1
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Li T, Dresselhaus JL, Ivanov N, Prasciolu M, Fleckenstein H, Yefanov O, Zhang W, Pennicard D, Dippel AC, Gutowski O, Villanueva-Perez P, Chapman HN, Bajt S. Dose-efficient scanning Compton X-ray microscopy. LIGHT, SCIENCE & APPLICATIONS 2023; 12:130. [PMID: 37248250 DOI: 10.1038/s41377-023-01176-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 04/28/2023] [Accepted: 05/05/2023] [Indexed: 05/31/2023]
Abstract
The highest resolution of images of soft matter and biological materials is ultimately limited by modification of the structure, induced by the necessarily high energy of short-wavelength radiation. Imaging the inelastically scattered X-rays at a photon energy of 60 keV (0.02 nm wavelength) offers greater signal per energy transferred to the sample than coherent-scattering techniques such as phase-contrast microscopy and projection holography. We present images of dried, unstained, and unfixed biological objects obtained by scanning Compton X-ray microscopy, at a resolution of about 70 nm. This microscope was realised using novel wedged multilayer Laue lenses that were fabricated to sub-ångström precision, a new wavefront measurement scheme for hard X rays, and efficient pixel-array detectors. The doses required to form these images were as little as 0.02% of the tolerable dose and 0.05% of that needed for phase-contrast imaging at similar resolution using 17 keV photon energy. The images obtained provide a quantitative map of the projected mass density in the sample, as confirmed by imaging a silicon wedge. Based on these results, we find that it should be possible to obtain radiation damage-free images of biological samples at a resolution below 10 nm.
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Affiliation(s)
- Tang Li
- The Hamburg Centre for Ultrafast Imaging, 22761, Hamburg, Germany
| | | | - Nikolay Ivanov
- Center for Free-Electron Laser Science CFEL, Deutsches Elektronen-Synchrotron DESY, 22607, Hamburg, Germany
| | - Mauro Prasciolu
- Center for Free-Electron Laser Science CFEL, Deutsches Elektronen-Synchrotron DESY, 22607, Hamburg, Germany
| | - Holger Fleckenstein
- Center for Free-Electron Laser Science CFEL, Deutsches Elektronen-Synchrotron DESY, 22607, Hamburg, Germany
| | - Oleksandr Yefanov
- Center for Free-Electron Laser Science CFEL, Deutsches Elektronen-Synchrotron DESY, 22607, Hamburg, Germany
| | - Wenhui Zhang
- Center for Free-Electron Laser Science CFEL, Deutsches Elektronen-Synchrotron DESY, 22607, Hamburg, Germany
| | - David Pennicard
- Center for Free-Electron Laser Science CFEL, Deutsches Elektronen-Synchrotron DESY, 22607, Hamburg, Germany
| | | | - Olof Gutowski
- Deutsches Elektronen Synchrotron DESY, 22607, Hamburg, Germany
| | | | - Henry N Chapman
- The Hamburg Centre for Ultrafast Imaging, 22761, Hamburg, Germany.
- Center for Free-Electron Laser Science CFEL, Deutsches Elektronen-Synchrotron DESY, 22607, Hamburg, Germany.
- Department of Physics, Universität Hamburg, 22761, Hamburg, Germany.
| | - Saša Bajt
- The Hamburg Centre for Ultrafast Imaging, 22761, Hamburg, Germany.
- Center for Free-Electron Laser Science CFEL, Deutsches Elektronen-Synchrotron DESY, 22607, Hamburg, Germany.
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2
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Förste F, Bauer L, Streeck C, Radtke M, Reinholz U, Kadow D, Keil C, Mantouvalou I. Quantitative Analysis and 2D/3D Elemental Imaging of Cocoa Beans Using X-ray Fluorescence Techniques. Anal Chem 2023; 95:5627-5634. [PMID: 36961956 DOI: 10.1021/acs.analchem.2c05370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/26/2023]
Abstract
As an important raw material for the confectionery industry, the cocoa bean (Theobroma cacao L.) has to meet certain legal requirements in terms of food safety and maximum contaminant levels in order to enter the cocoa market. Understanding the enrichment and distribution of essential minerals but also toxic metals is of utmost importance for improving the nutritional quality of this economically important raw food material. We present three X-ray fluorescence (XRF) techniques for elemental bio-imaging of intact cocoa beans and one additional XRF technique for quantitative analysis of cocoa pellets. The interrelation of all the methods presented gives a detailed picture of the content and 3D-resolved distribution of elements in complete cocoa beans for the first time.
