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WD-XRF technique for speciation of iron and quantification of its oxidation states in geological samples using L-series of iron X-ray spectrum X-Ray Spectrom. (IF 1.2) Pub Date : 2024-02-27 Ashok Kumar Maurya, Piyali Deb Barman
Wavelength dispersive X-ray fluorescence (WD-XRF) spectrometry is a fast and widely used technique for elemental analysis of geological samples from Na to U. However, it has seldom been applied for quantitative determination of oxidation states of elements in complex matrices. In this study, we present a method to determine the oxidation states of iron in geological samples by WD-XRF. We used the FeLα1
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Application of X-ray fluorescence in forensic archeology: A review X-Ray Spectrom. (IF 1.2) Pub Date : 2024-02-12 Mehak Manhas, Anjali Tomar, Maanvendra Tiwari, Shweta Sharma
Forensic Archeology is the application of techniques and principles of archeology in the pursuit of examining a crime or incident with legal interest. A wide range of analytical studies are employed in examining archeological remains. X-ray fluorescence (XRF) spectroscopy remains to be one of the most used techniques for rapid examination of trace evidence typically found on an archeological crime
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Determination of trace elements in titanium oxides by wavelength dispersive x-ray fluorescence spectrometry (WD-XRF) X-Ray Spectrom. (IF 1.2) Pub Date : 2024-02-04 M. F. Gazulla, M. Orduña, M. Rodrigo
TiO2 is used in a great variety of industries (foods, medicines, cosmetics, etc.). In food industry, although the use of TiO2 as additive was banned by EU in 2022, it is still authorized in medicinal products, and is allowed as food ingredient in US and Canada. Focusing on cosmetics, regulations state some forbidden elements (As, Cd, Ni, Hg, Sb, and Pb), and others allowed with a specific limit (Co
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News Article X-Ray Spectrom. (IF 1.2) Pub Date : 2024-02-06 Kenji Sakurai
First beam at the Japan's new synchrotron (December 7, 2023). The first beams have been successfully observed at the BL13U and BL10U undulator beamlines of NanoTerasu, Japan's new 3 GeV synchrotron source currently under construction at the Aobayama campus of Tohoku University in Sendai, Japan. The facility is scheduled to officially open in April 2024. For more information, visit the Web page, https://nanoterasu
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Calendar Article X-Ray Spectrom. (IF 1.2) Pub Date : 2024-02-06 Kenji Sakurai
2024 January 31–February 2 Nano tech 2024 - International Nanotechnology Exhibition & Conference Tokyo Big Sight, Tokyo, Japan Contact: Secretariat of nano tech executive committee c/o JTB Communication Design, Inc. Celestine Shiba Mitsui Building, 3–23-1, Shiba, Minato-ku, Tokyo, Japan 105–8335 Phone: +81-3-5657-0760, Fax:+81-3-5657-0645, nanotech@jtbcom.co.jp https://www.nanotechexpo.jp/index.html
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Degradation mechanisms of Indian banks promissory notes written in iron-gall inks and its conservation X-Ray Spectrom. (IF 1.2) Pub Date : 2024-01-10 Sarvesh Singh, Manager Rajdeo Singh
The objective of this study is to investigate the deterioration of 18th-century Indian Bank's Promissory Notes written using iron-gall ink. The research employs non-destructive techniques such as Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and scanning electron microscopy (SEM) with energy-dispersive X-ray spectroscopy to analyze the elemental composition and structural
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Seeking for non-friendly chemical elements in tabletop sugar and zero to low-calorie sweetener sachets X-Ray Spectrom. (IF 1.2) Pub Date : 2024-01-09 Hussein Abdul Karim Moussa, Diego Osmar Galeano Espinola, Sandy González Hernández, Marcelo G. Hönnicke
Different tabletop sugar and zero to low-calorie sweetener samples (sachets) of different suppliers, taken randomly, at different cafeterias in Brazil, Argentina, and Paraguay have been selected, for spectroscopy and X-ray diffraction analysis, to figure out if they can present non-friendly components in their composition. Traces of sulfites and aluminosilicates make only 2 out of 16 tabletop sugar
