Publication Date:
2001
abstract:
A methodology for the use of lasers in the restoration of the Gate of Paradise, a gilded bronze
artwork by L. Ghiberti, was evaluated theoretically and experimentally. Preliminary characterization of the
materials to be laser-cleaned made it possible to estimate the thermal regimes involved and to model the ablation
process. Calculations aimed at controlling unwanted heating of the gold film were also developed before
laser-cleaning tests on large areas were carried out. Finally, the cleaning tests were critically evaluated by
means of instrumental inspection. The practicability of the laser approach, either as a preliminary to gentle
chemical cleaning involving lower concentrations of chemical agents and shorter exposure times or as a standalone
treatment, was demonstrated.
artwork by L. Ghiberti, was evaluated theoretically and experimentally. Preliminary characterization of the
materials to be laser-cleaned made it possible to estimate the thermal regimes involved and to model the ablation
process. Calculations aimed at controlling unwanted heating of the gold film were also developed before
laser-cleaning tests on large areas were carried out. Finally, the cleaning tests were critically evaluated by
means of instrumental inspection. The practicability of the laser approach, either as a preliminary to gentle
chemical cleaning involving lower concentrations of chemical agents and shorter exposure times or as a standalone
treatment, was demonstrated.
Iris type:
01.01 Articolo in rivista
List of contributors:
Siano, Salvatore; Salimbeni, Renzo
Published in: