Laser cleaning of inorganic encrustation on excavated objects: evaluation of the cleaning result by means of multi-spectral imaging

This report addresses the removal of inorganic encrustations from excavated marble objects. The use of laser radiation was compared with established cleaning methods (micro-air abrasive, ultrasound pick, etc.) and proved to be the most desirable method as it preserves the authentic surface relief. I...

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Bibliographic Details
Published in:	Journal of cultural heritage Vol. 4; pp. 338 - 342
Main Authors:	Pouli, Paraskevi, Zafiropulos, Vassilis, Balas, Costas, Doganis, Yianna, Galanos, Amerimni
Format:	Journal Article
Language:	English
Published:	Elsevier SAS 2003
Subjects:	Evaluation Inorganic encrustation Laser cleaning Mapping Marble Multi-spectral imaging Evaluation Inorganic encrustation Mapping Multi-spectral imaging Marble Laser cleaning
Online Access:	Get full text
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Summary:	This report addresses the removal of inorganic encrustations from excavated marble objects. The use of laser radiation was compared with established cleaning methods (micro-air abrasive, ultrasound pick, etc.) and proved to be the most desirable method as it preserves the authentic surface relief. In order to choose the best parameters for laser cleaning, additional tests were performed to compare the effect of ultraviolet and infrared Q-switched pulses. The results were evaluated by means of multi-spectral imaging. It has been proven that such an imaging system can give significant information regarding the cleaning result and therefore highlights the potential for the in situ assessment of the laser cleaning process.
ISSN:	1296-2074 1778-3674
DOI:	10.1016/S1296-2074(02)01217-7