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Monitoring of toxic metals and metalloids in the urine of non-professional sportsmen using total reflection x-ray fluorescence X-Ray Spectrom. (IF 1.2) Pub Date : 2023-12-26 Jasna Jablan, Maja Ortner Hadžiabdić, Ana-Marija Domijan, Suzana Inić, Hagen Stosnach
Exposure to toxic metals and metalloids is a significant public health concern and can seriously affect human health. The aim of this study was to establish the presence of toxic metals and metalloids in the urine of non-professional sportsmen who participated in a mountain ultramarathon using a benchtop total reflection x-ray fluorescence (TXRF) system. TXRF allows for easy and rapid sample preparation
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News Article X-Ray Spectrom. (IF 1.2) Pub Date : 2023-12-11 Kenji Sakurai
Denver X-Ray Conference Awards (August 9, 2023) The following awards were presented during the 72nd Annual Denver X-Ray Conference, held August 7–11 at The Westin Chicago Lombard, Lombard, Illinois, USA. The Barrett Award, given biennially to recognize the outstanding contributions to the field of powder diffraction, was presented to Dr. Ashfia Huq (Sandia National Laboratories, USA) for her commitment
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Calendar Article X-Ray Spectrom. (IF 1.2) Pub Date : 2023-12-11 Kenji Sakurai
2023 November 26–December 1 Materials Research Society 2023 Fall Meeting Boston, MA, USA https://www.mrs.org/meetings-events/fall-meetings-exhibits/2023-mrs-fall-meeting December 5–8 10th Annual Ambient Pressure X-ray Photoelectron Spectroscopy Workshop (APXPS 2023) Chang Yung-Fa Foundation (CYFF) International Convention Center 10F, Taipei, Taiwan https://indico.nsrrc.org.tw/event/14/ 2024 January
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A new compact micro-XRF spectrometer with polychromatic x-ray sample excitation X-Ray Spectrom. (IF 1.2) Pub Date : 2023-12-03 Peter Wobrauschek, Dieter Ingerle, Josef Prost, Sangita Dhara, Nand Lal Mishra, Michael Iro, Christina Streli
A new compact micro-x-ray fluorescence (μ-XRF) spectrometer covering wide range of elements was developed and fabricated. The working capabilities of this new compact custom-made μ-XRF spectrometer are presented. The spectrometer uses a low power Rh target x-ray tube for sample excitation. Polycapillary optics focuses the polychromatic beam down to 40 μm. The emitted radiation is measured by a peltier
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Nanoscale analysis of magnetic chains consisting of cobalt mesospheres by full-field transmission x-ray tomography X-Ray Spectrom. (IF 1.2) Pub Date : 2023-10-30 Jin Zhang, Chenpeng Zhou, Wanxia Huang, Shanfeng Wang, Yan Wang
Full-field transmission x-ray tomography can obtain 3D morphology and configurations of nanoscale materials. In this study, we further demonstrate the feasibility of this technique using magnetic chains consisting of cobalt mesospheres. The preliminary images presented in this article clearly reveal that three types of cobalt nanoparticles, namely, hollow, core–shell, and solid were found for magnetic
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IRIS: A novel integrated instrument for co-registered MA-XRF mapping and VNIR-SWIR hyperspectral imaging X-Ray Spectrom. (IF 1.2) Pub Date : 2023-10-30 Michele Occhipinti, Roberto Alberti, Tommaso Parsani, Claudio Dicorato, Paolo Tirelli, Michele Gironda, Alessandro Tocchio, Tommaso Frizzi
The combination of complementary techniques for materials analysis can play a key role in both art conservation and academic research. Nowadays, the correlation of x-ray fluorescence (XRF) with hyperspectral reflectance imaging in the visible and infrared region has become a valuable tool for palette identification, painting techniques studies and for the diagnostic support dedicated to restoration
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Capillary optics for full-field x-ray detectors with a magnification factor of 40 and 2.4 μm spatial resolution X-Ray Spectrom. (IF 1.2) Pub Date : 2023-10-22 Jonathan Kranz, Nico Liebing, Aniouar Bjeoumikhov
This article presents recent investigations of newly developed magnifying capillary optics used for full-field x-ray spectroscopy. The new cone-shaped capillary optics reached spatial resolutions of 2.4 μm and increased the magnification factor to 40. These parameters have been evaluated by a confocal full-field XRF (CFF-XRF) and a full-field XRF (FF-XRF) setup, depicted in this article.
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News Article X-Ray Spectrom. (IF 1.2) Pub Date : 2023-10-15 Kenji Sakurai
Advances in Cryogenic Radiation Detectors (September 7, 2023). Cryogenic radiation detectors are attractive because of their extremely high energy resolution, typically on the order of eV for X-rays in the keV range. One of their applications is in astrophysics. Recently, the Japan Aerospace Exploration Agency (JAXA) launched the XRISM (X-Ray Imaging and Spectroscopy Mission) satellite in collaboration
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Calendar Article X-Ray Spectrom. (IF 1.2) Pub Date : 2023-10-15 Kenji Sakurai
2023 September 5–8 19th International Conference on Total Reflection X-ray Fluorescence Analysis and Related Methods (TXRF2023) Clausthal University of Technology, Germany https://www.txrf2023.com/ September 11–13 S4SAS Conference 2023 Diamond Light Source, Oxfordshire, UK https://www.diamond.ac.uk/Home/Events/2023/S4SAS-Workshop-and-Conference.html September 11–15 SXR2023 – Principles of Functionality
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A field-based evaluation of portable XRF to screen for toxic metals in seafood products X-Ray Spectrom. (IF 1.2) Pub Date : 2023-10-04 Austin A. Roberts, Diana Guimarães, Mina W. Tehrani, Shao Lin, Patrick J. Parsons
Portable X-Ray Fluorescence (XRF) has become increasingly popular where traditional laboratory methods are either impractical, time consuming, and/or too costly. While the Limit of Detection (LOD) is generally poorer for XRF compared to laboratory-based methods, recent advances have improved XRF LODs and increased its potential for field-based studies. Portable XRF can be used to screen food products
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X-ray fluorescence analysis of mercury in human hairs using a secondary target placed behind the sample X-Ray Spectrom. (IF 1.2) Pub Date : 2023-10-02 Fumiyuki Inoue, Tugufumi Matsuyama, Kouichi Tsuji
Mercury is a pollutant that poses a considerable health risk. The concentration of mercury in scalp hair can be used to estimate past mercury exposure. Methods such as atomic absorption spectrophotometry and inductively coupled plasma-based techniques have been used to determine the concentrations of trace elements in scalp hairs; however, these analytical methods have several limitations, including
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The materials and techniques of The Lamentation of Christ (ca. 1460, Mauritshuis), attributed to Rogier van der Weyden and studio: Combining MA-XRF, reflectance imaging spectroscopy and paint cross-section analysis X-Ray Spectrom. (IF 1.2) Pub Date : 2023-10-02 Carol Pottasch, Annelies van Loon, John K. Delaney, Kathryn A. Dooley
This article highlights a technical examination of The Lamentation of Christ (ca. 1460, Mauritshuis) attributed to Rogier van der Weyden and studio, performed during its recent conservation treatment. The goal of the research was to identify and map pigments used for the final paint and underpaint of the figures using information from non-invasive chemical mapping and analysis of cross sections, to
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Elemental studies and mapping of cholesterol and pigment gallstones using scanning electron microscopy–energy dispersive spectroscopy X-Ray Spectrom. (IF 1.2) Pub Date : 2023-09-22 Varun Bali, Yugal Khajuria, Vidit Manyar, Pradeep K. Rai, Upendra Kumar, Charles Ghany, Shipra Tripathi, Vivek K. Singh
Gallstone formation is one of the most severe human diseases, with regional differences in gallstone composition worldwide. The formation of gallstones inside the gallbladder is a complex process and is still under debate despite advances in instrumentation. This study was an in-depth analysis of the chemical, structural, and elemental composition of cholesterol and pigment-type gallstones using Fourier
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Quantification of elements in dietary supplements by total reflection x-ray fluorescence and inductively coupled plasma optical emission spectrometry X-Ray Spectrom. (IF 1.2) Pub Date : 2023-09-15 Nikolai V. Alov, Dmitry V. Danilov, Pavel Yu. Sharanov, Valentin G. Semenov, Vitaly V. Panchuk, Sergey S. Savinov, Maria M. Khaydukova
The main purpose of this study was the comparison of the results of quantification obtained via different sample preparation approaches such as microwave-assisted wet digestion (MAWD) and suspension preparation. Two total reflection x-ray fluorescence (TXRF) spectrometers equipped with Mo x-ray tubes were used to compare results obtained via two different paths of sample preparations which would further
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Detecting electrochemical changes in a nickel–zinc battery by operando x-ray computed-tomography analysis during charge–discharge tests X-Ray Spectrom. (IF 1.2) Pub Date : 2023-09-07 Daichi Kohmoto, Kohei Miyazaki, Masahito Morita, Katsutoshi Fukuda, Takeshi Abe
