| Autor: |
Nimmrichter, Johann, Kautek, Wolfgang, Schreiner, Manfred, Barcikowski, St., Bärsch, N., Ostendorf, A. |
| Zdroj: |
Lasers in the Conservation of Artworks (9783540721291); 2008, p631-640, 10p |
| Abstrakt: |
Nano-particles are released from the material during short-pulse and ultrashort-pulse laser ablation. It is well known that nano-particles can cause adverse health effects. Therefore, the aim of the presented study is to assess the risks caused by nano-particulate emission during nanosecond (ns) and femtosecond (fs) laser cleaning. The size distribution of particulate matter (PM) in the fumes which emerge during Nd:YAG and Ti:Sapphire laser ablation is characterized using an automatic 12-level low pressure cascade impactor. It is shown that the mean diameter and the dispersion of the PM strongly depend on the laser parameters (fluence, pulse energy) and material (gypsum, graphite and paper). [ABSTRACT FROM AUTHOR] |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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