied valence ...

X-ray absorption spectroscopy (XAS) is a well-established and powerful ... The extended X-ray absorption fine structure (EXAFS) refers to the region well above the absorption threshold. The absorbed X ...

Synchrotron-based instruments provide high-sensitivity and high-spectral-resolution analyses for understanding details about the molecular structure ... used for X-ray absorption spectroscopy ...

This allows for the identification of the elements present, their chemical state, and the overall electronic structure of the surface layer. The process begins with the absorption of X-ray photons by ...

What is Scanning Transmission X-ray Microscopy (STXM)? Scanning Transmission X-ray Microscopy (STXM) is a powerful imaging technique that combines the principles of X-ray spectroscopy and microscopy ...

The main difference between these tools is that X-ray crystallography uses X-rays to determine the three-dimensional structure of a crystal, whereas NMR spectroscopy uses strong local magnetic ...

The X-Ray Imaging and Spectroscopy Mission (XRISM) has revealed the structure, motion and temperature of the material around a supermassive black hole and in a supernova remnant in unprecedented ...

In both techniques, how the radiation is dispersed indicates the atomic structure of the material ... A technique called X-ray absorption spectroscopy (XAS) helps ensure that the composition ...