This study developed a method to detect and analyze deterioration in sections of a battery during charge–discharge tests in real time. This method is based on a time-series analysis using x-ray computed tomography, three-dimensional reconstruction of the battery volume, and unsupervised machine learning. The developed method detects not only electrochemical changes in a battery through the conventional
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In situ observation of electrochemical reaction of Zn primer steel plate in NaCl solution using confocal micro-x-ray fluorescence imaging X-Ray Spectrom. (IF 1.2) Pub Date : 2023-09-05 Tsugufumi Matsuyama, Shota Sonoda, Tomoki Fuchita, Shinji Sakashita, Kouichi Tsuji
Steel plates have been widely used in bridges, vehicle bodies, guardrails, and so forth. Generally, to improve corrosion resistance, the surface of a steel plate is coated with a Zn layer. However, when the coated steel plate is scratched by external factors, the corrosion resistance decreases. Therefore, it is important to elucidate the elution processes of elements in coated layers and steel plates
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Brief overview of x-ray fluorescence applications in Mongolian brown coal X-Ray Spectrom. (IF 1.2) Pub Date : 2023-08-31 Z. Damdinsuren, P. Zuzaan, Bolortuya Damdinsuren
The review provides an overview and description of the results obtained from our coal studies conducted over the past two decades. It places specific emphasis on crucial parameters, including the ash content and calorific value of lignite, which is the main energy source in Mongolia. Through the research, we observed that the ash content of coal can be estimated by analyzing the concentrations of key
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Exploring the colour palette of Wasily Kandinsky: The case study of Spitz-Rund (1925) X-Ray Spectrom. (IF 1.2) Pub Date : 2023-08-31 Chiara Ricci, Valeria Ponza, Francesco Paolo Romano, Claudia Caliri, Claudia Conti, Alessandra Botteon, Elena Possenti, Dominique Scalarone, Michela Cardinali, Alessandra Bassi, Sara Abram, Luca Avataneo, Daniele Demonte, Federico Di Iorio, Melissa David, Costanza Miliani, Angela Fabrizia Previtali, Anna Piccirillo
The study and conservation of a painting by Wasily Kandinsky, titled Spitz-Rund and dated to 1925, was carried out at the Centro per la Conservazione ed il Restauro dei Beni Culturali “La Venaria Reale” 2018 and 2021. This work, owned by the Galleria d'Arte Moderna e Contemporanea of Bergamo (GAMeC), was created with oil paints on cardboard, and later glued onto a wooden support. A first phase of the
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Applicability of total reflection x-ray fluorescence for heavy metal analysis in Lake Baikal sponges X-Ray Spectrom. (IF 1.2) Pub Date : 2023-08-24 Galina V. Pashkova, Alyona A. Nikonova, Svetlana D. Dylgerova, Elena V. Chuparina, Artem S. Maltsev, Alena N. Zhilicheva, Olga Yu. Belozerova, Ludmila P. Paradina, Olga Yu. Glyzina, Igor V. Khanaev
Oxidative stress of Lake Baikal organisms can be caused by pollution of nearshore with anionic surfactants or heavy metals. Some specific heavy metals are essential for aquatic organisms. At present, there are no data concerning heavy metal content caused by anthropogenic pollution or chemotaxonomic features of Baikal sponges. Here, we consider the applicability of total reflection x-ray fluorescence
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Scanning macro x-ray fluorescence spectroscopy maps for matching 17th century paintings color areas to different earth pigments uses and for investigating attribution issues X-Ray Spectrom. (IF 1.2) Pub Date : 2023-08-23 Marco Colombo, Falk Münch, Peter Hoffmann, Jochen Sander, Wolfgang Ensinger
Fe and/or Mn-containing yellow ochre, red ochre, and umber earth pigments are omnipresent in 17th century paintings. Less common in the materials used in historical paintings of this period is the Fe and Mn-rich earth pigment sienna. Different uses of historical pigments in one painting by Georg Flegel (1566–1638) and another version of the same painting but of disputed attribution were recently uncovered
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MA-XRF analysis of ancient silver coins minted in southern Italy X-Ray Spectrom. (IF 1.2) Pub Date : 2023-08-20 Jessica Brocchieri, Rosa Vitale, Carlo Sabbarese
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. These coins are of great interest to historians and archaeologists because they provide extensive evidence on the monetary history and circulation of coins since the earliest times in the Campania
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Comparison of macro x-ray fluorescence and reflectance imaging spectroscopy for the semi-quantitative analysis of pigments in easel paintings: A study on lead white and blue verditer X-Ray Spectrom. (IF 1.2) Pub Date : 2023-08-08 Luís Manuel de Almeida Nieto, Francesca Gabrieli, Annelies van Loon, Victor Gonzalez, Joris Dik, Raf Van de Plas, Matthias Alfeld
Macroscopic x-ray fluorescence imaging spectroscopy (MA-XRF) and reflectance imaging spectroscopy (RIS) are important tools in the analysis of cultural heritage objects, both for conservation and art historical research purposes. The elemental and molecular distributions provided by MA-XRF and RIS respectively, are particularly useful for the identification and mapping of pigments in easel paintings
