Fig. 6From: Possible modifications of parchment during ion beam analysisTransmitted-light photograph of a parchment sample which underwent a short bath [5 min] in 3% H2O2 solution. Accumulated charge: 2, 3 (upper left and right spots), 4 and 5 (lower left and right spots) µC/cm2, current 1 nA). The photo was taken after dryingBack to article page