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Proceedings Paper

OCT and NMR for non-invasive in-situ monitoring of the vulnerability of rock art monuments
Author(s): Elizabeth Bemand; Martin Bencsik; Haida Liang
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Paper Abstract

This paper will introduce a new application of Optical Coherence Tomography (OCT) to the monitoring of vulnerability of rock art monuments in-situ. The porosity of the host rock is an important factor affecting the susceptibility of rock art monuments to decay. Pore characteristics of rocks are one of the main factors that control the intensity of physical deterioration. OCT has successfully been applied to paintings and archaeological objects, including geological materials, to produce cross sectional images non-invasively. The stack of cross sectional images can be rendered as a volume to visualise the structure in depth over an extended area. Preliminary studies show that it can directly image the pores and subsurface structure to within 500microns of the surface depending on lithology. This study aims to analyse this stack of cross sectional images computationally to enable the description of the pore space distribution which will be compared with spatially resolved NMR porosity measurement for the samples.

Paper Details

Date Published: 6 June 2011
PDF: 8 pages
Proc. SPIE 8084, O3A: Optics for Arts, Architecture, and Archaeology III, 80840H (6 June 2011); doi: 10.1117/12.890084
Show Author Affiliations
Elizabeth Bemand, Nottingham Trent Univ. (United Kingdom)
Martin Bencsik, Nottingham Trent Univ. (United Kingdom)
Haida Liang, Nottingham Trent Univ. (United Kingdom)

Published in SPIE Proceedings Vol. 8084:
O3A: Optics for Arts, Architecture, and Archaeology III
Luca Pezzati; Renzo Salimbeni, Editor(s)

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