TY - GEN A1 - Pentzien, Simone A1 - Conradi, Andrea A1 - Krüger, Jörg A1 - Wurster, R. ED - M. Castillejo, ED - P. Moreno, ED - M. Oujja, ED - R. Radvan, ED - J. Ruiz, T1 - Monitoring of the laser cleaning process of artificially soiled paper T2 - LACONA VII International Conference, "Lasers in the Conservation of Artworks", September 17-21, 2007, Madrid, Spain (Proceedings) N2 - Laser cleaning of soiled paper is a challenging task due to the fact that a contamination has to be removed and a fragile organic material has to be preserved. The ejection of particles forms a significant channel for the removal of unwanted surface contaminations and can be exploited for an in-situ monitoring of the cleaning procedure. 532-nm-nanosecond single and multi pulse laser cleaning of artificially soiled Whatman© paper was performed. Particles were registered with a dust monitor. These in-situ experiments were combined with ex-situ investigations of cleaning and substrate damage thresholds by means of light and scanning electron microscopic techniques. The cleaning efficiency measured by a multi-spectral imaging system was compared to the in-situ particle monitoring. Additionally, possible color changes of the paper substrate were evaluated. T2 - LACONA VII International Conference, "Lasers in the Conservation of Artworks" CY - Madrid, Spain DA - 2007-09-17 PY - 2008 SN - 978-0-415-47596-9 SP - 345 EP - 351 PB - Taylor & Francis AN - OPUS4-17974 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -