Macro-XRF is a non-destructive technique that analyzes inorganic elements in large dimension artworks. It scans surfaces to create 2D chemical maps, revealing hidden layers, pigments, and artistic techniques.

Macro X-ray Fluorescence Imaging (Macro-XRF) is a non-destructive chemical analysis technique used to study the composition and distribution of inorganic chemical elements in large-scale samples, such as artworks and archaeological artifacts. Based on the interaction between X-rays and matter, the technique utilizes the X-ray fluorescence generated when a sample is irradiated with an X-ray beam. Atoms within the sample, when excited, emit characteristic radiation that allows their chemical composition to be identified. Unlike traditional XRF analysis, which focuses on a single point, Macro-XRF enables the scanning of large surfaces, producing two-dimensional maps with variable spatial resolution (typically between 250 and 1000 micrometers), depending on the size of the analyzed area. This capability is particularly useful for studying paint layers, pigments, pentimenti, or materials hidden beneath the surface of an artwork, offering insights into artistic or manufacturing techniques, creative processes, and production methods.

Activity should be performed following the local rules ofor radioprotection. Permissions must be granted by the user before starting the activity.