Photophysics of Artist's Pigments
Photophysics, among others, is a noninvasive analytical technique useful for the study of artefacts in the cultural heritage field.
Proceedings
9762 papers found
Roberto Cesareo, Stefano Ridolfi, Antonio Brunetti, Ricardo T. Lopes, Giovanni E. Gigante
3D Imaging of Paintings by Scanning with a Portable EDXRF-Device
3D map of chemical elements distribution from energy dispersive X-ray fluorescence (EDXRF) analysis would be a perfect conclusion to study in detail any type of artifact. This map can be easily achieved by using synchrotron light as source of radiation, and micro-optics both at the source and at the detector. In such a manner a micro-voxel is irradiated and detected, which can be at any depth with respect to the surface of the artifact. This method is effective but needs a synchrotron; therefore its use in archaeometry is greatly limited. An alternative method is proposed in the present...
M. Amati, A. Gianoncelli, W. Jark, A. Lausi, L. Mancini, L. Olivi, J. Plaisier, B. Rossi, M. Sibilia, N. Sodini, L. Vaccari, F. Zanini
The Cultural Heritage Platform at Elettra
The use of synchrotron radiation for the analysis of samples of historical and artistic importance has been increasing over the past years, and experiments related to the study of our cultural heritage (CH) have been routinely performed at many beamlines of Elettra, the Italian synchrotron radiation facility. The laboratory now offers a platform dedicated to CH researchers in order to support both the proposal application phase and the different steps of the experiment, from sample preparation to data analysis.
Roberto Cesareo, Angel Bustamante, Régulo Franco Jordán, Arabel Fernandez, Soraia Azeredo, Ricardo T. Lopes, Walter Alva, Luis Chero, Antonio Brunetti, Giovanni E. Gigante, Stefano Ridolfi
Welding Brazing and Soldering of Gold and Silver by the Moche Tombs "Señor de Sipán" and "Señora de Cao"
About 200 gold and silver funerary ornaments from the Moche tombs "Señor de Sipán" and "Señora de Cao" were analyzed to determine their metallurgic characteristics. Of particular interest was the question about the gold-silver joining process. To this aim, following methods were employed, all based on the use of X-rays.
Cristina Corti-Fragoso, Marta Cicardi, Ornella Salvadori, Francesca Piqué
Biodeterioration of wall painting at the UNESCO site of Varallo: pink patina
Chapel 11 at the Sacro Monte di Varallo, a UNESCO World Heritage site, is decorated with wall paintings and life-size statues. The wall paintings date from 1591 but were heavily repainted at the end of 19th century and again in 1955. Visual examination of the surface revealed the signs of possible microbiological growth (MBG). In situ investigations with portable microscopy (using visible and ultraviolet radiations) and with Adenosine Triphosphates (ATP) measurements were carried out to determine the presence of MBG and the level of their activities. Several types of MBG were identified, but...
M. Mongelli, I. Bellagamba, G. Bracco, S. Migliori, A. Perozziello, S. Pierattini, A. Quintiliani, B. Mazzei
3D photogrammetric reconstruction by "Structure from Motion" as a monitoring technique for safety, conservation and improvement of the fruition of cultural heritage
In the last years, with the large growth of new state-of-the-art technologies used in the field of cultural heritage, it's increasingly necessary to promote non-invasive and non-destructive techniques which are "sensitive" to the nature of the site in which they are applied, respecting the Italian historical artistic heritage. Within the COBRA project [1], ENEA developed a new low-cost and non-destructive survey technique by 3D Photogrammetric reconstruction, using the Structure from Motion (SfM) method, for innovative applications in the field of cultural heritage [2]. This paper shows an...
Amir. M. Alani, Luca Bianchini Ciampoli, Fabio Tosti, Maria Giulia Brancadoro, Daniele Pirrone, Andrea Benedetto
Health Monitoring of a Matured Tree Using Ground Penetrating Radar – Investigation of the Tree Root System and Soil Interaction
In this study, a demonstration of the ground penetrating radar (GPR) potential in the health monitoring of a matured tree has been given. The main objectives of the research were to provide an effective mapping of the tree roots as well as reliable simulation scenarios representing a variety of possible internal defects in terms of shape and formation. To these purposes, the soil around a 70-year-old fir tree, with a trunk circumference of 3.40 m and an average radius of 0.55 m, was investigated. A ground-coupled multi-frequency GPR system equipped with 600 MHz and 1600 MHz central frequency...
Angela Diceglie, L.M.M. Lorusso
Non-destructive Techniques for the Knowledge and Conservation of Abbey-Castle at Santo Stefano, Monopoli (Bari).
In 2013, the University of Bari and the Center for Aerial Photography Laboratory Consortium in Bari, under the scientific direction of Angela Diceglie, launched an interdisciplinary study entitled "The Territorial Context and the Abbey-Castle of St. Stephen of Monopoli (BA): Knowledge, Conservation and Development, which aims to ensure the preservation and survival of the site while respecting its identity and uniqueness. The project is divided into a plan of awareness, conservation and development. Knowledge plan has been developing through a campaign of historical-documentary...
Lorenzo Dinia, Fabio Mangini, Marco Muzi, Fabrizio Frezza
Fiber Bragg Grating Multifunctional pH Sensor for Monitoring the rain in Cultural Heritage
A new era of pollution requires an important focus on the conservation of archaeological sites and monuments. During the last decades, there has been a rising interest in the development of sensors based on optical fibers for several applications, including chemical sensing [1]. An innovative new fiber optic sensor that combines Fiber Bragg Gratings (FBG) coated with pH responsive polymers for monitoring the pH of the rains on critical and prestigious monuments is proposed. In this study the setup arrangement of the optical sensor is modeled by our own FEM code. Monitoring the pH of the...
A.Calia, D. Colangiuli, M. Lettieri, M. Masieri
Monitoring long run performances of multifunctional coatings for environmental protection of stone building surface
In this study, multifunctional TiO2 NPs/fluoropolymer coatings with self-cleaning and hydrophobic properties applied to a calcareous stone are investigated for long run performances in outdoor conditions. The coated samples were exposed over one year to an urban environment and their physical and photocatalytic properties were monitored. The study provides better insights on the real performances of nanostructured TiO2-based coatings for stones in buildings.