Investigation of (micro-)meteoritic materials at the new hard X-ray imaging PUMA beamline for heritage sciences

At the French synchrotron facility SOLEIL, a new X-ray imaging facility PUMA (Photons Utilis é s pour les Mat é riaux Anciens) has been made available to scientific communities studying materials from cultural heritage. This new instrument aims to achieve 2D and 3D imaging with microscopic resolution, applying different analytical techniques including X-ray fluorescence spectroscopy (XRF), X-ray absorption spectroscopy (XAS), X-ray diffraction and phase-contrast imaging. In order to discover its capabilities a detailed analytical characterization of this beamline as an analytical and imaging tool is deemed necessary. In this work, (confocal) XRF and XAS analyses are demonstrated using the Seymchan pallasite meteorite and an Antarctic unmelted micrometeorite as case studies. The obtained spatial resolution (2   µ m × 3   µ m) and sensitivity (detection limits

Source: Journal of Synchrotron Radiation - October 9, 2019 Category: Physics Authors: Tack, P. Bazi, B. Vekemans, B. Okbinoglu, T. Van Maldeghem, F. Goderis, S. Sch ö der, S. Vincze, L. Tags: PUMA confocal XRF XANES differential imaging cultural heritage micrometeorite pallasite research papers Source Type: research