IPERION HSIntegrated Platform for the European Research Infrastructure

X-ray absorption near edge structure (XAS)

XAS, including EXAFS and XANES, is a type of absorption spectroscopy that indicates the features in the X-ray absorption spectra (XAS) of condensed matter due to the photoabsorption cross section for electronic transitions from an atomic core level to final states.

Fields of application

  • Cultural heritage

    archaeological object and site, architecture, art, decorative arts, demo anthropologic object, film, manuscript, mosaics, musical instrument, other, painting, papyrus, photo, sculpture, textile

  • Natural heritage

    animal product, botanic collection, fossil, mineral, other, shell, skeleton, taxidermy collection

Materials

  • inorganic

    glass, stone, metal and metallurgical By-Products, ceramic (clay, mud brick, terracotta, earthenware, stoneware, porcelain), pigment

  • organic

    animal parts, binding media, glues, wood, paper, textiles, varnishes

TOOLS

PUMA beamline

PUMA (French for "Photons Utilisés pour les Matériaux Anciens") is a hard X-ray imaging beamline optimized for the scientific communities of the heritage sciences. It has a 2D scanning endstation with an X-ray microbeam of 5 µm (horizontal) x 3 µm (vertical) spot size, allowing users to obtain X-ray fluorescence spectroscopy (XRF), X-ray absorption near-edge...

Contact person
Sebastian Schoeder