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Affiliation(s)
- Frank Förste
- Institute for Optics and Atomic Physics, Technical University of Berlin, Berlin 10623, Germany
| | - Leona Bauer
- Institute for Optics and Atomic Physics, Technical University of Berlin, Berlin 10623, Germany
- Helmholtz-Zentrum Berlin for Materials and Energy, Berlin 12489, Germany
| | - Cornelia Streeck
- Physikalisch-Technische Bundesanstalt, National Metrology Institute, Berlin 10587, Germany
| | - Martin Radtke
- Federal Institute for Materials Research and Testing (BAM), Berlin 12489, Germany
| | - Uwe Reinholz
- Federal Institute for Materials Research and Testing (BAM), Berlin 12489, Germany
| | | | - Claudia Keil
- Institute of Food Technology and Food Chemistry, Technical University of Berlin, Berlin 13355, Germany
| | - Ioanna Mantouvalou
- Helmholtz-Zentrum Berlin for Materials and Energy, Berlin 12489, Germany
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3
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Cakir CT, Piotrowiak T, Reinholz U, Ludwig A, Emmerling F, Streli C, Guilherme Buzanich A, Radtke M. Exploring the Depths of Corrosion: A Novel GE-XANES Technique for Investigating Compositionally Complex Alloys. Anal Chem 2023; 95:4810-4818. [PMID: 36867673 DOI: 10.1021/acs.analchem.3c00404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/04/2023]
Abstract
In this study, we propose the use of nondestructive, depth-resolved, element-specific characterization using grazing exit X-ray absorption near-edge structure spectroscopy (GE-XANES) to investigate the corrosion process in compositionally complex alloys (CCAs). By combining grazing exit X-ray fluorescence spectroscopy (GE-XRF) geometry and a pnCCD detector, we provide a scanning-free, nondestructive, depth-resolved analysis in a sub-micrometer depth range, which is especially relevant for layered materials, such as corroded CCAs. Our setup allows for spatial and energy-resolved measurements and directly extracts the desired fluorescence line, free from scattering events and other overlapping lines. We demonstrate the potential of our approach on a compositionally complex CrCoNi alloy and a layered reference sample with known composition and specific layer thickness. Our findings indicate that this new GE-XANES approach has exciting opportunities for studying surface catalysis and corrosion processes in real-world materials.
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Affiliation(s)
- Cafer Tufan Cakir
- Federal Institute for Materials Research and Testing (BAM), Berlin 12489, Germany
| | - Tobias Piotrowiak
- Institute for Materials, Chair for Materials Discovery and Interfaces, Ruhr-University Bochum, Bochum 44801, Germany
| | - Uwe Reinholz
- Federal Institute for Materials Research and Testing (BAM), Berlin 12489, Germany
| | - Alfred Ludwig
- Institute for Materials, Chair for Materials Discovery and Interfaces, Ruhr-University Bochum, Bochum 44801, Germany
| | - Franziska Emmerling
- Federal Institute for Materials Research and Testing (BAM), Berlin 12489, Germany
| | - Christina Streli
- Vienna University of Technology, Atominstitut, Vienna 1020, Austria
| | | | - Martin Radtke
- Federal Institute for Materials Research and Testing (BAM), Berlin 12489, Germany
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4
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Łach B, Fiutowski T, Koperny S, Krupska-Wolas P, Lankosz M, Mendys-Frodyma A, Mindur B, Świentek K, Wiącek P, Wróbel PM, Dąbrowski W. Application of Factorisation Methods to Analysis of Elemental Distribution Maps Acquired with a Full-Field XRF Imaging Spectrometer. SENSORS 2021; 21:s21237965. [PMID: 34883967 PMCID: PMC8659817 DOI: 10.3390/s21237965] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 11/19/2021] [Accepted: 11/24/2021] [Indexed: 11/23/2022]
Abstract
The goal of the work was to investigate the possible application of factor analysis methods for processing X-ray Fluorescence (XRF) data acquired with a full-field XRF spectrometer employing a position-sensitive and energy-dispersive Gas Electron Multiplier (GEM) detector, which provides only limited energy resolution at a level of 18% Full Width at Half Maximum (FWHM) at 5.9 keV. In this article, we present the design and performance of the full-field imaging spectrometer and the results of case studies performed using the developed instrument. The XRF imaging data collected for two historical paintings are presented along with the procedures applied to data calibration and analysis. The maps of elemental distributions were built using three different analysis methods: Region of Interest (ROI), Non-Negative Matrix Factorisation (NMF), and Principal Component Analysis (PCA). The results obtained for these paintings show that the factor analysis methods NMF and PCA provide significant enhancement of selectivity of the elemental analysis in case of limited energy resolution of the spectrometer.
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Affiliation(s)
- Bartłomiej Łach
- Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, Poland; (B.Ł.); (T.F.); (S.K.); (M.L.); (B.M.); (K.Ś.); (P.W.); (P.M.W.)
| | - Tomasz Fiutowski
- Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, Poland; (B.Ł.); (T.F.); (S.K.); (M.L.); (B.M.); (K.Ś.); (P.W.); (P.M.W.)
| | - Stefan Koperny
- Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, Poland; (B.Ł.); (T.F.); (S.K.); (M.L.); (B.M.); (K.Ś.); (P.W.); (P.M.W.)
| | - Paulina Krupska-Wolas
- Laboratory of Analysis and Non-Destructive Investigation of Heritage Objects, The National Museum in Krakow, al. 3 Maja 1, 30-062 Kraków, Poland; (P.K.-W.); (A.M.-F.)
| | - Marek Lankosz
- Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, Poland; (B.Ł.); (T.F.); (S.K.); (M.L.); (B.M.); (K.Ś.); (P.W.); (P.M.W.)
| | - Agata Mendys-Frodyma
- Laboratory of Analysis and Non-Destructive Investigation of Heritage Objects, The National Museum in Krakow, al. 3 Maja 1, 30-062 Kraków, Poland; (P.K.-W.); (A.M.-F.)
| | - Bartosz Mindur
- Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, Poland; (B.Ł.); (T.F.); (S.K.); (M.L.); (B.M.); (K.Ś.); (P.W.); (P.M.W.)
| | - Krzysztof Świentek
- Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, Poland; (B.Ł.); (T.F.); (S.K.); (M.L.); (B.M.); (K.Ś.); (P.W.); (P.M.W.)
| | - Piotr Wiącek
- Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, Poland; (B.Ł.); (T.F.); (S.K.); (M.L.); (B.M.); (K.Ś.); (P.W.); (P.M.W.)
| | - Paweł M. Wróbel
- Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, Poland; (B.Ł.); (T.F.); (S.K.); (M.L.); (B.M.); (K.Ś.); (P.W.); (P.M.W.)
| | - Władysław Dąbrowski
- Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, Poland; (B.Ł.); (T.F.); (S.K.); (M.L.); (B.M.); (K.Ś.); (P.W.); (P.M.W.)
- Correspondence:
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5
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Rakotondrajoa A, Radtke M. Machine learning based quantification of synchrotron radiation-induced x-ray fluorescence measurements—a case study. MACHINE LEARNING: SCIENCE AND TECHNOLOGY 2021. [DOI: 10.1088/2632-2153/abc9fb] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
In this work, we describe the use of artificial neural networks (ANNs) for the quantification of x-ray fluorescence measurements. The training data were generated using Monte Carlo simulation, which avoided the use of adapted reference materials. The extension of the available dataset by means of an ANN to generate additional data was demonstrated. Particular emphasis was put on the comparability of simulated and experimental data and how the influence of deviations can be reduced. The search for the optimal hyperparameter, manual and automatic, is also described. For the presented case, we were able to train a network with a mean absolute error of 0.1 weight percent for the synthetic data and 0.7 weight percent for a set of experimental data obtained with certified reference materials.
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6
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Batey DJ, Van Assche F, Vanheule S, Boone MN, Parnell AJ, Mykhaylyk OO, Rau C, Cipiccia S. X-Ray Ptychography with a Laboratory Source. PHYSICAL REVIEW LETTERS 2021; 126:193902. [PMID: 34047586 DOI: 10.1103/physrevlett.126.193902] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 03/19/2021] [Accepted: 04/08/2021] [Indexed: 06/12/2023]
Abstract
X-ray ptychography has revolutionized nanoscale phase contrast imaging at large-scale synchrotron sources in recent years. We present here the first successful demonstration of the technique in a small-scale laboratory setting. An experiment was conducted with a liquid metal-jet x-ray source and a single photon-counting detector with a high spectral resolution. The experiment used a spot size of 5 μm to produce a ptychographic phase image of a Siemens star test pattern with a submicron spatial resolution. The result and methodology presented show how high-resolution phase contrast imaging can now be performed at small-scale laboratory sources worldwide.
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Affiliation(s)
- Darren J Batey
- Diamond Light Source, Harwell Science and Innovation Campus, Fermi Avenue, Didcot OX11 0DE, United Kingdom
| | - Frederic Van Assche
- UGCT-RP, Department of Physics and Astronomy, Ghent University, Ghent 9000, Belgium
| | - Sander Vanheule
- UGCT-RP, Department of Physics and Astronomy, Ghent University, Ghent 9000, Belgium
| | - Matthieu N Boone
- UGCT-RP, Department of Physics and Astronomy, Ghent University, Ghent 9000, Belgium
| | - Andrew J Parnell
- Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, United Kingdom
| | - Oleksandr O Mykhaylyk
- Soft Matter Analytical Laboratory, Department of Chemistry, University of Sheffield, Sheffield S3 7HF, United Kingdom
| | - Christoph Rau
- Diamond Light Source, Harwell Science and Innovation Campus, Fermi Avenue, Didcot OX11 0DE, United Kingdom
| | - Silvia Cipiccia
- Diamond Light Source, Harwell Science and Innovation Campus, Fermi Avenue, Didcot OX11 0DE, United Kingdom
- Department of Medical Physics and Biomedical Engineering, University College London, London WC1E 6BT, United Kingdom
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7
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Abstract
Detectors are a key feature of the contemporary scientific approach to cultural heritage (CH), both for diagnostics and conservation. INFN-CHNet is the network of the Italian National Institute of Nuclear Physics that develops and applies new instrumentation for the study of CH. This process results in both optimized traditional state-of-the-art and highly innovative detection setups for spectrometric techniques. Examples of the former are X-rays, gamma-rays, visible-light and particles spectrometers tailored for CH applications, with optimized performances, reliability, weight, transportability, cost, absorbed power, and complementarity with other techniques. Regarding the latter, examples are ARDESIA, the array of detectors at the DAΦNE-Light facility, the MAXRS detection setup at the Riken-RAL muon beamline and the imaging facilities at the LENA Laboratory. Paths for next-generation instruments have been suggested, as in the case of the X-ray Superconductive Detectors and X-ray Microcalorimeter Spectrometers, allowing astonishing improvement in energy resolution. Many issues in CH can now be addressed thanks to scientific techniques exploiting the existing detectors, while many others are still to be addressed and require the development of new approaches and detectors.
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8
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Xiong G, Jia W, Shan Q, Zhang X, Tang X, Li J. Equipment design and performance characterization of full field x-ray fluorescence (FF-XRF) element distribution imaging system with combined collimating lens (CCL). THE REVIEW OF SCIENTIFIC INSTRUMENTS 2020; 91:123701. [PMID: 33379985 DOI: 10.1063/5.0024461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 11/07/2020] [Indexed: 06/12/2023]
Abstract
This work describes a full field x-ray fluorescence element distribution imaging system with a combined collimating lens (CCL), which is more suitable for a higher x-ray energy range (12 keV-30 keV). The system consists of an optical-use charge-coupled device (CCD) camera coupled to a combined collimating lens (CCL), which includes pinhole collimator and x-ray window, x-ray tube, and sample room. The continuously variable magnification of 0.5-2 is achieved under a compact structure. The x-ray spectrum and two-dimensional element distribution mapping of the irradiated sample are obtained by processing a series of images acquired by using the CCD camera in a single photon counting mode. The energy resolution is 275 eV at the reference energy of 14.957 keV (yttrium Kα, Z = 39). The limit of detection is 46.41 ppm by measuring yttrium standard solution. The spatial resolution is 135 μm when using a 100 μm pinhole at the magnification of 1. Samples made by metal foils and mineral pigments are tested, and the results proved that the system was reliable when detecting elements of a high atomic number.
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Affiliation(s)
- Genchao Xiong
- College of Materials Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China
| | - Wenbao Jia
- College of Materials Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China
| | - Qing Shan
- College of Materials Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China
| | - Xinlei Zhang
- College of Materials Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China
| | - Xinru Tang
- College of Materials Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China
| | - Jun Li
- College of Materials Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China
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9
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Boone MN, Van Assche F, Vanheule S, Cipiccia S, Wang H, Vincze L, Van Hoorebeke L. Full-field spectroscopic measurement of the X-ray beam from a multilayer monochromator using a hyperspectral X-ray camera. JOURNAL OF SYNCHROTRON RADIATION 2020; 27:110-118. [PMID: 31868743 PMCID: PMC6927514 DOI: 10.1107/s1600577519015212] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Accepted: 11/11/2019] [Indexed: 06/01/2023]
Abstract
Multilayer monochromator devices are commonly used at (imaging) beamlines of synchrotron facilities to shape the X-ray beam to relatively small bandwidth and high intensity. However, stripe artefacts are often observed and can deteriorate the image quality. Although the intensity distribution of these artefacts has been described in the literature, their spectral distribution is currently unknown. To assess the spatio-spectral properties of the monochromated X-ray beam, the direct beam has been measured for the first time using a hyperspectral X-ray detector. The results show a large number of spectral features with different spatial distributions for a [Ru, B4C] strip monochromator, associated primarily with the higher-order harmonics of the undulator and monochromator. It is found that their relative contributions are sufficiently low to avoid an influence on the imaging data. The [V, B4C] strip suppresses these high-order harmonics even more than the former, yet at the cost of reduced efficiency.
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Affiliation(s)
- Matthieu N. Boone
- Radiation Physics Research Group – UGCT, Department of Physics and Astronomy, Ghent University, Proeftuinstraat 86/N12, B-9000 Gent, Belgium
| | - Frederic Van Assche
- Radiation Physics Research Group – UGCT, Department of Physics and Astronomy, Ghent University, Proeftuinstraat 86/N12, B-9000 Gent, Belgium
| | - Sander Vanheule
- Radiation Physics Research Group – UGCT, Department of Physics and Astronomy, Ghent University, Proeftuinstraat 86/N12, B-9000 Gent, Belgium
| | - Silvia Cipiccia
- Diamond Light Source, Diamond House, Harwell Science and Innovation Campus, Fermi Avenue, Didcot OX11 0DE, UK
| | - Hongchang Wang
- Diamond Light Source, Diamond House, Harwell Science and Innovation Campus, Fermi Avenue, Didcot OX11 0DE, UK
| | - Laszlo Vincze
- X-ray Microspectroscopy and Imaging Group, Department of Chemistry, Ghent University, Krijgslaan 281/S12, B-9000 Gent, Belgium
| | - Luc Van Hoorebeke
- Radiation Physics Research Group – UGCT, Department of Physics and Astronomy, Ghent University, Proeftuinstraat 86/N12, B-9000 Gent, Belgium
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10
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De Pauw E, Tack P, Lindner M, Ashauer A, Garrevoet J, Vekemans B, Falkenberg G, Brenker FE, Vincze L. Highly Sensitive Nondestructive Rare Earth Element Detection by Means of Wavelength-Dispersive X-ray Fluorescence Spectroscopy Enabled by an Energy Dispersive pn-Charge-Coupled-Device Detector. Anal Chem 2019; 92:1106-1113. [PMID: 31774268 DOI: 10.1021/acs.analchem.9b04176] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ella De Pauw
- X-ray Microspectroscopy and Imaging Group, Department of Chemistry, Ghent University, Krijgslaan 281, B-9000 Ghent, Belgium
| | - Pieter Tack
- X-ray Microspectroscopy and Imaging Group, Department of Chemistry, Ghent University, Krijgslaan 281, B-9000 Ghent, Belgium
| | - Miles Lindner
- Institute for Geosciences, Goethe University Frankfurt, Altenhöferallee 1, 60438 Frankfurt am Main, Germany
| | - Antonia Ashauer
- Institute for Geosciences, Goethe University Frankfurt, Altenhöferallee 1, 60438 Frankfurt am Main, Germany
| | - Jan Garrevoet
- Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607 Hamburg, Germany
| | - Bart Vekemans
- X-ray Microspectroscopy and Imaging Group, Department of Chemistry, Ghent University, Krijgslaan 281, B-9000 Ghent, Belgium
| | - Gerald Falkenberg
- Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, 22607 Hamburg, Germany
| | - Frank E. Brenker
- Institute for Geosciences, Goethe University Frankfurt, Altenhöferallee 1, 60438 Frankfurt am Main, Germany
| | - Laszlo Vincze
- X-ray Microspectroscopy and Imaging Group, Department of Chemistry, Ghent University, Krijgslaan 281, B-9000 Ghent, Belgium
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11
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Zhao W, Hirano K, Sakurai K. Expanding a polarized synchrotron beam for full-field x-ray fluorescence imaging. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2019; 90:113704. [PMID: 31779452 DOI: 10.1063/1.5115421] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Accepted: 10/15/2019] [Indexed: 06/10/2023]
Abstract
Full-field x-ray fluorescence (XRF) imaging is an efficient technique for investigating element composition of a sample and the corresponding spatial distribution. Eliminating scattering x-rays is important for visualizing diluted/trace elements clearly. However, using the linear polarization of synchrotron radiation to remove scattering in full-field XRF imaging has not been feasible for many years because a synchrotron beam is inherently narrow in the direction perpendicular to the polarization and a large imaging area and a low scattering background cannot be simultaneously achieved. In this study, the trade-off was solved by expanding a synchrotron beam in the direction perpendicular to the polarization using an asymmetric-cut Si crystal. Large areas of samples were illuminated. In addition, a collimator plate, which only transmitted scattering x-rays that spread in the polarization direction, was used for imaging. Therefore, the detected scattering intensity was low. The present full-field XRF imaging scheme with a size-expanded polarized synchrotron beam is well suited for visualizing diluted/trace elements. It could be extended to x-ray absorption edge fine structure imaging for analyzing the chemical state of diluted/trace elements in inhomogeneous samples.
