Seminario

Il giorno 21 ottobre alle ore 11,30 presso l'aula 412, Dr. Amelia Suzuki Istituto di Scienze del Patrimonio ( ISPC CNR ) & Nottingham Trent University ( NTU ) terra' un seminario dal titolo

Operando VIS-NIR microscopic hyperspectral imaging for synchrotron X-ray damage monitoring on paintings

Abstract

Synchrotron X-ray techniques (such as diffraction XRD, fluorescence XRF, and absorption XAS) are invaluable for the
characterization of artists’ materials However, their application in Heritage Science ( is hindered by the higher
damage probability of X ray synchrotron radiation ( that is orders of magnitude more intense and brighter than
conventional laboratory sources Although damage risk awareness raised in the last decade, still little is known
regarding the characteristics and reversibility of alterations induced on paintings, and fundamental studies to
understand radiation damage affecting historical materials is still limited and necessary to develop effective
mitigation strategies for HS users.
In this seminar the in house VIS NIR microscopic hyperspectral imaging system developed for the monitoring of
radiation damage will be presented The system was adopted for operando SR X ray damage monitoring during a
XAS experiment at micro X ray beamlines for the speciation of painting’s materials on mock ups containing radiation sensitive common artists’ pigments The strength of the method relies on the ability to detect subtle and early warning signs of damage of both physical and chemical entity, not visible by eye nor by any XAS spectral changes.
Thus, the method contributes to the improvement of analytical protocols that are necessary to support the rising HS
synchrotron users community and it represents a valuable strategy to preserve the integrity of artworks analysed in
large scale facilities.

Gmeet: meet.google.com/ cdq tywu xdg