Fig. 5From: Odilon Redon’s noir drawings: characterization of materials and methods using noninvasive imaging and spectroscopiesMA-XRF distribution map of S-K in a detail of Head within an Aureole. Scan parameters: 120 μm spot size, 150 μm step size, 8 ms dwell time 17.1 × 12.7 cm area imagedBack to article page