Laser cleaning of stone by different laser pulse duration and wavelength |
| |
| Authors: | S. Siano M. Giamello L. Bartoli A. Mencaglia V. Parfenov R. Salimbeni |
| |
| Affiliation: | (1) Istituto di Fisica Applicata, Consiglio Nazionale delle Ricerche, Sesto Fiorentino, Italy;(2) Dipartimento di Scienze Ambientali, Universita degli Studi di Siena, Siena, Italy;(3) St. Petersburg State Electrotechnical University, St. Petersburg, Russia |
| |
| Abstract: | The present work focuses on the main phenomenological features of stone cleaning by lasers. These are the removal rate, cleaning degree, and chromatic appearance of the treated surface associated with different conservation problems and laser parameters. A set of three different outdoor stone conservation problems were investigated here. The measurement of the ablation rates were carried out on encrusted stone artifacts and two sets of standards in order to derive general behaviors through repeatable measurements. The analysis of the irradiation tests provided quantification of the different efficiencies, cleaning degree, and chromatic appearances associated with the fundamental harmonic of Q-switching, long Q-switching, and short free-running Nd:YAG lasers (1064 nm), as well as with the second harmonic of Q-switching sources (532 nm). |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