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News Article X-Ray Spectrom. (IF 1.2) Pub Date : 2023-08-08 Kenji Sakurai
Detection of single atom using soft X-ray spectroscopy (May 31, 2023) A research group at Argonne National Laboratory's APS synchrotron radiation facility has reported the detection of single atoms using synchrotron radiation X-rays (Tolulope M. Ajayi, Nozomi Shirato, Tomas Rojas, Sarah Wieghold, Xinyue Cheng, Kyaw Zin Latt, Daniel J. Trainer, Naveen K. Dandu, Yiming Li, Sineth Premarathna, Sanjoy
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Calendar Article X-Ray Spectrom. (IF 1.2) Pub Date : 2023-08-08 Kenji Sakurai
2023 July 19–23 High Precision X-Ray Measurements 2023 INFN Laboratories of Frascati, Italy https://hpxm2023.github.io/ July 23–28 Observing Complex Systems in Space and Time with Tailormade X-Rays from Next-Generation Sources (Gordon X-ray Science Conference) Stonehill College, Easton, MA, USA https://www.grc.org/x-ray-science-conference/2023/ July 23–28 11th International Topical Meeting on Industrial
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Characterization of the iron sand collected from the foot of Mt. Aburayama (Fukuoka, Japan) for estimating the origin of archeological iron artifacts from northern Kyushu X-Ray Spectrom. (IF 1.2) Pub Date : 2023-08-07 Shintaro Ichikawa, Yuta Ishikake, Yukiko Nishi, Satoshi Kawata, Hirofumi Yamakawa, Tsutomu Kurisaki
The iron sand around Mt. Aburayama (Fukuoka, Japan), where various ancient iron-making sites are located, was investigated to establish a research infrastructure for identification of the raw material used in the archeological iron artifacts excavated from this area. Iron sand samples were magnetically collected from the rivers flowing in this area and nearby outcrop soil. The samples were qualitatively
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EXRS2022: The 2022 edition of the European X-ray Spectrometry conference, held in Bruges, Belgium X-Ray Spectrom. (IF 1.2) Pub Date : 2023-08-06 Koen Janssens
The European Conference on X-Ray Spectrometry (EXRS) is a biennial conference series that started in 1984 in Gothenburg, Sweden. This conference has become a traditional meeting for scientists from around the world working in x-ray spectrometry or using one of its several techniques: X-ray fluorescence (conventional, micro-fluorescence, synchrotron-based, and total-reflection), electron microprobe
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Francis Williams: Shedding light on the production, materials and techniques of the portrait of a Jamaican scholar X-Ray Spectrom. (IF 1.2) Pub Date : 2023-08-04 Lucia Noor Melita, Silvia Rita Amato, Valentina Risdonne, Laura Ledwina, Austin Nevin, Lucia Burgio
The Victoria and Albert Museum holds an important portrait of the Jamaican scholar and writer Francis Williams (c.1692/97–1762), portrayed as a scholar in his study. It is believed to have been painted around 1745 by an unknown artist, but the circumstances of its production are unknown. A technical examination of the painting was performed using x-radiography and infrared reflectography (IRR), macro
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Super-resolution reconstruction of vertebrate microfossil computed tomography images based on deep learning X-Ray Spectrom. (IF 1.2) Pub Date : 2023-08-02 Yemao Hou, Mario Canul-Ku, Xindong Cui, Min Zhu
Micropaleontologists use the fine structures of microfossils to extract evolutionary information. These structures could not be directly observed with the naked eye. Recently, paleontologists resort to computed tomography (CT) images to mine the information, and pursue higher resolution CT images with in-depth research. Therefore, we propose a new model, weighted super-resolution generative adversarial
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Portable x-ray fluorescence as a tool for assessing electric marks in forensic evaluation X-Ray Spectrom. (IF 1.2) Pub Date : 2023-08-01 Stefano Tambuzzi, Letizia Bonizzoni, Francesco Di Paola, Debora Mazzarelli, Giulia Caccia, Cristina Cattaneo
Portable x-ray fluorescence (XRF) is a reliable, rapid and noninvasive technique. Recently, it has been used in a wide variety of fields where the sample must still be available after examination or when qualitative information on chemical composition is needed quickly to perform more detailed studies. These properties also make it suitable for forensic investigations, as shown by some recent reports
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CT-value conservation based spatial transformer network for cardiac motion correction X-Ray Spectrom. (IF 1.2) Pub Date : 2023-07-27 Xuan Xu, Peng Wang, Liyi Zhao, Guotao Quan
Artifact correction is a great challenge in cardiac imaging. During the correction of coronary tissue with motion-induced artifacts, the spatial distribution of CT value not only shifts according to the motion vector field (MVF), but also shifts according to the volume change rate of the local voxels. However, the traditional interpolation method does not conserve the CT value during motion compensation
