laser cleaning, pulsed Nd:YAG laser, monuments of history and culture, restoration, X-ray fluorescence spectral analysis " />

LASER CLEANING OF HISTORICAL MONUMENTS

V. Parfenov, A. Gerashchenko, M. Gerashchenko, I. Grigoryeva


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Abstract

Results of experimental work on laser cleaning of historical copper monuments are presented. Surface cleaning was carried out by means of pulsed Nd:YAG laser (wave length of 1064 nm, pulse duration of 30-110 μs, energy density10-25 J/cm²). Efficiency of laser treatment was controlled using X-ray fluorescence spectrometer. Performed investigations demonstrated a high efficiency of laser cleaning and possibility of laser use with specified parameters in restoration of copper monuments.


Keywords:   laser cleaning, pulsed Nd:YAG laser, monuments of history and culture, restoration, X-ray fluorescence spectral analysis

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