Search Results - "Van der Snickt, Geert"

Chemical Mapping by Macroscopic X‐ray Powder Diffraction (MA‐XRPD) of Van Gogh's Sunflowers: Identification of Areas with Higher Degradation Risk by Vanmeert, Frederik, Hendriks, Ella, Van der Snickt, Geert, Monico, Letizia, Dik, Joris, Janssens, Koen

“…The discoloration rate of chrome yellow (CY), a class of synthetic inorganic pigments (PbCr1−xSxO4) frequently used by Van Gogh and his contemporaries,…”
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Plumbonacrite Identified by X-ray Powder Diffraction Tomography as a Missing Link during Degradation of Red Lead in a Van Gogh Painting by Vanmeert, Frederik, Van der Snickt, Geert, Janssens, Koen

“…Red lead, a semiconductor pigment used by artists since antiquity, is known to undergo several discoloration phenomena. These transformations are either…”
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The dark halo technique in the oeuvre of Michael Sweerts and other Flemish and Dutch baroque painters. A 17th c. empirical solution to mitigate the optical ‘simultaneous contrast’ effect? by Derks, Kirsten, Van der Snickt, Geert, Legrand, Stijn, Van der Stighelen, Katlijne, Janssens, Koen

“…Although the topic is rarely addressed in literature, a significant number of baroque paintings exhibit dark, halo-like shapes around the contours of the…”
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Evidence for Degradation of the Chrome Yellows in Van Gogh's Sunflowers: A Study Using Noninvasive In Situ Methods and Synchrotron-Radiation-Based X-ray Techniques by Monico, Letizia, Janssens, Koen, Hendriks, Ella, Vanmeert, Frederik, Van der Snickt, Geert, Cotte, Marine, Falkenberg, Gerald, Brunetti, Brunetto Giovanni, Miliani, Costanza

“…This paper presents firm evidence for the chemical alteration of chrome yellow pigments in Van Gogh’s Sunflowers (Van Gogh Museum, Amsterdam). Noninvasive in…”
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James Ensor's pigment use: artistic and material evolution studied by means of portable X-ray fluorescence spectrometry by Snickt, Geert Van der, Janssens, Koen, Schalm, Olivier, Aibéo, Cristina, Kloust, Hauke, Alfeld, Matthias

“…In this paper, portable X‐ray fluorescence spectrometry (PXRF) was employed as a screening tool for determining and comparing the pigment use in a large series…”
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Visualization of a Lost Painting by Vincent van Gogh Using Synchrotron Radiation Based X-ray Fluorescence Elemental Mapping by Dik, Joris, Janssens, Koen, Van Der Snickt, Geert, van der Loeff, Luuk, Rickers, Karen, Cotte, Marine

“…Vincent van Gogh (1853−1890), one of the founding fathers of modern painting, is best known for his vivid colors, his vibrant painting style, and his short but…”
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Large‐Area Elemental Imaging Reveals Van Eyck's Original Paint Layers on the Ghent Altarpiece (1432), Rescoping Its Conservation Treatment by Van der Snickt, Geert, Dubois, Hélène, Sanyova, Jana, Legrand, Stijn, Coudray, Alexia, Glaude, Cécile, Postec, Marie, Van Espen, Piet, Janssens, Koen

“…A combination of large‐scale and micro‐scale elemental imaging, yielding elemental distribution maps obtained by, respectively non‐invasive macroscopic X‐ray…”
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Combined use of Synchrotron Radiation Based Micro-X-ray Fluorescence, Micro-X-ray Diffraction, Micro-X-ray Absorption Near-Edge, and Micro-Fourier Transform Infrared Spectroscopies for Revealing an Alternative Degradation Pathway of the Pigment Cadmium Yellow in a Painting by Van Gogh by Van der Snickt, Geert, Janssens, Koen, Dik, Joris, De Nolf, Wout, Vanmeert, Frederik, Jaroszewicz, Jacub, Cotte, Marine, Falkenberg, Gerald, Van der Loeff, Luuk

“…Over the past years a number of studies have described the instability of the pigment cadmium yellow (CdS). In a previous paper we have shown how cadmium…”
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Degradation Process of Lead Chromate in Paintings by Vincent van Gogh Studied by Means of Synchrotron X-ray Spectromicroscopy and Related Methods. 1. Artificially Aged Model Samples by Monico, Letizia, Van der Snickt, Geert, Janssens, Koen, De Nolf, Wout, Miliani, Costanza, Verbeeck, Johan, Tian, He, Tan, Haiyan, Dik, Joris, Radepont, Marie, Cotte, Marine

“…On several paintings by artists of the end of the 19th century and the beginning of the 20th Century a darkening of the original yellow areas, painted with the…”
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Comparison of four mobile, non‐invasive diagnostic techniques for differentiating glass types in historical leaded windows: MA‐XRF, UV–Vis–NIR, Raman spectroscopy and IRT by Cagno, Simone, Van der Snickt, Geert, Legrand, Stijn, Caen, Joost, Patin, Mathilde, Meulebroeck, Wendy, Dirkx, Yarince, Hillen, Michaël, Steenackers, Gunther, Rousaki, Anastasia, Vandenabeele, Peter, Janssens, Koen

