PIXE (particle induced X-ray emission): A non-destructive analysis method adapted to the thin decorative coatings of antique ceramics

Leon, Yoanna; Sciau, Philippe; Bouquillon, Anne; Pichon, Laurent; Parseval, Philippe de

doi:10.1016/j.nimb.2012.09.010

Cited by 10 publications

(5 citation statements)

References 22 publications

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“…The analysis of the elemental compositions of bodies and slips performed on a wide panel of south-Gallic and Italic samples conrms the previous results and conclusions obtained on a smaller corpus. 19 Both for Italic and south-Gallic productions, the slip (about 20 mm thick) was obtained from non-calcareous clay (CaO > 2.5% in wt) while in two cases calcareous clay was used to shape the body. All sigillata slips are characterized by a signicant rate of iron (8-12% in wt) and potassium (5-10% in wt).…”

Section: Resultsmentioning

confidence: 99%

Evolution of terra sigillata technology from Italy to Gaul through a multi-technique approach

Leon

Sciau

Passelac

et al. 2015

J. Anal. At. Spectrom.

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International audienceTo understand how the terra sigillata technology was transferred from Italy to Gaul, a large corpus of samples from various worskshop was studied by standard laboratory techniques (Raman spectroscopy, SEM, electron microprobe and colorimetry). Based on these results, a few representative samples were selected and investigated by synchrotron radiation at ALS on the 12.3.2 microdiffraction beamline. The beamline is very adapted to the crystallographic study of thin layers and allows us to determine precisely the mineral composition of the sigillata slips. The set of findings revealed significant differences between the Italic and Gallic slips, which suggest a modification in the manufacturing process. The transfer of the sigillata technique in Gaul is associated to an increase of the firing temperatures due to the use of more refractory clay. This change has no significant influence on their esthetic appearance (brilliance and color) but modify their mechanical properties, resulting in a stronger resistance for the Gallic slips. The implication of these results in archeological context is discussed. In particular, we will try to propose assumptions on the reason of the change in the manufacturing process

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Section: Resultsmentioning

confidence: 99%

Evolution of terra sigillata technology from Italy to Gaul through a multi-technique approach

Leon

Sciau

Passelac

et al. 2015

J. Anal. At. Spectrom.

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“…PIXE has great advantages in trace elemental concentration determinations compared to SEM, which only enables compositional determination of major and minor elemental concentrations. In addition to great analytical accuracy, PIXE's advantage is that it can be performed non-destructively on an artefact, yet this also has disadvantages particularly in its application to ceramic materials (see Rye & Duerden 1982;Grave et al 2005;Leon et al 2012).…”

Section: Methodsmentioning

confidence: 99%

“…PIXE is a bulk method which excludes the possibility to examine the heterogeneity of the ceramic fabric, technological aspects apart from bulk composition and, crucially, elemental analysis of the ceramic body (for a PIXE application to analyse the coating and ceramic fabric separately, see Leon et al 2012). Surface measurements and inhomogenized samples also bear a risk of surface contamination and burial condition effects (see Rye & Duerden 1982;Schwedt et al 2004).…”

Section: Methodsmentioning

confidence: 99%

Redwares From Gubbacka’s Medieval Village: Regional and Inter-Regional Views on Ceramic Networks and Technology (Sem-Eds)

Holmqvist¹,

Väisänen²,

Koivisto³

2014

Estonian J. Archaeol.

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The medieval village site of Gubbacka is situated in the today's Vantaa, Finland. Archaeological investigations were conducted at the site in 2002-2003 and 2008-2010. The aim of this paper is to explore the social and trade contacts and networks the rural inhabitants of Gubbacka had within the Baltic Sea region. In order to examine how these relationships are reflected in the ceramic materials from the site, redware sherds were sampled for micro-structural and compositional characterization by a scanning electron microscope with an energy dispersive spectrometer (SEM-EDS) to study their provenance and technological properties. In addition, redwares from a nearby site Mankby and Tallinn were included in this study as regional and inter-regional parallels to examine possible shared origins of the pots and technological applications in redware manufacture. Redware is a very common archaeological find material in late medieval contexts, but rather difficult to investigate: the products of the different north European manufacturing centres are practically impossible to distinguish with the naked eye, and even the dating of redware finds is problematic. Hence, this study aims to offer new perspectives for the study of redwares, their technologies and distribution networks in northern Europe.

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“…These techniques, coupled with induced X-ray emission (PIXE), characterize the layers composing the sample, evaluating the energy distribution of the backscattered particles, which depends on the nature of the elements composing the layers and the layers' thickness [19][20][21][22][23]. Additionally, as the volume of interaction of the particle depends on the particle energy, a variation of this energy (differential PIXE) allows for discrimination of the composition at different depths of the sample [24][25][26][27]. The problem with the application of these techniques is that they both require access to a particle accelerator, which is not feasible for many laboratories.…”

Section: Introductionmentioning

confidence: 99%

Angle-Dependent XRF Analyses: Pros and Cons of a Novel Technique in the Field of Cultural Heritage

Orsilli,

Galli

2024

Sustainability

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In the cultural heritage field, non-invasive analyses are becoming more important as they avoid any sampling, allowing in situ measurements to be performed. XRF is one of the most common among those techniques, as it allows elemental speciation of the sample with a range that goes from F to U. However, the main limitation of this technique on cultural heritage objects is due to their intrinsic inhomogeneity, both lateral and in-depth. If MA-XRF has overcome the lateral inhomogeneity through the collection of multiple XRF spectra in different positions, it is more difficult to find an optimal way to perform in-depth analyses. Now, only confocal micro XRF allows for precise 3D analyses, as other techniques are limited to certain kinds of samples. In recent years, however, angle-resolved XRF has given promising results in the analysis of layered samples. In this study, we will review the information about this new analytical technique and its advantages and disadvantages in studying cultural heritage objects following our recent studies.

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PIXE (particle induced X-ray emission): A non-destructive analysis method adapted to the thin decorative coatings of antique ceramics

Cited by 10 publications

References 22 publications

Evolution of terra sigillata technology from Italy to Gaul through a multi-technique approach

Evolution of terra sigillata technology from Italy to Gaul through a multi-technique approach

Redwares From Gubbacka’s Medieval Village: Regional and Inter-Regional Views on Ceramic Networks and Technology (Sem-Eds)

Angle-Dependent XRF Analyses: Pros and Cons of a Novel Technique in the Field of Cultural Heritage

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