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Affiliation(s)
- Wenyang Zhao
- University of Tsukuba, 1-1-1, Tennodai, Tsukuba, Ibaraki 305-0006, Japan
| | - Keiichi Hirano
- Institute of Materials Structure Science, High Energy Accelerator Research Organization, 1-1, Oho, Tsukuba, Ibaraki 305-0801, Japan
| | - Kenji Sakurai
- University of Tsukuba, 1-1-1, Tennodai, Tsukuba, Ibaraki 305-0006, Japan
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12
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Spectroscopic imaging with single acquisition ptychography and a hyperspectral detector. Sci Rep 2019; 9:12278. [PMID: 31439864 PMCID: PMC6706576 DOI: 10.1038/s41598-019-48642-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Accepted: 07/31/2019] [Indexed: 11/24/2022] Open
Abstract
We present a new method of single acquisition spectroscopic imaging with high spatial resolution. The technique is based on the combination of polychromatic synchrotron radiation and ptychographic imaging with a recently developed energy discriminating detector. We demonstrate the feasibility with a Ni-Cu test sample recorded at I13-1 of the Diamond Light Source, UK. The two elements can be clearly distinguished and the Ni absorption edge is identified. The results prove the feasibility of obtaining high-resolution structural and chemical images within a single acquisition using a polychromatic X-ray beam. The capability of resolving the absorption edge applies to a wide range of research areas, such as magnetic domains imaging and element specific investigations in biological, materials, and earth sciences. The method utilises the full available radiation spectrum and is therefore well suited for broadband radiation sources.
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13
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Zhao W, Sakurai K. Multi-element X-ray movie imaging with a visible-light CMOS camera. JOURNAL OF SYNCHROTRON RADIATION 2019; 26:230-233. [PMID: 30655489 PMCID: PMC6337888 DOI: 10.1107/s1600577518014273] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 10/09/2018] [Indexed: 06/09/2023]
Abstract
For many years, X-ray movies have been considered a promising tool for exploring and providing insights into chemical reactions. A simultaneous multi-element X-ray movie can further clarify the behavior difference of various elements and help investigate their interactions. The present short communication illustrates how to conduct multi-element X-ray movie imaging in a synchrotron facility solely by placing a micro-pinhole in front of a visible-light complementary metal-oxide semiconductor (CMOS) camera. It has been found that the CMOS camera can resolve X-ray fluorescence spectra when it is specially operated. In this work, a spatial resolution of ∼15 µm was achieved. In the X-ray movie, a movie frame acquisition time of 2 min and a spatial resolution of ∼50 µm were simultaneously achieved. It is clear that the CMOS camera can be a cost-efficient option for many researchers who wish to establish their own setup for visualizing chemical diffusion in various reactions.
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Affiliation(s)
- Wenyang Zhao
- University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-0006, Japan
- National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
| | - Kenji Sakurai
- University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-0006, Japan
- National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
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14
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Zhao W, Sakurai K. Realtime Observation of Diffusing Elements in a Chemical Garden. ACS OMEGA 2017; 2:4363-4369. [PMID: 31457729 PMCID: PMC6641959 DOI: 10.1021/acsomega.7b00930] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Accepted: 07/17/2017] [Indexed: 05/15/2023]
Abstract
The chemical garden, which has been known as the plant-growth-like diffusion of chemicals since the 17th century, has regained much attention in recent years. Significant progress in research not only promoted the understanding of the phenomenon itself but also suggested a prospective method of synthesizing new materials via the chemical garden route. It is extremely important to introduce new characterization techniques to provide more insights into chemical diffusion and element redistribution during the reaction process. The present article describes some successful applications of the realtime X-ray fluorescence (XRF) movie technique to observe each diffusing element. The protagonist of the movie is a chemical garden reaction growing from a seed of calcium salt and ferrous salt mixtures. Through observation by an XRF movie, it has been found that the growth rate and diffusion behavior of calcium and iron are very different. This results in a macroscopic diversity of the element composition in the finally precipitated chemical garden structures. The present research not only reconfirms the potential of fabricating gradient composites through the self-organized chemical garden approach but also demonstrates the attractive achievements of XRF movies. It has been demonstrated that the XRF movie is an indispensable realtime characterization technique for the study of chemical garden reactions or even other related diffusions.
