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Detection of Alteration Products in Artworks by Non-Destructive Spectroscopic Analysis

Published online by Cambridge University Press:  26 February 2011

M. Bacci ,
S. Baronti ,
A. Casini ,
P. Castagna ,
R. Linari ,
A. Orlando ,
M. Picollo  and
B. Radicati
M. Bacci
Affiliation:
Istituto di Ricerca sulle Onde Elettromagnetiche - CNR, Florence, Italy
S. Baronti
Affiliation:
Istituto di Ricerca sulle Onde Elettromagnetiche - CNR, Florence, Italy
A. Casini
Affiliation:
Istituto di Ricerca sulle Onde Elettromagnetiche - CNR, Florence, Italy
P. Castagna
Affiliation:
Istituto di Ricerca sulle Onde Elettromagnetiche - CNR, Florence, Italy
R. Linari
Affiliation:
Istituto di Ricerca sulle Onde Elettromagnetiche - CNR, Florence, Italy
A. Orlando
Affiliation:
Istituto di Ricerca sulle Onde Elettromagnetiche - CNR, Florence, Italy
M. Picollo
Affiliation:
Istituto di Ricerca sulle Onde Elettromagnetiche - CNR, Florence, Italy
B. Radicati
Affiliation:
Istituto di Ricerca sulle Onde Elettromagnetiche - CNR, Florence, Italy
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Abstract

The use of fiber optics reflectance spectroscopy (FORS) in the near IR is proposed as a simple, fast, and totally non destructive method to detect alteration products. Indeed gypsum and calcium oxalates show very distinctive absorption bands in the near IR due to theovertones and/or combination bands of the 0-H and C-O vibrational modes. The present communication reports the results obtained on laboratory samples and on actual artworks.

Moreover it will be stressed that the FORS procedure, being quite safe for artworks, allows to record a large number of spectra in order to give the possibility of building up a map of the alterations and to perform a statistical analysis of the data.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 352: Symposium – Materials Issues in Art and Archaeology IV , 1995 , 153
Copyright
Copyright © Materials Research Society 1995

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References

REFERENCES

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