Fig. 4From: Survey on Van Gogh’s early painting technique through the non-invasive and multi analytical study of Head of peasantHead of peasant: MA-XRF imaging. MA-XRF imaging: a Visible photography, b Phosphorus distribution, c Calcium distribution. d Manganese distribution. e Iron distribution. f Zinc distribution. g Antimony distribution (K-ray). h Mercury distribution (L-ray). i Lead distribution (L-ray). j Lead distribution (M-ray). k Bismuth distribution (L-ray)Back to article page