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Interpretation of x-ray spectral data using self-organising maps and hierarchical clustering: A study of Vilhelm Hammershøi's use of painting materials X-Ray Spectrom. (IF 1.2) Pub Date : 2023-07-27 Gianluca Pastorelli, Annette S. Ortiz Miranda, Anne Haack Christensen
The goal of the Vilhelm Hammershøi Digital Archive project of the National Gallery of Denmark is to understand the Danish painter Vilhelm Hammershøi's painting methods by compiling a comprehensive amount of data on his use of materials and working methods through visual and technical examination of a large number of his paintings, and to make this information available to researchers and the public
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Investigation of snow cover solid phase using total-reflection x-ray fluorescence method for an assessment of the environmental pollution X-Ray Spectrom. (IF 1.2) Pub Date : 2023-07-14 Victor M. Chubarov, Artem S. Maltsev, Alena A. Amosova, Elena V. Chuparina, Sergey N. Prosekin, Julia V. Sokolnikova
Snow cover is an important source of data for the study of environmental pollution due to its ability to accumulate atmospheric dust particles. A total reflection x-ray fluorescence method (TXRF) was applied to assess the concentration levels of potentially toxic elements (As, Pb, Zn, Ni, Cu, Cr, V, Mn, and Sr) in samples of snow cover solid phase collected in suburban areas of the Irkutsk region with
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PM2.5 at a semi-rural site near Beijing, China X-Ray Spectrom. (IF 1.2) Pub Date : 2023-07-10 J. Boman, M. Langer, X. Pei, S. Guo, R. K. Pathak, S. M. Gaita, M. Hu, M. Hallquist
Breathing clean air is a human right still not accessible to everyone. In most of the world, the air is polluted, which affects both the environment and human health. To investigate the air pollution situation in a semi-rural part of northern China, particles with a diameter below 2.5 μm (PM2.5) were collected in Changping, 40 km northwest of Beijing in May and June 2016. The particles were analyzed
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Caravaggio's copper X-Ray Spectrom. (IF 1.2) Pub Date : 2023-07-05 John Twilley
St. John the Baptist in the Wilderness, commissioned for the private chapel of Genoese banker. Ottavio Costa in 1602/3 and now in the collection of the Nelson-Atkins Museum of Art (#52-25), provides an important opportunity to understand Caravaggio's use of materials from one of his best-preserved paintings. macro-X-ray fluorescence (MA-XRF) elemental mapping has now been used to build upon a 2016
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Combined x-ray reflectivity and grazing incidence x-ray fluorescence study of Ta/Cr/Pt thin film stacks X-Ray Spectrom. (IF 1.2) Pub Date : 2023-07-05 Philippe Jonnard, Karine Le Guen, Renaud Delaunay, Yves Ménesguen, Marie-Christine Lépy, Emrick Briand, Didier Schmaus, Ian Vickridge
The Ta/Cr/Pt three-layer system can be used as a planar x-ray waveguide, that is to say it can guide an x-ray beam inside its chromium layer. This property comes from the difference in density and hence in optical index between the two “heavy” or cladding tantalum and platinum layers and the “light” or guiding chromium layer. The waveguide will be efficient provided the layers are a few nanometers
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Seeing in the dark: Challenges in the interpretation of x-ray fluorescence element distribution maps associated with black paints X-Ray Spectrom. (IF 1.2) Pub Date : 2023-07-02 Catherine Higgitt, Marika Spring, Marta Melchiorre Di Crescenzo, Helen Howard
During the conservation of easel paintings, black draperies or dark backgrounds often prove problematic to treat and understand in terms of condition. Despite most black pigments in Old Master paintings not intrinsically containing high atomic number elements, the investigation of black paints is one of the National Gallery's major uses and most helpful applications of x-ray fluorescence (XRF) scanning
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Analysis of metals in particulate matter suspended in air by total reflection x-ray fluorescence X-Ray Spectrom. (IF 1.2) Pub Date : 2023-07-03 Ana Paula F. Almeida, Ramon S. Santos, Gabriel C. Ferreira, Raysa C. Nardes, Francis. A. C. R. A. Sanches, Hamilton. S. Gama Filho, Roberta G. Leitão, Marcelino J. Anjos, Ricardo T. Lopes, Davi F. Oliveira
Atmospheric particulate matter (PM) is considered to be a set of pollutants suspended in the air, from industrial processes, motor vehicle exhaust, resuspended street dust, biomass burning, and others. Among the toxic chemical compounds, PM is considered contaminants of great importance for researchers, as they offer harmful effects to humans, fauna and flora. Moreover, exposure to PM can cause the
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Experimental investigations of two-electron relaxation processes in Rydberg hollow atoms X-Ray Spectrom. (IF 1.2) Pub Date : 2023-07-02 Łukasz Jabłoński, Dariusz Banaś, Paweł Jagodziński, Aldona Kubala-Kukuś, Daniel Sobota, Ilona Stabrawa, Karol Szary, Marek Pajek
