Terahertz analysis of stability-reduced and damaged wooden cultural assets

Mr. Cornelius Mach1, Dr. Kirsti Krügener2, Ms. Roksana Jachim2, Prof. Enrique Castro-Camus1, Prof. Wolfgang Viöl2, Prof. Martin Koch1
1Philipps-Universität Marburg, Marburg, Germany. 2Hochschule für angewandte Wissenschaft und Kunst Hildesheim/Holzminden/Göttingen, Hildesheim, Germany


Wooden cultural assets are exposed to physical, chemical and biological interactions that can damage and reduce the stability of the wood structure. Some of these damages are caused primarily by biological organisms such as fungi and wood-destroying insects. Terahertz spectroscopy allows non-destructive evaluation of the sub-surface wood of such objects without contact to the, often, delicate surfaces.