Results 1 to 10 of about 6,429 (270)

Differential X-Ray Attenuation in MA-XRF Analysis for a Non-invasive Determination of Gilding Thickness [PDF]

open access: yesFrontiers in Chemistry, 2020
When investigating gilded artifacts or works of art, the determination of the gilding thickness plays a significant role in establishing restoration protocols or conservation strategies.
Sergio Augusto Barcellos Lins   +11 more
doaj   +11 more sources

Modular MA-XRF Scanner Development in the Multi-Analytical Characterisation of a 17th Century Azulejo from Portugal [PDF]

open access: yesSensors, 2021
A modular X-ray scanning system was developed, to fill in the gap between portable instruments (with a limited analytical area) and mobile instruments (with large analytical areas, and sometimes bulky and difficult to transport).
Sergio Augusto Barcellos Lins   +9 more
doaj   +12 more sources

Testing the Accuracy of the Calculation of Gold Leaf Thickness by MC Simulations and MA-XRF Scanning [PDF]

open access: yesApplied Sciences, 2020
The use of X-ray fluorescence (XRF) scanning systems has become a common practice in many application sectors. In multistratified and heterogeneous samples, the simple analysis of an XRF spectrum as a response of the entire sample is not reliable, so ...
Sergio Augusto Barcellos Lins   +4 more
doaj   +8 more sources

Large area imaging of forensic evidence with MA-XRF. [PDF]

open access: yesSci Rep, 2017
AbstractThis study introduces the use of macroscopic X-ray fluorescence (MA-XRF) for the detection, classification and imaging of forensic traces over large object areas such as entire pieces of clothing and wall paneling. MA-XRF was sufficiently sensitive and selective to detect human biological traces like blood, semen, saliva, sweat and urine on ...
Langstraat K   +6 more
europepmc   +8 more sources

Layout of ancient Greek papyri through lead-drawn ruling lines revealed by Macro X-Ray Fluorescence Imaging [PDF]

open access: yesScientific Reports, 2023
The use of lead-drawn ruling lines by ancient scribes for the layout of Greek papyrus rolls was known to us only from classical authors and was postulated by a few scholars in modern times.
Francesco P. Romano   +13 more
doaj   +2 more sources

The Role of PIXE and XRF in Heritage Science: The INFN-CHNet LABEC Experience [PDF]

open access: yesApplied Sciences, 2022
Analytical techniques play a fundamental role in heritage science. Among them, Particle Induced X-ray Emission (PIXE) and X-ray Fluorescence (XRF) techniques are widely used in many laboratories for elemental composition analysis.
Leandro Sottili   +18 more
doaj   +3 more sources

Neural network-based classification of X-ray fluorescence spectra of artists’ pigments: an approach leveraging a synthetic dataset created using the fundamental parameters method [PDF]

open access: yesHeritage Science, 2022
X-ray fluorescence (XRF) spectroscopy is an analytical technique used to identify chemical elements that has found widespread use in the cultural heritage sector to characterise artists' materials including the pigments in paintings.
Cerys Jones   +3 more
doaj   +2 more sources

Mapping with Macro X-ray Fluorescence Scanning of Raffaello’s Portrait of Leo X [PDF]

open access: yesHeritage, 2022
Raffaello is renowned as one of the Old Renaissance Masters and his paintings and painting technique are famous for the details and naturality of the characters.
Anna Mazzinghi   +5 more
doaj   +4 more sources

Exploring Manufacturing Process and Degradation Products of Gilt and Painted Leather [PDF]

open access: yesApplied Sciences, 2019
In this work, we studied the manufacturing processes and the conservation state of gilt and painted leather fragments from Palazzo Chigi in Ariccia (Italy) by using different analytical techniques.
Morena Iorio   +8 more
doaj   +3 more sources

Portrait of an Etruscan Athletic Official: A Multi-Analytical Study of a Painted Terracotta Wall Panel

open access: yesHeritage, 2021
The Getty’s Etruscan painted terracotta wall panel, Athletic Official, recently has been speculated to be associated with a Caeretan wall panel depicting a Discobolus based on a shared iconography.
Monica Ganio   +4 more
doaj   +1 more source

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