On the initiative of Dr Michela Palazzo, the Director of the Museo del Cenacolo Vinciano and Dr Fabio Aramini of the Istituto Centrale per il Restauro, and the intensive commitment of Dr Lorenza Dall'Aglio of the Museo del Cenacolo Vinciano and Dr. Kaori Fukunaga from the National Institute of Information and Communications Technology (NICT) in Japan, one of the most famous murals in the world, the Last Supper by Leonardo Da Vinci, could be examined using millimeter and terahertz waves.
Also on board: the team of Dr. Fabian Friederich from the Fraunhofer Institute for Industrial Mathematics ITWM in Germany. NICT leads the use of terahertz measurement in cultural heritage and has investigated various museum objects as a collaboration with the Istituto di Fisica Applicata »Nello Carrara« of the National Research Council (IFAC-CNR).
Millimeter Waves Increase Penetration Depth
In addition, the millimeter wave technology of the Fraunhofer ITWM enables the observation of structural features below the wall painting due to the greater penetration depth. The use of these nondestructive technologies, for example, provides information on layer structure of the wall itself in addition to previous works by taking small samples for cross-section observation.
Fraunhofer ITWM and 19 other Fraunhofer Institutes are currently involved in the research project »Cultural heritage at risk – effects of climate change, opportunities of digitization«, which is funded by the Fraunhofer-Gesellschaft with 1.9 million euros.