Multispectral Camera

CARAA has recently acquired a new XpeCAM X01 multispectral camera. This camera equipped with 30 filters covers the region from 360 to 1200 nm and allows to observe “beyond the visible” in the ultraviolet and infra-red regions and to detect restorations, repentances or preparatory drawings. But, it also allows to extract the reflectance spectra of…

Painted parchments by Michel le Nobletz

Physico-chemical Analyzes and Multispectral examinations   The CARAA had the honor to participate with the DRAC Bretagne and Marine Letouzey in a vast study of painted parchments by Michel le Nobletz (named the “mad priest”) kept in the Diocese of Quimper. These parchments dated from the 16th and 17th centuries, some of which were painted…

Stones and Rocks

Semi-precious stones, as well as rocks belong to the mineral world. Again, the role of CARAA is to determine the most efficient methods to scan an object according to its value, size, conservation state and, the sampling opportunities … or the non-invasive possibilities. Choosing the appropriate techniques Understanding a gem or a mineral might be…

Peintures Romaines de la basilique de Tongres

Analyses Physico-chimiques des peintures   Menées durant neuf années, les fouilles de la basilique Notre-Dame de Tongres ont mis au jour une quantité importante de peintures murales fragmentaires. L’étude globale de ces enduits a fait l’objet d’un marché public lancé par l’Agence du Patrimoine de Flandre, attribué au Centre des Peintures Murales Romaines de Soissons.…