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THz radiation is strongly absorbed, as well as reflected, by water. This spectral feature can be exploited to detect the presence of water under the surface of mural paintings and mosaics. In this study we report on the capability of our 3D reflective THz imaging system to detect water under samples simulating a fresco or a mosaic.
One of the main objectives of the THz-ARTE project is the construction of a portable THz imaging scanner, specifically designed to investigate mural paintings. Making of such a device and its use on an artwork will be presented.
The Terahertz imaging technique was applied to observe the preparation layer of wall paintings. The experimental results revealed the effect of the particle size of fillers and the possibility of internal interface observation by the THz pulse-echo imaging.
A portable THz imaging system for the study of wall paintings is currently under construction in the framework of the THz-ARTE project. The device design and operating principle will be presented together with preliminary results on test samples.
Two Free Electron Laser sources have been developed at ENEA-Frascati and are available for a variety of applications: a Compact Free Electron Laser (C-FEL) that provides coherent radiation in the frequency range between 90 and 150 GHz, and a second source, FEL-CATS, which utilizes a peculiar radio-frequency structure to generate coherent emission in the range 0.4 to 0.7 THz without the use of an optical...
The project THz-ARTE ldquoTerahertz Advanced Research TEchniques for non-invasive analysis in art conservationrdquo has recently been selected in the area of Technologies applied to Cultural Heritage in the framework of the Agreement between the Government of Italy and the Government of Japan on cooperation in Science and Technology.
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