Results 11 to 20 of about 3,494,768 (298)

Analysis of Oval Paintings Attributed to the Painter Leandro Joaquim Using XRF and MA-XRF

Semina: Ciências Exatas e Tecnológicas
Three paintings attributed to the Brazilian artist Leandro Joaquim (1738–1798) were analyzed in situ using X-ray fluorescence (XRF) and macro X-ray fluorescence scanning (MA-XRF) techniques.
Ana Leticia Castro de Oliveira, Renato Pereira de Freitas, André Rocha Pimenta , Valter de Souza Felix, Monica Grôppo Parma, Isolda Maria de Castro Mendes, Marcelino José dos Anjos   +6 more
doaj   +4 more sources

Characterisation of corrosion products on copper-based artefacts: potential of MA-XRF measurementsties of MA-XRF measurement [PDF]

ACTA IMEKO, 2021
The use of macro-X-ray fluorescence (MA-XRF) scanners is now widespread in cultural heritage applications. However, its use for the characterisation of metallic works of art is still limited. In this study, a novel portable MA-XRF scanner prototype was tested on artificially corroded copper samples to assess its analytical capabilities on corroded ...
Di Francia, Elisabetta, Grassini, Sabrina, Gigante, Giovanni Ettore, Ridolfi, Stefano, Barcellos Lins, Sergio Augusto   +4 more
core   +6 more sources

Revealing the Materials, Painting Techniques, and State of Preservation of a Heavily Altered Early 19th Century Greek Icon through MA-XRF

Heritage, 2023
Macroscopic X-ray fluorescence analysis (MA-XRF) is a non-destructive analytical technique that allows for the rapid and thorough investigation of paintings; therefore, it is nowadays increasingly involved in relevant studies.
Georgios P. Mastrotheodoros, Anastasios Asvestas, Theofanis Gerodimos, Dimitrios F. Anagnostopoulos   +3 more
doaj   +3 more sources

XRF Imaging (MA-XRF) as a Valuable Method in the Analysis of Nonhomogeneous Structures of Grisaille Paint Layers

Heritage, 2021
Stained glass paint layers made with vitreous paints can be a challenging subject for analyses. Their heterogenic structure requires proper experimental methodology in order to obtain valuable data.
Edyta Bernady, Maria Goryl, Małgorzata Walczak   +2 more
doaj   +3 more sources

Non-invasive analysis of heritage textiles with MA-XRF mapping—exploring the possibilities. The study of Bishop Jacques de Vitry's mitres and fragile medieval reliquary purses from Namur (Belgium)

Heritage Science, 2023
This manuscript explores the potential of macro-X-ray fluorescence (MA-XRF) for the non-invasive analysis of heritage textiles. XRF, especially with the portable instruments, is a well-known technique for the non-destructive examination of various ...
Ina Vanden Berghe, Marina Van Bos, Maaike Vandorpe, Alexia Coudray   +3 more
doaj   +2 more sources

MA‐XRF analysis of ancient silver coins minted in southern Italy

X-Ray Spectrometry, 2023
Abstract At the Museo Campano (Capua, Italy), eight double‐relief silver coins belonging to southern Italian poleis and dated between the end of the 5th century and the beginning of the 3rd century BC were analysed.
Jessica Brocchieri, Rosa Vitale, Carlo Sabbarese   +2 more
openaire   +3 more sources

Application of mobile-macroscale scanning X-ray fluorescence (mobile-MA-XRF) imaging in paleontology: analyses of vertebrate fossil specimens from Messel conserved in different solid and liquid media [PDF]

Journal of Analytical Atomic Spectrometry
Cutting-edge analytical instrumentation is increasingly being developed and applied to the analysis of fossils. X-ray fluorescence (XRF) imaging spectroscopy is a powerful tool to resolve the elemental chemistry of fossil specimens.
Colombo, Marco, Rossi, Valentina, Ensinger, Wolfgang, Lehmann, Thomas   +3 more
core   +3 more sources

Development of a Macro X-ray Fluorescence (MA-XRF) Scanner System for In Situ Analysis of Paintings That Operates in a Static or Dynamic Method

Quantum Beam Science
This work presents the development of a macro X-ray fluorescence (MA-XRF) scanner system for in situ analysis of paintings. The instrument was developed to operate using continuous acquisitions, where the module with the X-ray tube and detector moves at ...
Renato P. de Freitas, Miguel A. de Oliveira, Matheus B. de Oliveira, André R. Pimenta, Valter de S. Felix, Marcelo O. Pereira, Elicardo A. S. Gonçalves, João V. L. Grechi, Fabricio L. e. Silva, Cristiano de S. Carvalho, Jonas G. R. S. Ataliba, Leandro O. Pereira, Lucas C. Muniz, Robson B. dos Santos, Vitor da S. Vital   +14 more
doaj   +2 more sources

On the study of paintings' stratigraphy by fs-LIBS and MA-XRF techniques

Journal of Analytical Atomic Spectrometry
fs-LIBS of successive layers of pigments.
E. Kechaoglou, K. A. Agrafioti, G. P. Mastrotheodoros, D. F. Anagnostopoulos, C. Kosmidis   +4 more
openaire   +2 more sources

The Power of Combining MA-XRF, Infrared Reflectography and Digital Microscopy to Unveil the Production of the 16th Century Illuminated Charter of Évora: What May Be Hidden under a Painted Surface?

Heritage, 2022
In recent decades, many works have been devoted to the study of materials and painting techniques used to produce illuminated manuscripts. If the analyses were once largely invasive, the approach has become increasingly more in situ and non-invasive over
Catarina Miguel, Silvia Bottura-Scardina, Carlo Bottaini, Sara Valadas, Antonio Candeias, Francisco Bilou   +5 more
doaj   +2 more sources