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SYCH: Intersectional Symposium Cultural Heritage in the Light of Physical Methods

SYCH 1: Cultural Heritage in the Light of Physical Methods I

SYCH 1.4: Hauptvortrag

Donnerstag, 17. März 2011, 15:30–16:00, HSZ 02

3D X-ray view of treasures — •Birgit Kanngießer, Ioanna Mantouvalou, and Wolfgang Malzer — Technische Universität Berlin, Berlin, Deutschland

X-radiation is the light for going into the depth. It has the appropriate energy to penetrate and explore matter on a macroscopic as well as on an atomic scale. In atoms deep core holes can be created in order to investigate the fundamental reactions of the many electron system to this *deep* perturbation. Among these fundamental reactions is the emission of fluorescence light, which may be utilised as a highly sensitive *fingerprint* of the acting atom and its chemical environment. On the macroscopic scale matter can be illuminated and investigated within depths ranging up to the cm regime. X-ray fluorescence spectroscopy is a research and technology tool which benefits from both the radiation properties and instrument developments. Besides being a spectroscopy tool it is also a highly successful non-destructive analytical method for the determination of elemental composition in a large variety of fields of application.

The newest methodological development in X-ray fluorescence spectroscopy is its expansion into the depth with a confocal set-up for X-rays using X-ray optics. If the sample is scanned systematically in the lateral dimension as well as into the depth a 3D Micro X-ray Fluorescence Spectroscopy can be performed. Just from the beginning one main field of application of the method was art and cultural heritage. On the basis of examples the wide range of application of this 3D X-ray view of treasures is outlined.