The two-electron relaxation processes in Rydberg hollow atoms (RHA), formed in collisions of slow highly charged ions (HCI) of Xe q + (q = 23–36) with metallic Be surface, were studied experimentally by means of X-ray spectroscopy. The pulsed beams of HCI were delivered by the electron beam ion source while the emitted X-rays were observed by a silicon drift detector. From the measured spectra of M-X-rays
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Recent advances in ultra-trace determination of uranium in natural water using total reflection X-ray fluorescence (TXRF) spectrometry X-Ray Spectrom. (IF 1.2) Pub Date : 2023-06-29 Kaushik Sanyal, Sangita Dhara
This review article describes some of the recent advances in ultra-trace determination of uranium in various natural water bodies such as drinking water, underground water, seawater, etc. using total reflection x-ray florescence (TXRF) spectrometry. Uranium is one of the most hazardous element having chemical as well as radio-toxicity. However, due to its low concentration in water samples, direct
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Automated layer identification and segmentation of x-ray computer tomography imaged PCBs X-Ray Spectrom. (IF 1.2) Pub Date : 2023-06-25 Xiangyu Yun, Xiaomei Zhang, Yanfang Wang, Mohan Li, Shuangquan Liu, Zhe Wang, Mian Wang, Cunfeng Wei
The non-destructive inspection of Printed Circuit Boards (PCBs) through r-ray Computer Tomography (CT) is a recently developed method that offers several advantages over traditional inspection techniques. This method is non-invasive, quick, and offers high resolution, leading to significant improvements in inspection and repair efficiency. Post-image analysis is an important step in PCB inspection
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A step toward calculating the uncertainties in combined GIXRF-XRR X-Ray Spectrom. (IF 1.2) Pub Date : 2023-06-22 Stephanie Melhem, Yves Ménesguen, Emmanuel Nolot, Marie-Christine Lépy
The combination of X-ray reflectivity (XRR) and grazing incidence X-ray fluorescence (GIXRF) is a surface sensitive analytical method, which can be used for the characterization of thin films and multilayered materials. Both of these techniques are implemented on the same experimental setup and make use of similar mechanical processes and the same fundamental physical concept required for a combined
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An adaptive decomposition algorithm for quantitative spectral CT imaging X-Ray Spectrom. (IF 1.2) Pub Date : 2023-06-18 Xiaomei Zhang, Xiangyu Yun, Zhe Wang, Mohan Li, Jinming Hu, Chengmin Wang, Cunfeng Wei
With the development of photon counting detectors (PCDs), spectral CT achieves higher performance than in the past, thus has better application prospects. In this paper, an adaptive dual effect decomposition (ADED) algorithm is proposed to perform the quantitative estimation of effective atomic number and electron density. The algorithm is an empirical material identification algorithm that achieves
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In-house manufactured benchtop XRF spectrometer X-Ray Spectrom. (IF 1.2) Pub Date : 2023-06-14 Jonatha Demetrio Gozetto, Eduardo de Almeida, Marcos Augusto Stolf Brasil, Alex Virgilio, Eduardo Santos, Gil Ribeiro Furlan, Hudson Wallace Pereira de Carvalho
The growing efficiency of agribusiness depends on the development of technology. A key challenge regards the determination of plant mineral content, which help farmers to make a decision about fertilizer use. Currently, such nutritional status diagnoses are made based on wet chemical methods; they are usually slow and generate chemical wastess. In this context, an in-house manufactured XRF benchtop
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Development and validation of energy dispersive x-ray fluorescence method for quantification of cubic zirconia in diamond matrix X-Ray Spectrom. (IF 1.2) Pub Date : 2023-06-12 Dharmendrakumar S. Chauhan, Nanddeep N. Keer, Vinay V. Ghanekar, Prajakta P. Bujade, Mahesh P. Gaonkar, R. Acharya, Hemlata K. Bagla, A. V. R. Reddy
Qualitative and quantitative tests of gemstones and diamonds are routinely performed nondestructively in the laboratory of Gemmological Institute of India (GII), Mumbai, India. Qualitative tests are based on microscopic examination. Energy Dispersive X-Ray Fluorescence (EDXRF) spectrometry is used in the laboratory for quantitative analysis of elements. However, in some cases like determination of
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News Article X-Ray Spectrom. (IF 1.2) Pub Date : 2023-06-05 Kenji Sakurai
Book, “X-Ray Spectroscopy for Chemical State Analysis” (Jun Kawai, Springer, 2023) Professor Jun Kawai (Kyoto University, Japan) has published an interesting and useful book on materials characterization methods using X-ray emission, absorption, and photoelectron spectroscopies. Readers will be able to learn about basic X-ray physics topics such as “Particle and Wave Duality of X-rays” (Chapter 1)
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Calendar Article X-Ray Spectrom. (IF 1.2) Pub Date : 2023-06-05 Kenji Sakurai
