X-ray tomography of a soil block: a useful tool for the restoration of archaeological finds

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• 作者：Alessandro Re (1) (2)
  Jacopo Corsi (1) (2)
  Marco Demmelbauer (3) (4)
  Margherita Martini (1)
  Giorgia Mila (1) (2)
  Chiara Ricci (3)
  
  1. Dipartimento di Fisica ; Universit脿 di Torino ; via Pietro Giuria 1 ; 10125 ; Torino ; Italy
  2. Istituto Nazionale di Fisica Nucleare ; Sezione di Torino ; via Pietro Giuria 1 ; 10125 ; Torino ; Italy
  3. Centro Conservazione e Restauro 鈥淟a Venaria Reale鈥? Piazza della Repubblica ; 10078 Venaria Reale ; Torino ; Italy
  4. SUSCOR ; Universit脿 di Torino ; Piazza della Repubblica ; 10078 Venaria Reale ; Torino ; Italy
  
• 关键词：Computed tomography (CT) ; Cultural heritage ; Archaeology ; Soil block ; Restoration
• 刊名：Heritage Science
• 出版年：2015
• 出版时间：December 2015
• 年：2015
• 卷：3
• 期：1
• 全文大小：2,491 KB
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• 刊物主题：Materials Science, general;
• 出版者：BioMed Central
• ISSN：2050-7445

文摘

Introduction X-ray imaging is a very powerful tool which can be exploited in several fields. In the last few years, its use in archaeology has grown consistently. One of the most recent and interesting applications of computed X-ray tomography (CT) is the analysis of soil blocks, coming from excavations, in order to seek for finds of different kinds and materials possibly contained therein. For this purpose, both medical and industrial CT scanners have been employed. In this paper, the application of a CT instrument specifically designed and developed for the analysis of Cultural Heritage materials is presented. We analysed a soil block extracted from a necropolis in the Italian region of Abruzzo and probably dating back to the VI-IV century B.C., which was found to contain a bronze belt. Results Thanks to the versatility of the CT equipment we designed, a complete scan has been obtained in less than four hours and has delivered extremely useful information in a completely non-invasive way. The CT dataset and images allowed a virtual extraction of the find to be performed before the actual stratigraphic recovery that, in this case, was simplified thanks to the merging of the archaeological evidences and with information coming from scientific analyses. The information provided by the tomography consisted in: the distribution, shape and dimensions of fragments composing the artefact; indications about its general conditions; the recognition of repairs done in the past and the presence of different materials (although not precisely identified). Conclusions The use of CT has great potential for the work of both archaeologists and restorers. The indirect extraction of an artefact from an archaeological excavation, which entailed moving a soil block to the laboratory, allowed one to reconstruct almost all its parts and to collect information about materials. CT analysis has been particularly useful for determining both its conditions and its repairs before the actual recovery, thereby facilitating the restoration process. The recovery and conservation of an historical piece like the one presented here can help archaeological and conservation studies, enrich a museum collection and contribute to the dissemination of acquired cultural information. Graphical Abstract X-ray imaging of a soil block from an archaeological excavation and the extracted metal belt.