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Affiliation(s)
- Wenyang Zhao
- University
of Tsukuba, 1-1-1, Tennodai, Tsukuba, Ibaraki 305-0006, Japan
- National
Institute for Materials Science, 1-2-1, Sengen, Tsukuba, Ibaraki 305-0047, Japan
| | - Kenji Sakurai
- University
of Tsukuba, 1-1-1, Tennodai, Tsukuba, Ibaraki 305-0006, Japan
- National
Institute for Materials Science, 1-2-1, Sengen, Tsukuba, Ibaraki 305-0047, Japan
- E-mail: ,
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15
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Zhao W, Sakurai K. CCD camera as feasible large-area-size x-ray detector for x-ray fluorescence spectroscopy and imaging. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2017; 88:063703. [PMID: 28667985 DOI: 10.1063/1.4985149] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
As X-ray fluorescence radiation isotropically spreads from the sample, one of the most important requirements for spectrometers for many years has been a large solid angle. Charge-coupled device (CCD) cameras are quite promising options because they have a fairly large area size, usually larger than 150 mm2. The present work has examined the feasibility of a commercially available camera with an ordinary CCD chip (1024 × 1024 pixels, the size of one pixel is 13 μm × 13 μm, designed for visible light) as an X-ray fluorescence detector. As X-ray photons create charges in the CCD chip, reading very quickly the amount is the key for this method. It is very simple if the charges always go into one pixel. As the charges quite often spread to several pixels, and sometimes can be lost, it is important to recover the information by filtering out the unsuccessful events. For this, a simple, versatile, and reliable scheme has been proposed. It has been demonstrated that the energy resolution of the present camera is 150 eV at Mn Kα, and also that its overall achievement in seeing minor elements is almost compatible with conventional X-ray fluorescence detectors. When the CCD camera is combined with a micro-pinhole collimator, full field X-ray fluorescence imaging with a spatial resolution of 20 μm becomes possible. Further feasibility in practical X-ray fluorescence analysis is discussed.
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Affiliation(s)
- Wenyang Zhao
- Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1, Tennodai, Tsukuba, Ibaraki 305-0006, Japan and National Institute for Materials Science, 1-2-1, Sengen, Tsukuba, Ibaraki 305-0047, Japan
| | - Kenji Sakurai
- Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1, Tennodai, Tsukuba, Ibaraki 305-0006, Japan and National Institute for Materials Science, 1-2-1, Sengen, Tsukuba, Ibaraki 305-0047, Japan
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16
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Zhao W, Sakurai K. Seeing elements by visible-light digital camera. Sci Rep 2017; 7:45472. [PMID: 28361916 PMCID: PMC5374443 DOI: 10.1038/srep45472] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Accepted: 02/28/2017] [Indexed: 11/26/2022] Open
Abstract
A visible-light digital camera is used for taking ordinary photos, but with new operational procedures it can measure the photon energy in the X-ray wavelength region and therefore see chemical elements. This report describes how one can observe X-rays by means of such an ordinary camera - The front cover of the camera is replaced by an opaque X-ray window to block visible light and to allow X-rays to pass; the camera takes many snap shots (called single-photon-counting mode) to record every photon event individually; an integrated-filtering method is newly proposed to correctly retrieve the energy of photons from raw camera images. Finally, the retrieved X-ray energy-dispersive spectra show fine energy resolution and great accuracy in energy calibration, and therefore the visible-light digital camera can be applied to routine X-ray fluorescence measurement to analyze the element composition in unknown samples. In addition, the visible-light digital camera is promising in that it could serve as a position sensitive X-ray energy detector. It may become able to measure the element map or chemical diffusion in a multi-element system if it is fabricated with external X-ray optic devices. Owing to the camera’s low expense and fine pixel size, the present method will be widely applied to the analysis of chemical elements as well as imaging.
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Affiliation(s)
- Wenyang Zhao
- University of Tsukuba, 1-1-1, Tennodai, Tsukuba, Ibaraki, 305-0006, Japan.,National Institute for Materials Science, 1-2-1, Sengen, Tsukuba, Ibaraki, 305-0047, Japan
| | - Kenji Sakurai
- University of Tsukuba, 1-1-1, Tennodai, Tsukuba, Ibaraki, 305-0006, Japan.,National Institute for Materials Science, 1-2-1, Sengen, Tsukuba, Ibaraki, 305-0047, Japan
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17
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Tack P, Vekemans B, Laforce B, Rudloff-Grund J, Hernández WY, Garrevoet J, Falkenberg G, Brenker F, Van Der Voort P, Vincze L. Application toward Confocal Full-Field Microscopic X-ray Absorption Near Edge Structure Spectroscopy. Anal Chem 2017; 89:2123-2130. [PMID: 28208240 DOI: 10.1021/acs.analchem.6b04828] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Using X-ray absorption near edge structure (XANES) spectroscopy, information on the local chemical structure and oxidation state of an element of interest can be acquired. Conventionally, this information can be obtained in a spatially resolved manner by scanning a sample through a focused X-ray beam. Recently, full-field methods have been developed to obtain direct 2D chemical state information by imaging a large sample area. These methods are usually in transmission mode, thus restricting the use to thin and transmitting samples. Here, a fluorescence method is displayed using an energy-dispersive pnCCD detector, the SLcam, characterized by measurement times far superior to what is generally applicable. Additionally, this method operates in confocal mode, thus providing direct 3D spatially resolved chemical state information from a selected subvolume of a sample, without the need of rotating a sample. The method is applied to two samples: a gold-supported magnesia catalyst (Au/MgO) and a natural diamond containing Fe-rich inclusions. Both samples provide XANES spectra that can be overlapped with reference XANES spectra, allowing this method to be used for fingerprinting and linear combination analysis of known XANES reference compounds.
