Monte Carlo simulation of portable XRF setup: Non-invasive determination of gold leaf thickness in indo-Portuguese panel paintings

Detalhes bibliográficos
Autor(a) principal: Pessanha, Sofia
Data de Publicação: 2019
Outros Autores: Manso, Marta, Antunes, Vanessa, Carvalho, Maria Luisa, Sampaio, J. M.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10362/97648
Resumo: S. Pessanha, M. Manso and V. Antunes also acknowledge FCT for the post-doc grants SFRH/BPD/94234/2013, and SFRH/BPD/103315/2014
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spelling Monte Carlo simulation of portable XRF setup: Non-invasive determination of gold leaf thickness in indo-Portuguese panel paintingsAnalytical ChemistryAtomic and Molecular Physics, and OpticsInstrumentationSpectroscopyS. Pessanha, M. Manso and V. Antunes also acknowledge FCT for the post-doc grants SFRH/BPD/94234/2013, and SFRH/BPD/103315/2014In this work, we present the combined use of in situ X ray Fluorescence spectroscopy and Monte Carlo simulation using PENELOPE code for the completely non-invasive determination of gold leaf thickness in artworks using lead white as mordant. The methodology used is based on the detection of different characteristic lines of Pb in the X ray fluorescence spectra, attenuated trough the gold leaves, and determining the thickness of gilding by comparing their attenuation. Firstly, this methodology was calibrated using model samples of simple stratigraphy, namely pure Au leafs of 1, 2 and 2.5 μm thickness covering a Pb infinitely thick sheet. The modelled X ray setup was then used to study the gilding thickness of three panel paintings belonging to the Museum of Christian Art in Old Goa (India): two paintings, from the 18th century, concerning to the same series but different themes: Our Lady of Sorrows (MoCA1) and Our Lady of Seven Sorrows (MoCA2), and a third painting entitled Monstrance (MoCA3), from the 17th century. These panel paintings were analyzed to understand the differences and similarities between techniques, according to the time/epoch and technique of its manufacture. The obtained values for MoCA2 tend to be slightly lower than for MoCA1, however, the t student test revealed that the differences were not statistically different (p = .37). Regarding the MoCA3 painting, the average thickness was determined to be statistically different (p < .001) and higher than for the other two paintings. These results emphasize the use of different techniques concerning gold leaf beating. In the 17th century painting it was verified the use of a thicker gold leaf while in the group of the 18th century gold leaf was thinner and manufactured with a similar thickness in both paintings. These results are in consonance with the accuracy of leaf beating technology, increasing with the experience acquired during the ages.LIBPhys-UNLRUNPessanha, SofiaManso, MartaAntunes, VanessaCarvalho, Maria LuisaSampaio, J. M.2021-11-04T01:30:37Z2019-06-012019-06-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article6application/pdfhttp://hdl.handle.net/10362/97648eng0584-8547PURE: 15614822https://doi.org/10.1016/j.sab.2019.04.006info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-03-11T04:44:35Zoai:run.unl.pt:10362/97648Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:38:45.855314Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Monte Carlo simulation of portable XRF setup: Non-invasive determination of gold leaf thickness in indo-Portuguese panel paintings
title Monte Carlo simulation of portable XRF setup: Non-invasive determination of gold leaf thickness in indo-Portuguese panel paintings
spellingShingle Monte Carlo simulation of portable XRF setup: Non-invasive determination of gold leaf thickness in indo-Portuguese panel paintings
Pessanha, Sofia
Analytical Chemistry
Atomic and Molecular Physics, and Optics
Instrumentation
Spectroscopy
title_short Monte Carlo simulation of portable XRF setup: Non-invasive determination of gold leaf thickness in indo-Portuguese panel paintings
title_full Monte Carlo simulation of portable XRF setup: Non-invasive determination of gold leaf thickness in indo-Portuguese panel paintings
title_fullStr Monte Carlo simulation of portable XRF setup: Non-invasive determination of gold leaf thickness in indo-Portuguese panel paintings
title_full_unstemmed Monte Carlo simulation of portable XRF setup: Non-invasive determination of gold leaf thickness in indo-Portuguese panel paintings
title_sort Monte Carlo simulation of portable XRF setup: Non-invasive determination of gold leaf thickness in indo-Portuguese panel paintings
author Pessanha, Sofia
author_facet Pessanha, Sofia
Manso, Marta
Antunes, Vanessa
Carvalho, Maria Luisa
Sampaio, J. M.
author_role author
author2 Manso, Marta
Antunes, Vanessa
Carvalho, Maria Luisa
Sampaio, J. M.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv LIBPhys-UNL
RUN
dc.contributor.author.fl_str_mv Pessanha, Sofia
Manso, Marta
Antunes, Vanessa
Carvalho, Maria Luisa
Sampaio, J. M.
dc.subject.por.fl_str_mv Analytical Chemistry
Atomic and Molecular Physics, and Optics
Instrumentation
Spectroscopy
topic Analytical Chemistry
Atomic and Molecular Physics, and Optics
Instrumentation
Spectroscopy
description S. Pessanha, M. Manso and V. Antunes also acknowledge FCT for the post-doc grants SFRH/BPD/94234/2013, and SFRH/BPD/103315/2014
publishDate 2019
dc.date.none.fl_str_mv 2019-06-01
2019-06-01T00:00:00Z
2021-11-04T01:30:37Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10362/97648
url http://hdl.handle.net/10362/97648
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0584-8547
PURE: 15614822
https://doi.org/10.1016/j.sab.2019.04.006
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 6
application/pdf
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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