Fig. 10From: Low-radiation dose XRF excited by MeV protons for cultural heritage samplesa PIXRF spectra measured using the Ge target for the simulated painting sample, where the hemp paper support was painted with a mixture of azurite and smalt. The height of the Cu–KαX-ray peak was ≈ 200 counts. b PIXRF spectrum measured for the same sample with the Cu target. The asterisks (*) indicate the peaks of the scattered primary photonsBack to article page