Portable X-ray fluorescence MONARIS

Session AAP :

AAP 2023-1

Scientific responsability :

  • Ludovic Bellot-Gurlet
  • Laurence Galoisy

Partnership :

Funding :

  • Sorbonne université
  • Plateforme PLASVO

Summary :

The MONARIS laboratory (UMR 8233 CNRS-SU) has nearly 40 years of experience in the analysis of heritage objects and materials and hosts an analytical platform of vibrational and optical spectroscopies (PLASVO) unique in France thanks to the variety of Raman, infrared and UV-Vis spectrometers. The combination of laboratory and mobile instruments, of which 5 are involved in the researches developed around heritage materials, coupled with very high quality optics and various accessories allows structural micro-analysis either in the laboratory or on heritage sites. For its part, the IMPMC has more recently developed a portable optical absorption spectroscopy device. This device currently enables in situ measurements to be carried out on particularly fragile stained glass windows in the near UV-VIS-NIR range (300-2500 nm).
In order to complete the structural characterisations carried out on site, MONARIS and the IMPMC would like to complete this platform with a portable elemental analysis equipment allowing to work on a small scale and to carry out elemental mapping. A compact X-ray fluorescence spectrometer would make it possible to combine elemental analysis and structural analysis during the same on-site measurement session, and thus to support interpretations when Raman, IR and/or optical absorption analyses are not sufficient to document composition/structure relationships. This equipment will represent an important development of the skills of the analytical platforms of the laboratories involved, but also a first proximity mutualisation at the Sorbonne University level by a sharing of use between MONARIS and the IMPMC, both developing research and experimental innovations on heritage materials.