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Proceedings Paper

Ab initio selective UV laser cleaning
Author(s): F. Belloni; G. Buccolieri; Alfredo Castellano; D. Doria; A. Lorusso; Vincenzo Nassisi
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Paper Abstract

We report here the results about the sulphur concentration in ancient stones and its removal after the application of UV laser action. A portable apparatus for energy-dispersive X-ray fluorescence (EDXRF) was utilised to measure the sulphur concentration before and after laser cleansing. After laser application the sulphur concentration decrased to 1.2% w/w whilst the initial value was 2.8% w/w. The laser energy density was about 1 J/cm2 and the efficient shot number was approximately 30 with a rate of 1Hz.

Paper Details

Date Published: 23 March 2005
PDF: 4 pages
Proc. SPIE 5777, XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, (23 March 2005); doi: 10.1117/12.611291
Show Author Affiliations
F. Belloni, INFN (Italy)
Univ. degli Studi di Lecce (Italy)
G. Buccolieri, INFN (Italy)
Univ. degli Studi di Lecce (Italy)
Alfredo Castellano, INFN (Italy)
Univ. degli Studi di Lecce (Italy)
D. Doria, INFN (Italy)
Univ. degli Studi di Lecce (Italy)
A. Lorusso, INFN (Italy)
Univ. degli Studi di Lecce (Italy)
Vincenzo Nassisi, INFN (Italy)
Univ. degli Studi di Lecce (Italy)


Published in SPIE Proceedings Vol. 5777:
XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers
Jarmila Kodymova, Editor(s)

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