REMOVAL OF BIODETERIORATION FROM SURFACE OF STONE MONUMENTS BY MEANS OF LASER TREATMENT (EXPERIMENTAL BASE OF LASER REMOVAL OF BIOLOGICAL GROWTH)

Results of experimental studies on development of laser technology for removal of microfungi from stone sur-faces are presented. In the work pulsed solid-state Nd:YAG laser with wavelength of 1064 nm and model sam-ples from marble and sandstone were used. The task of the work was the optimization of laser output parame-ters for achievement of exposure doses requiring for mechanical ejection and inactivation of these microorgan-isms.

Authors: A. N. Gerashchenko, V. A. Parfenov, I. Yu. Kirtsideli

Direction: Instrument Engineering and Information-Measurement Technologies

Keywords: Biological destruction of monuments, microscopic fungi, micromycetes, laser cleaning, restoration

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