Characterization of laser-generated microparticles by means of a dust monitor and SEM imaging
- Nanosecond laser (1064 nm wavelength) cleaning of artificially soiled paper as a model sample simulating a real-world artwork was performed. During the cleaning process, the ejection of particles was monitored in situ by means of a dust monitor (8 size classes, ranging from 0.3 µm to >2 µm) and ex situ using a mini-cascade impactor (MKI, 5 stages). The cleaning result was analyzed by scanning electron microscopy (SEM) considering possible laser-induced damages to the substrate. Size distributions of emitted particles were measured depending on the processing parameters: laser fluence, F, and pulse number per spot, N. High numbers of large (>2 µm) particles were collected by the mini-cascade impactor indicating a gas dynamical liftoff process. Obviously, these particles were not affected by the laser-matter interaction. The different methods (SEM, MKI, and dust monitor) are compared with respect to their usefulness for a proper interpretation of the cleaning results.
Autor*innen: | R. Wurster, Simone Pentzien, Andrea Conradi, Jörg KrügerORCiD |
---|---|
Dokumenttyp: | Zeitschriftenartikel |
Veröffentlichungsform: | Verlagsliteratur |
Sprache: | Englisch |
Titel des übergeordneten Werkes (Englisch): | Laser chemistry |
Jahr der Erstveröffentlichung: | 2006 |
Verlag: | Harwood Academic Publ. |
Verlagsort: | London |
Jahrgang/Band: | 2006 |
Ausgabe/Heft: | Article ID 31862 |
Erste Seite: | 1 |
Letzte Seite: | 5(?) |
DOI: | 10.1155/2006/31862 |
ISSN: | 0278-6273 |
ISSN: | 1476-3516 |
Verfügbarkeit des Dokuments: | Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access") |
Bibliotheksstandort: | Sonderstandort: Publica-Schrank |
Datum der Freischaltung: | 19.02.2016 |
Referierte Publikation: | Nein |