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Proceedings Paper

Laser cleaning applied in the restoration of a medieval wooden panel chamber at Pirna
Author(s): Hendrik Wust; Guenter R. Wiedemann; Markus Schulz; Jan Hauptmann; Hans-Guenther Kusch; Sabine Mueller; Michael Panzner
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Paper 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.

Paper Details

Date Published: 14 January 2000
PDF: 10 pages
Proc. SPIE 3887, High-Power Lasers in Civil Engineering and Architecture, (14 January 2000); doi: 10.1117/12.375190
Show Author Affiliations
Hendrik Wust, Fraunhofer Institut fuer Werkstoff- und Strahltechnik (Germany)
Guenter R. Wiedemann, Fraunhofer Institut fuer Werkstoff- und Strahltechnik (Germany)
Markus Schulz, Fine Art Conservator (Germany)
Jan Hauptmann, Fraunhofer Institut fuer Werkstoff- und Strahltechnik (Germany)
Hans-Guenther Kusch, Fraunhofer Institut fuer Werkstoff- und Strahltechnik (Germany)
Sabine Mueller, Fraunhofer Institut fuer Werkstoff- und Strahltechnik (Germany)
Michael Panzner, Fraunhofer Institut fuer Werkstoff- und Strahltechnik (Germany)


Published in SPIE Proceedings Vol. 3887:
High-Power Lasers in Civil Engineering and Architecture
Sadao Nakai; Lloyd A. Hackel; Wayne C. Solomon, Editor(s)

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