Insights on the Side Panels of the <Emphasis Type="Italic">Franciscan Triptych</Emphasis> by Fra Angelico Using Terahertz Time-Domain Imaging (THz-TDI) |
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| Authors: | Corinna L Koch Dandolo Marcello Picollo Costanza Cucci Marina Ginanni Elena Prandi Magnolia Scudieri Peter Uhd Jepsen |
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| Affiliation: | 1.DTU Fotonik – Department of Photonics Engineering,Technical University of Denmark,Kongens Lyngby,Denmark;2.Centro de Investigaciones en óptica A.C.,León,México;3.IFAC-CNR,Sesto Fiorentino,Italy;4.Restoration Laboratories and Office of Le Gallerie degli Uffizi,Firenze,Italy;5.Polo Museale Regionale della Toscana,Firenze,Italy |
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| Abstract: | The side panels of the Franciscan Triptych (St. Jerome, St. John the Baptist, and the Archangel Gabriel and St. Francis, St. Onofrio, and the Virgin Annunciate, by Fra Angelico, before 1429) were scanned by means of terahertz time-domain imaging (THz-TDI). THz analysis supplied information on the stratigraphy of the panel paintings and the associated construction, “gessoing” and gilding techniques. Furthermore, THz-TDI provided information regarding the location of restoration materials within the painting stratigraphy on St. Jerome, St. John the Baptist, and the Archangel Gabriel, as well as on the extension and nature of subsurface cracks in the panel painting of St. Francis, St. Onofrio, and the Virgin Annunciate. |
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