The DAFNE-Light laboratory offers diagnostic analyzes and the development of innovative investigation technologies for the non-destructive or micro-destructive characterization of the materials constituting the cultural heritage (pigments, binders, consolidants, dyes) and their degradation products, using spectroscopic techniques ( FT-IR, Raman, XRF, absorption X) and imaging (FT-IR, UV, SWIR, multispectral VIS-NIR, SEM). In addition to laboratory instrumentation with conventional sources, the presence of a synchrotron light source from infrared to X-rays allows precise analysis and images on micrometric samples. Along with laboratory instrumentation, portable instrumentation is available to facilitate in-situ measurements and non-destructive investigation methodologies.
Molecular analyses:
- FT-IR Bruker Vertex-70V (Far/Mid/Near Infrared) interferometer
- Tensor (Mid Infrared) interferometer equipped with autosampler module HTS-XT
- FT-IR Bruker Hyperion 3000 infrared microscope with FPA (Focal Plane Array) 64×64 pixel imaging detector
- Micro and macro ATR (Attenuated Total Reflection)
- Micro Raman Jasco NRS-5100 (785nm, 532nm)
- Fluorescence microscopy (355 nm)
Elemental analyses:
- SEM (Scanning Electron Microscope) with microanalysis EDX
Sample preparation:
- Optical microscopy
- Cutter
- Ventilated room
- Preparation of cross-sections embedded in resin
In situ analyses:
- FT-IR spectroscopy: FT-IR, Bruker Alpha-R (350-7000 cm-1)
- i-Raman Plus B&W Tek (laser 785nm)
- Led-induced fluorescence spectroscopy (280 nm, 355 nm, 450 nm)
- UV fluorescence imaging (Camera NIR converted Nikon D750, UV lamp at 365nm filtered 3000mW)
- Multispcetral Imaging (Camera NIR converted Nikon D750, 400-1000 nm con filtri a banda stretta VIS-IR)
- SWIR reflectance camera (Hamamatsu InGaAs Camera C12741-03, 640×512 pixel) 900-1700 nm, halogen lamp 250W
- NIR reflectance (Fotocamera NIR converted Nikon D750, 750-1000 nm filter), halogen lamp 250W
- Macro and micro photography: Nikon D750 and DinoLite portable microscope
The laboratory is part of the R6 Network – Chemical-physical sciences and technologies belonging to the Center of Excellence of the Technological District of Cultural Heritage and Activities (DTC) of the Lazio Region.