The “Historical Materials BAG”
A New Facilitated Access to Synchrotron X-ray Diffraction Analyses for Cultural Heritage Materials at the European Synchrotron Radiation Facility
Marine Cotte (European Synchrotron Radiation Facility, Sorbonne Université)
Victor Gonzalez (Université Paris-Saclay)
Frederik Vanmeert (Royal Institute for Cultural Heritage (KIK-IRPA), Universiteit Antwerpen)
Núria Jiménez (Universitat Politecnica de Catalunya)
Elena Possenti (National Research Council)
Marta Ghirardello (Politecnico di Milano)
Ermanno Avranovich Clerici (Universiteit Antwerpen, TU Delft - Mechanical Engineering)
Riccardo Vivani (Università degli Studi di Perugia)
Yoko Taniguchi (University of Tsukuba)
Joanne McCarthy (European Synchrotron Radiation Facility)
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Abstract
The European Synchrotron Radiation Facility (ESRF) has recently commissioned the new Extremely Brilliant Source (EBS). The gain in brightness as well as the continuous development of beamline instruments boosts the beamline performances, in particular in terms of accelerated data acquisition. This has motivated the development of new access modes as an alternative to standard proposals for access to beamtime, in particular via the “block allocation group” (BAG) mode. Here, we present the recently implemented “historical materials BAG”: a community proposal giving to 10 European institutes the opportunity for guaranteed beamtime at two X-ray powder diffraction (XRPD) beamlines—ID13, for 2D high lateral resolution XRPD mapping, and ID22 for high angular resolution XRPD bulk analyses—with a particular focus on applications to cultural heritage. The capabilities offered by these instruments, the specific hardware and software developments to facilitate and speed-up data acquisition and data processing are detailed, and the first results from this new access are illustrated with recent applications to pigments, paintings, ceramics and wood.
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