by M Barrera, C Escudero, M.D. Ynsa and Aurelio Climent-Font
Abstract:
The aim of this research has been to performa complementary study using several non destructive analytical techniques such as PIXE (Proton Induced X-ray Emission) and RBS (Rutherford Backscattering Spectrometry) along with SEM (Scanning Electron Microscopy) in order to characterize materials, manufacture techniques and corrosion compounds and to check the suitable cleaning in a cross made of gilded copper belonging to Vado-Cervera church (Palencia, Spain). This research includes a comparative study of traditional cleaning methods with laser cleaning. The results show that Q-switched Nd:YAG laser a 1064 nm, at the fluence of 0.130 J/cm2 and with a pulse duration of 6 ns is not satisfactory for our purposes because of a increasing the diffusion of the surface gold towards the support due to the thermal effect generated by transient heating of the metal substrate, which occurs during the irradiation of cleaned areas
Reference:
M Barrera, C Escudero, M.D. Ynsa and Aurelio Climent-Font, “Application of Ion Beam Analysis (IBA) techniques for the assessment of laser cleaning on gilded copper”, In Lasers in the Conservation of Artworks – Proceedings of the International Conference LACONA 7, pp. 323–327.
Bibtex Entry:
@inproceedings{barrera_application_2007,
title = {Application of {Ion} {Beam} {Analysis} ({IBA}) techniques for the assessment of laser cleaning on gilded copper},
doi = {10.1201/9780203882085.ch51},
abstract = {The aim of this research has been to performa complementary study using several non destructive
analytical techniques such as PIXE (Proton Induced X-ray Emission) and RBS (Rutherford Backscattering
Spectrometry) along with SEM (Scanning Electron Microscopy) in order to characterize materials, manufacture
techniques and corrosion compounds and to check the suitable cleaning in a cross made of gilded copper
belonging to Vado-Cervera church (Palencia, Spain). This research includes a comparative study of traditional
cleaning methods with laser cleaning. The results show that Q-switched Nd:YAG laser a 1064 nm, at the fluence
of 0.130 J/cm2 and with a pulse duration of 6 ns is not satisfactory for our purposes because of a increasing the
diffusion of the surface gold towards the support due to the thermal effect generated by transient heating of the
metal substrate, which occurs during the irradiation of cleaned areas},
booktitle = {Lasers in the {Conservation} of {Artworks} - {Proceedings} of the {International} {Conference} {LACONA} 7},
author = {Barrera, M and Escudero, C and Ynsa, M.D. and Climent-Font, Aurelio},
month = nov,
year = {2007},
pages = {323--327},
file = {SCOPUS Snapshot:E:\cmam_papers\files\1545\display.html:text/html;SCOPUS Snapshot:E:\Usuarios\Administrator\Zotero\storage\D3ZX9EU4\display.html:text/html;Snapshot:E:\cmam_papers\files\845\amp.html:text/html;Snapshot:E:\Usuarios\Administrator\Zotero\storage\NYNF33X4\amp.html:text/html},
}