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CT Scanning and MATLAB Calculations for Preservation of Coptic Mural Paintings in Historic Egyptian Monasteries
KTH, School of Engineering Sciences (SCI), Applied Physics. Aswan Univ, Fac Archaeol, Aswan, Egypt..
Cairo Univ, Fac Archaeol, Conservat Dept, Cairo 12613, Egypt..
KTH, School of Engineering Sciences (SCI), Applied Physics.ORCID iD: 0000-0001-5678-5298
KTH, School of Engineering Sciences (SCI), Applied Physics.
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2019 (English)In: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 9, article id 3903Article in journal (Refereed) Published
Abstract [en]

Investigations of Coptic mural paintings in historic churches and monasteries demand a deep understanding of the micro structure of the mural painting layers. The main objective of the present study is to study the efficiency of new avenues of computed X-ray tomography (CT Scan) and MATLAB in the analysis of Coptic mural paintings, either in the form of images or videos made to collect information about the physical characteristics of the material structure of the layers of mural paintings. These advanced techniques have been used in the investigation of samples of Coptic mural paintings dating back to the V-VIII century A.D, which have been collected from several locations in the Coptic monasteries in Upper Egypt. The application of CT-scanning is a powerful non-destructive tool for imaging and investigation which can be applied to the preservation of monuments made from many different materials. The second stage of research will be to characterize the materials through analytical techniques including XRD, XRF, EDX and FTIR to confirm the findings of CT scanning and to provide additional information concerning the materials used and their deterioration processes. This paper presents the results of the first pilot study in which CT scan and MATLAB have been utilized in combination for the non-destructive evaluation and investigation of Coptic mural paintings in Upper Egypt. The examinations have been carried out on mural painting samples from three important Coptic monasteries in Upper Egypt: the Qubbat Al Hawa Monastery in Aswan, the Saint Simeon Monastery in Aswan and the Saint Matthew the Potter Monastery in Luxor. This multi-stranded investigation has provided us with important information about the physical structure of the paintings, grains dimensions, grain texture, pore media characterization which include the micro porosity, BET and TPV, surface rendering, and calculation of the points in the surface through calculations completed using MATLAB. CT scanning assisted in the investigation and analyses of image surface details, and helped to visualize hidden micro structures that would otherwise be inaccessible due to over painting.

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NATURE PUBLISHING GROUP , 2019. Vol. 9, article id 3903
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Physical Sciences
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URN: urn:nbn:se:kth:diva-247812DOI: 10.1038/s41598-019-40297-zISI: 000460508600133PubMedID: 30846738Scopus ID: 2-s2.0-85062614465OAI: oai:DiVA.org:kth-247812DiVA, id: diva2:1300903
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QC 20190401

Available from: 2019-04-01 Created: 2019-04-01 Last updated: 2019-04-01Bibliographically approved

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Toprak, MuhammetMuhammed, MamounUheida, Abdusalam

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