“…This paper critically compares the performance of four non‐invasive techniques that match the accuracy, flexibility, time‐efficiency, and transportability…”
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Degradation Process of Lead Chromate in Paintings by Vincent van Gogh Studied by Means of Synchrotron X-ray Spectromicroscopy and Related Methods. 2. Original Paint Layer Samples by Monico, Letizia, Van der Snickt, Geert, Janssens, Koen, De Nolf, Wout, Miliani, Costanza, Dik, Joris, Radepont, Marie, Hendriks, Ella, Geldof, Muriel, Cotte, Marine

“…The darkening of the original yellow areas painted with the chrome yellow pigment (PbCrO4, PbCrO4·xPbSO4, or PbCrO4·xPbO) is a phenomenon widely observed on…”
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Reviving degraded colors of yellow flowers in 17th century still life paintings with macro- and microscale chemical imaging by De Keyser, Nouchka, Broers, Fréderique, Vanmeert, Frederik, De Meyer, Steven, Gabrieli, Francesca, Hermens, Erma, Van der Snickt, Geert, Janssens, Koen, Keune, Katrien

“…Over time, artist pigments are prone to degradation, which can decrease the readability of the artwork or notably change the artist's intention. In this…”
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Qualitative Comparison of Lock-in Thermography (LIT) and Pulse Phase Thermography (PPT) in Mid-Wave and Long-Wave Infrared for the Inspection of Paintings by Hillen, Michaël, Sels, Seppe, Ribbens, Bart, Verspeek, Simon, Janssens, Koen, Van der Snickt, Geert, Steenackers, Gunther

“…When studying paintings with active infrared thermography (IRT), minimizing the temperature fluctuations and thermal shock during a measurement becomes…”
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Characterization of a Degraded Cadmium Yellow (CdS) Pigment in an Oil Painting by Means of Synchrotron Radiation Based X-ray Techniques by Van der Snickt, Geert, Dik, Joris, Cotte, Marine, Janssens, Koen, Jaroszewicz, Jakub, De Nolf, Wout, Groenewegen, Jasper, Van der Loeff, Luuk

“…On several paintings of James Ensor (1860−1949), a gradual fading of originally bright yellow areas, painted with the pigment cadmium yellow (CdS), is…”
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Recent trends in quantitative aspects of microscopic X-ray fluorescence analysis by Janssens, Koen, De Nolf, Wout, Van Der Snickt, Geert, Vincze, Laszlo, Vekemans, Bart, Terzano, Roberto, Brenker, Frank E.

“…Micro X-ray fluorescence analysis ( μ-XRF) is one of the newest branches of XRF, which has developed very rapidly since 1990. In this review, we first discuss…”
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Towards a novel strategy for soot removal from water-soluble materials: the synergetic effect of hydrogels and cyclomethicone on gelatine emulsion-based photographs by Ortega Saez, Natalia, Arno, Robbe, Marchetti, Andrea, Cauberghs, Sabine, Janssens, Koen, Van der Snickt, Geert, Al-Emam, Ehab

“…Gels are a popular cleaning method for paper conservators and a lot of research has been done concerning gel cleaning of paper objects over the last 15 years…”
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Use of hyperspectral imaging to monitor the effectiveness of plasma-generated atomic oxygen for non-contact cleaning of indigo dyed silk by Martinelli, Elisabetta, Candeo, Alessia, Di Benedetto, Alessia, Yang, Nan, Cremonesi, Marta, Mederos-Henry, Francisco, Van der Snickt, Geert, Nikiforv, Anton, Comelli, Daniela

“…This study explores the use of hyperspectral imaging (HSI) to monitor the effectiveness of plasma-generated atomic oxygen (AO) treatment for non-invasive…”
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Imaging secondary reaction products at the surface of Vermeer’s Girl with the Pearl Earring by means of macroscopic X-ray powder diffraction scanning by De Meyer, Steven, Vanmeert, Frederik, Vertongen, Rani, van Loon, Annelies, Gonzalez, Victor, van der Snickt, Geert, Vandivere, Abbie, Janssens, Koen

“…The use of non-invasive macroscopic imaging techniques is becoming more prevalent in the field of cultural heritage, especially to avoid invasive procedures…”
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Van Gogh’s Irises and Roses: the contribution of chemical analyses and imaging to the assessment of color changes in the red lake pigments by Centeno, Silvia A., Hale, Charlotte, Carò, Federico, Cesaratto, Anna, Shibayama, Nobuko, Delaney, John, Dooley, Kathryn, van der Snickt, Geert, Janssens, Koen, Stein, Susan Alyson

“…Vincent van Gogh’s still lifes Irises and Roses were investigated to shed light onto the degree to which the paintings had changed, both individually and in…”
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Combined Micro- and Macro scale X-ray powder diffraction mapping of degraded Orpiment paint in a 17th century still life painting by Martinus Nellius by Simoen, Jonas, De Meyer, Steven, Vanmeert, Frederik, de Keyser, Nouchka, Avranovich, Ermanno, Van der Snickt, Geert, Van Loon, Annelies, Keune, Katrien, Janssens, Koen

“…The spontaneous chemical alteration of artists’ pigment materials may be caused by several degradation processes. Some of these are well known while others are…”
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