Probing the (photo)chemical stability of Emerald Green in paintings by James Ensor and related historical art materials

This repository contains the raw X-ray Fluorescence (XRF) and X-ray Absorption Near-Edge Structure (XANES) datasets obtained at the Copper (Cu) and Arsenic (As) K-edges during the HG-227 experiments, conducted at the ID21 and BM23 beamlines. These data constitute a critical component of the scientific findings detailed in the accompanying Science Advances article, titled: "Discovering the Dual Degradation Pathway of Emerald Green in Oil Paints: the Effects of Light and Humidity" (DOI provided below). Please contact the authors should any additional details or context be required.