Laser cleaning applied in the restoration of a medieval wooden panel chamber at Pirna

Hendrik Wust; Guenter R. Wiedemann; Markus Schulz; Jan Hauptmann; Hans-Guenther Kusch; Sabine Mueller; Michael Panzner

doi:10.1117/12.375190

14 January 2000 Laser cleaning applied in the restoration of a medieval wooden panel chamber at Pirna

Hendrik Wust, Guenter R. Wiedemann, Markus Schulz, Jan Hauptmann, Hans-Guenther Kusch, Sabine Mueller, Michael Panzner

Proceedings Volume 3887, High-Power Lasers in Civil Engineering and Architecture; (2000) https://doi.org/10.1117/12.375190
Event: Advanced High-Power Lasers and Applications, 1999, Osaka, Japan

Abstract

This contribution presents, as a first result of thorough investigations concerning the effect of laser irradiation on wood, the laser cleaning applied in restoration and conservation of 600 years old wooden panels in an historically important building at Pirna. They were uncovered during archaeological examinations in 1994. In one room of that building the work of restoration revealed fully preserved wooden panels on walls and ceiling. Most panels on the walls are severely damaged and converged with multiple paint layer. Aim of the work is to remove the multiple paint laser from the severely damaged wooden panels. Conventional cleaning test showed that one of the methods known to restorers met the requirements. Therefore laser cleaning was tried. Investigations, like thermal measurements and SEM- images show that there is no damage due to laser cleaning. The ablation rate of laser cleaning depends on grade of decay and on thickness of paint layers. This presentation shows that ablation with short pulsed Nd:YAG-laser could be a new method for restoration of damaged wood surfaces.

Citation Download Citation

Hendrik Wust, Guenter R. Wiedemann, Markus Schulz, Jan Hauptmann, Hans-Guenther Kusch, Sabine Mueller, and Michael Panzner "Laser cleaning applied in the restoration of a medieval wooden panel chamber at Pirna", Proc. SPIE 3887, High-Power Lasers in Civil Engineering and Architecture, (14 January 2000); https://doi.org/10.1117/12.375190

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