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Exploring the viability of combined laser-induced breakdown spectroscopy and Raman spectroscopy for stratigraphic analysis of murals containing isomeric pigments: a case study on realgar and orpiment.
- Source :
-
Heritage Science . 7/25/2024, Vol. 12 Issue 1, p1-13. 13p. - Publication Year :
- 2024
-
Abstract
- A novel combined measurements techniques has been designed in this work, enabling the acquisition of laser-induced breakdown spectroscopy (LIBS) and Raman spectral signals at the same point on a sample. The application of this combined technique to the analysis of multi-layered mock-up blocks painted with orpiment and realgar pigments has yielded significant insights. By correlating variations in the emission line intensity of characteristic elements within the LIBS spectra with depth-specific Raman spectra, the number of laser pulses that penetrated the pigment layers has been accurately determined, thereby establishing a method to measure layer thickness. Finally, the technique wasto analysis the actual mural fragment from Mogao Cave 196, determining the types of pigment and the thickness of the pigment layers. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 20507445
- Volume :
- 12
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Heritage Science
- Publication Type :
- Academic Journal
- Accession number :
- 178677266
- Full Text :
- https://doi.org/10.1186/s40494-024-01376-1