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Affiliation(s)
- Pieter Tack
- XMI, Department of Analytical Chemisty, Ghent University , Krijgslaan 281 S12, 9000 Ghent, Belgium
| | - Bart Vekemans
- XMI, Department of Analytical Chemisty, Ghent University , Krijgslaan 281 S12, 9000 Ghent, Belgium
| | - Brecht Laforce
- XMI, Department of Analytical Chemisty, Ghent University , Krijgslaan 281 S12, 9000 Ghent, Belgium
| | - Jennifer Rudloff-Grund
- Geoscience Institute-Mineralogy, Goethe University , Altenhöferallee 1, 60438 Frankfurt, Germany
| | - Willinton Y Hernández
- Comoc, Department of Inorganic and Physical Chemistry, Ghent University , Krijgslaan 281 S3, 9000 Ghent, Belgium
| | - Jan Garrevoet
- Deutsch Elektronen Synchrotron DESY, Photon Science , Notkestr 85, D-22603 Hamburg, Germany
| | - Gerald Falkenberg
- Deutsch Elektronen Synchrotron DESY, Photon Science , Notkestr 85, D-22603 Hamburg, Germany
| | - Frank Brenker
- Geoscience Institute-Mineralogy, Goethe University , Altenhöferallee 1, 60438 Frankfurt, Germany
| | - Pascal Van Der Voort
- Comoc, Department of Inorganic and Physical Chemistry, Ghent University , Krijgslaan 281 S3, 9000 Ghent, Belgium
| | - Laszlo Vincze
- XMI, Department of Analytical Chemisty, Ghent University , Krijgslaan 281 S12, 9000 Ghent, Belgium
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18
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Baumann J, Herzog C, Spanier M, Grötzsch D, Lühl L, Witte K, Jonas A, Günther S, Förste F, Hartmann R, Huth M, Kalok D, Steigenhöfer D, Krämer M, Holz T, Dietsch R, Strüder L, Kanngießer B, Mantouvalou I. Laboratory Setup for Scanning-Free Grazing Emission X-ray Fluorescence. Anal Chem 2017; 89:1965-1971. [PMID: 28105807 DOI: 10.1021/acs.analchem.6b04449] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Grazing incidence and grazing emission X-ray fluorescence spectroscopy (GI/GE-XRF) are techniques that enable nondestructive, quantitative analysis of elemental depth profiles with a resolution in the nanometer regime. A laboratory setup for soft X-ray GEXRF measurements is presented. Reasonable measurement times could be achieved by combining a highly brilliant laser produced plasma (LPP) source with a scanning-free GEXRF setup, providing a large solid angle of detection. The detector, a pnCCD, was operated in a single photon counting mode in order to utilize its energy dispersive properties. GEXRF profiles of the Ni-Lα,β line of a nickel-carbon multilayer sample, which displays a lateral (bi)layer thickness gradient, were recorded at several positions. Simulations of theoretical profiles predicted a prominent intensity minimum at grazing emission angles between 5° and 12°, depending strongly on the bilayer thickness of the sample. This information was used to retrieve the bilayer thickness gradient. The results are in good agreement with values obtained by X-ray reflectometry, conventional X-ray fluorescence and transmission electron microscopy measurements and serve as proof-of-principle for the realized GEXRF setup. The presented work demonstrates the potential of nanometer resolved elemental depth profiling in the soft X-ray range with a laboratory source, opening, for example, the possibility of in-line or even in situ process control in semiconductor industry.
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Affiliation(s)
- J Baumann
- Technical University of Berlin , Institute of Optics and Atomic Physics, Hardenbergstraße 36, D-10587 Berlin, Germany.,Humboldt University of Berlin , School of Analytical Sciences Adlershof (IRIS-Building), Unter den Linden 6, D-10099 Berlin, Germany
| | - C Herzog
- Technical University of Berlin , Institute of Optics and Atomic Physics, Hardenbergstraße 36, D-10587 Berlin, Germany
| | - M Spanier
- Technical University of Berlin , Institute of Optics and Atomic Physics, Hardenbergstraße 36, D-10587 Berlin, Germany
| | - D Grötzsch
- Technical University of Berlin , Institute of Optics and Atomic Physics, Hardenbergstraße 36, D-10587 Berlin, Germany
| | - L Lühl
- Technical University of Berlin , Institute of Optics and Atomic Physics, Hardenbergstraße 36, D-10587 Berlin, Germany
| | - K Witte
- Technical University of Berlin , Institute of Optics and Atomic Physics, Hardenbergstraße 36, D-10587 Berlin, Germany
| | - A Jonas
- Technical University of Berlin , Institute of Optics and Atomic Physics, Hardenbergstraße 36, D-10587 Berlin, Germany
| | - S Günther
- Technical University of Berlin , Institute of Optics and Atomic Physics, Hardenbergstraße 36, D-10587 Berlin, Germany
| | - F Förste
- Technical University of Berlin , Institute of Optics and Atomic Physics, Hardenbergstraße 36, D-10587 Berlin, Germany
| | - R Hartmann
- PNSensor GmbH , Otto-Hahn-Ring 6, D-81739 München, Germany
| | - M Huth
- PNSensor GmbH , Otto-Hahn-Ring 6, D-81739 München, Germany
| | - D Kalok
- PNSensor GmbH , Otto-Hahn-Ring 6, D-81739 München, Germany
| | - D Steigenhöfer
- PNSensor GmbH , Otto-Hahn-Ring 6, D-81739 München, Germany
| | - M Krämer
- AXO DRESDEN GmbH , Gasanstaltstraße 8b, D-01237 Dresden, Germany
| | - T Holz
- AXO DRESDEN GmbH , Gasanstaltstraße 8b, D-01237 Dresden, Germany
| | - R Dietsch
- AXO DRESDEN GmbH , Gasanstaltstraße 8b, D-01237 Dresden, Germany