2023 April 10–14 Materials Research Society 2023 Spring Meeting San Francisco, California, USA https://www.mrs.org/meetings-events/spring-meetings-exhibits/2023-mrs-spring-meeting April 17–21 2023 International Congress on Emerging Fields and Exploratory Research in Optics and Photonics (OPIC2023) Hybrid (PACIFICO Yokohama, Japan) https://opicon.jp/ May 7–11 17th European Workshop on MODERN DEVELOPMENTS
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Investigating local coordination and electronic nature of Cu centers in the copper complexes having aspartic and glutamic acids X-Ray Spectrom. (IF 1.2) Pub Date : 2023-05-30 V. K. Hinge, M. Bairagi, N. Yadav, S. K. Joshi, B. D. Shrivastava, S. N. Jha, D. Bhattacharya, A. Gaur
X-ray absorption fine structure (XAFS) at the Cu K-edge in copper complexes of L-aspartic acid (asp) and L-glutamic acid (glu), namely, [Cu(L-asp)(H2O)].H2O (1) and [Cu(L-glu)(H2O)].H2O (2) have been investigated using synchrotron radiation. Though, the crystal structure of both of the complexes 1 and 2 have been studied earlier using x-ray crystallography, it was considered worthwhile to study the
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Platinum determination by membrane complexation and energy dispersive x-ray fluorescence analysis—A preliminary study X-Ray Spectrom. (IF 1.2) Pub Date : 2023-05-26 Georgia P. Vlamaki, Nikolaos G. Kallithrakas-Kontos, Ignasi Queralt, Manuela Hidalgo
Platinum belongs to the technological metal group of platinum group metals, but it is finding more and more applications these days, especially in automotive catalytic converters and medicine. At the same time, the existing data on its potential toxicity both to humans and to the environment are currently rather limited, and there is also a need to increase the alternative possibilities of its chemical
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A multimodal scanner coupling XRF, UV–Vis–NIR photoluminescence and Vis–NIR–SWIR reflectance imaging spectroscopy for cultural heritage studies X-Ray Spectrom. (IF 1.2) Pub Date : 2023-05-25 R. Moreau, T. Calligaro, L. Pichon, B. Moignard, S. Hermon, I. Reiche
Scanning x-ray fluorescence (MA-XRF), Reflectance Imaging Spectroscopy (RIS) and Luminescence Imaging Spectroscopy (LIS) are scientific methods extensively used in the investigation of artworks in Cultural Heritage Science. Nevertheless, these three highly complementary imaging methods have never been implemented in a single instrument. In this paper, we present a scanning system that is the first
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Characterization of NORM-type scales from the oil industry through spectrometry techniques and multivariate analysis X-Ray Spectrom. (IF 1.2) Pub Date : 2023-05-25 Ana Carolina A. C. Izidório, Ramon S. Santos, Hamilton S. Gama Filho, Marcelino J. Anjos, Roberta G. Leitão, Ricardo T. Lopes, Davi F. Oliveira
The oil industries have as main problem in their activities of formation of scales containing material of the naturally occurring radioactive material (NORM) type on the internal walls of pipes and in some equipment that make up the process lines plant. This NORM can contribute to the exposure of workers during routine activities, either through external exposure, or internal, through inhalation or
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Limited-angle tomography reconstruction with a U-Conv-Swin-Net X-Ray Spectrom. (IF 1.2) Pub Date : 2023-05-23 Tianyu Fu, Sen Qiu, Yan Wang, Kai Zhang, Chenpeng Zhou, Jin Zhang, Shanfeng Wang, Wanxia Huang, Ye Tao, Qingxi Yuan
X-ray computed tomography (CT) is widely used as a non-destructive inspection technology. However, due to various limitations such as sample dimensions and blocking of in-situ instruments, projections can be acquired only in a limited-angle range during CT acquisition. When such projections are reconstructed with conventional algorithms, the details and contours are deteriorated by artefacts due to
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In memoriam Jean-Claude Dousse X-Ray Spectrom. (IF 1.2) Pub Date : 2023-05-20 Diane M. Eichert, Michael Kolbe, Joanna Hoszowska
‘Πάντα ῥεῖ’—‘everything flows’ A saying in Ancient Greek, attributed to the philosopher Heraclitus of Ephesus, states ‘τὰ πάντα ῥεῖ καὶ οὐδὲν μένει’. It may be translated to ‘everything flows, and nothing stays’. Late 2020, a few months after the passing of Prof. Dr. Jean-Claude Dousse, we published an editorial to commemorate his scientific carrier. In this short summary,1 we anticipated the launch
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A comprehensive archaeometric research on Roman ceramics of Sinop (Black Sea) X-Ray Spectrom. (IF 1.2) Pub Date : 2023-05-19 Murat Bayazit, Ali Akın Akyol, Merve Arıyürek
A multi analytical approach was applied to Roman ceramics excavated from the city center and the Church-Necropolis area in Kılıçlı plateau (Boyabat) in Sinop/Black Sea, Turkey. The samples were exposed to various characterization methods including spectroscopic, microscopic and thermal techniques. The relatively high amounts of CaO suggested use of calcareous clay batches for most of the Gülümoğlu