Field microscopy applied to the understanding of the technology and conservation of wall paintings

E. Geddes Da Filicaia, G. Verri, Y. Goren

Research output: Contribution to journalConference articlepeer-review

Abstract

Wall paintings are complex, heterogeneous structures open to the environment and composed of multiple layers. Additionally, they are frequently located in remote areas, where basic infrastructure is not available. The causes and mechanisms involved in the complex deterioration phenomena, which wall paintings are often subjected to, are therefore difficult to identify and address. Developments have been made to target conservation issues in situ with non-invasive and portable investigative techniques, however standard practice to investigate stratigraphic information still involves analysing samples in a laboratory setting. In remote sites this approach is inefficient, as in many cases decisions on treatment cannot wait for the results of the laboratory examinations. This may have serious consequences on the integrity of the painting. This paper describes adaptation of classical methods for the in-situ preparation of cross-sections, thin-sections and dispersions utilising custom-made equipment. The methodology allows for a direct examination of samples in-situ, using a portable polarizing microscope (field microscopy). The system was adapted and developed to not only capture incident and transmitted light, but also to capture multispectral images (infrared-, ultraviolet-reflected and ultraviolet- and visible-induced luminescence), using external radiation sources. Comparisons with benchtop equipment are made to demonstrate the efficacy and usefulness of the process.

Original languageAmerican English
Article number012062
JournalIOP Conference Series: Materials Science and Engineering
Volume364
Issue number1
DOIs
StatePublished - 18 Jun 2018
EventFlorence Heri-Tech 2018 - The Future of Heritage Science and Technologies - Florence, Italy
Duration: 16 May 201818 May 2018

All Science Journal Classification (ASJC) codes

  • General Engineering
  • General Materials Science

Fingerprint

Dive into the research topics of 'Field microscopy applied to the understanding of the technology and conservation of wall paintings'. Together they form a unique fingerprint.

Cite this