Code: ThOF	Time Slot/Poster Number: 2:00 - 2:30 pm	Session: Art & Archeology II
Raman Spectroscopy in Collections Research: Beyond Pigment Identification
Karen Trentelman; Catherine Patterson
Getty Conservation Institute, Los Angeles, CA
View Abstract PDF
Summary
Providing non-destructive in situ pigment identification, Raman microscopy is a nearly ideal tool for the analysis of works of art. Although Raman microscopy can give a wealth of information, it has limitations, the most notable being interference from fluorescent species, lack of elemental information, and the inability to probe subsurface layers. Furthermore, being a point analysis technique, the time required to map large areas is prohibitively long. Examples illustrating how these shortcomings can be overcome – or even used to advantage – through the use of complementary techniques such as XRF, XRD, FTIR, ICP-MS and multispectral imaging will be presented.

Code: ThOF	Time Slot/Poster Number: 2:30 - 3:00 pm	Session: Art & Archeology II
Raman Spectroscopy applied to Cultural Heritage and Works of Art
Jens Stenger; Narayan Khandekar; Katherine Eremin
Harvard Art Museum, Cambridge, MA
View Abstract PDF
Summary
Raman Spectroscopy has emerged in recent years as a powerful tool in the field of analytical chemistry applied to art and cultural heritage objects. This paper presents case studies that use this technique and relate material analyses to art historical questions, the adoption of novel pigments, and authentication. The application of Coherent Anti-Stokes Raman Scattering (CARS) microscopy to the imaging of paint cross sections is discussed.

Code: ThOF	Time Slot/Poster Number: 3:00 - 3:30 pm	Session: Art & Archeology II
On-site Raman analysis of cultural heritage sites: stained glass windows of the Sainte-Chapelle (Paris) and San rock art (South Africa)
Philippe Colomban1; Linda Prinsloo2; Aurélie Tournié1, 2
1Laboratoire de Dynamique Interaction et Réactivité, Paris, France; 2University of Pretoria, Pretoria, South Africa
View Abstract PDF
Summary
We have conducted on-site Raman measurements at two valuable cultural heritage sites namely the stained glass windows of the Sainte-Chapelle Paris and San rock art in South Africa. We illustrate how the Raman signature of the glass makes it possible to distinguish between K- or Na-based silicates and use the Raman scattering intensity of weathered glasses to determine their relative age. Most of the pigments and alterations products previously detected under laboratory conditions on rock paint were identified, thus giving information of both the pigments and conservation state of the paintings.

Code: ThOF	Time Slot/Poster Number: 3:30 - 3:50 pm	Session: Art & Archeology II
Investigation Of Artists’ Working Practice, Surface Texture, And Pigment Color Changes In Traditional Oil Paintings By Raman Spectroscopy
Silvia Centeno; Julie Arslanoglu; Dorothy Mahon; Charlotte Hale
The Metropolitan Museum of Art, New York, NY
View Abstract PDF
Summary
In this paper, the results of several selected case studies undertaken in collaboration with conservators, curators, and conservation scientists will be presented to illustrate and highlight the potential and limitations of Raman spectroscopy to shed light onto artists’ working practice, as well as to characterize deterioration proceses in traditional oil paintings.

Code: ThOF	Time Slot/Poster Number: 3:50 - 4:10 pm	Session: Art & Archeology II
Spectroscopic Studies of Atypically Illuminated Medieval Hebrew Bible in Comparison to a XV Century Western Manuscript
Agnieszka Gruchalska; Anna Rogulska; Grzegorz Rusek; Barbara Lydzba-Kopczynska
Wroclaw University, Wroclaw, Poland
View Abstract PDF
Summary
Raman spectroscopy and Mass Spectrometry analysis were implemented in investigation of palette of pigments and inks found in the atypically illuminated Medieval Tanakh (Hebrew Bible) and the XV century western manuscript. The reported study delivers priceless information on type of religious manuscript that has not been investigated before and is of great importance in understanding of our cultural heritage.