| | - L Strüder
- PNSensor GmbH , Otto-Hahn-Ring 6, D-81739 München, Germany.,University of Siegen , Department of Physics, Walter-Flex-Straße 3, D-57068 Siegen, Germany
| | - B Kanngießer
- Technical University of Berlin , Institute of Optics and Atomic Physics, Hardenbergstraße 36, D-10587 Berlin, Germany
| | - I Mantouvalou
- Technical University of Berlin , Institute of Optics and Atomic Physics, Hardenbergstraße 36, D-10587 Berlin, Germany
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19
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Rauwolf M, Turyanskaya A, Roschger A, Prost J, Simon R, Scharf O, Radtke M, Schoonjans T, Guilherme Buzanich A, Klaushofer K, Wobrauschek P, Hofstaetter JG, Roschger P, Streli C. Synchrotron radiation micro X-ray fluorescence spectroscopy of thin structures in bone samples: comparison of confocal and color X-ray camera setups. JOURNAL OF SYNCHROTRON RADIATION 2017; 24:307-311. [PMID: 28009572 PMCID: PMC5182026 DOI: 10.1107/s1600577516017057] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Accepted: 10/24/2016] [Indexed: 06/06/2023]
Abstract
In the quest for finding the ideal synchrotron-radiation-induced imaging method for the investigation of trace element distributions in human bone samples, experiments were performed using both a scanning confocal synchrotron radiation micro X-ray fluorescence (SR-µXRF) (FLUO beamline at ANKA) setup and a full-field color X-ray camera (BAMline at BESSY-II) setup. As zinc is a trace element of special interest in bone, the setups were optimized for its detection. The setups were compared with respect to count rate, required measurement time and spatial resolution. It was demonstrated that the ideal method depends on the element of interest. Although for Ca (a major constituent of the bone with a low energy of 3.69 keV for its Kα XRF line) the color X-ray camera provided a higher resolution in the plane, for Zn (a trace element in bone) only the confocal SR-µXRF setup was able to sufficiently image the distribution.
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Affiliation(s)
| | | | - A. Roschger
- Ludwig Boltzmann Institute of Osteology at the Hanusch Hospital of WGKK and AUVA Trauma Centre Meidling, Vienna, Austria
| | - J. Prost
- Atominstitut, TU Wien, Vienna, Austria
| | - R. Simon
- Forschungszentrum Karlsruhe/KIT, Institute for Synchrotron Radiation, ANKA, Karlsruhe, Germany
| | - O. Scharf
- IFG Institute of Scientific Instruments GmbH, Berlin, Germany
| | - M. Radtke
- Department of Analytical Chemistry, Bundesanstalt fuer Materialforschung und -pruefung, Berlin, Germany
| | - T. Schoonjans
- Department of Analytical Chemistry, Bundesanstalt fuer Materialforschung und -pruefung, Berlin, Germany
| | - A. Guilherme Buzanich
- Department of Analytical Chemistry, Bundesanstalt fuer Materialforschung und -pruefung, Berlin, Germany
| | - K. Klaushofer
- Ludwig Boltzmann Institute of Osteology at the Hanusch Hospital of WGKK and AUVA Trauma Centre Meidling, Vienna, Austria
| | | | - J. G. Hofstaetter
- Ludwig Boltzmann Institute of Osteology at the Hanusch Hospital of WGKK and AUVA Trauma Centre Meidling, Vienna, Austria
- Orthopaedic Hospital Vienna-Speising, Vienna, Austria
| | - P. Roschger
- Ludwig Boltzmann Institute of Osteology at the Hanusch Hospital of WGKK and AUVA Trauma Centre Meidling, Vienna, Austria
| | - C. Streli
- Atominstitut, TU Wien, Vienna, Austria
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20
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Boesenberg U, Ryan CG, Kirkham R, Siddons DP, Alfeld M, Garrevoet J, Núñez T, Claussen T, Kracht T, Falkenberg G. Fast X-ray microfluorescence imaging with submicrometer-resolution integrating a Maia detector at beamline P06 at PETRA III. JOURNAL OF SYNCHROTRON RADIATION 2016; 23:1550-1560. [PMID: 27787262 DOI: 10.1107/s1600577516015289] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Accepted: 09/28/2016] [Indexed: 05/20/2023]
Abstract
The high brilliance of third-generation synchrotron sources increases the demand for faster detectors to utilize the available flux. The Maia detector is an advanced imaging scheme for energy-dispersive detection realising dwell times per image-pixel as low as 50 µs and count rates higher than 10 × 106 s-1. In this article the integration of such a Maia detector in the Microprobe setup of beamline P06 at the storage ring PETRA III at the Deutsches Elektronen-Synchrotron (DESY) in Hamburg, Germany, is described. The analytical performance of the complete system in terms of rate-dependent energy resolution, scanning-speed-dependent spatial resolution and lower limits of detection is characterized. The potential of the Maia-based setup is demonstrated by key applications from materials science and chemistry, as well as environmental science with geological applications and biological questions that have been investigated at the P06 beamline.
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Affiliation(s)
- Ulrike Boesenberg
- Deutsches Elektronen Synchrotron (DESY), Notkestrasse 85, 22607 Hamburg, Germany
| | - Christopher G Ryan
- Commonwealth Scientific and Industrial Research Organisation (CSIRO), Clayton, Victoria, Australia
| | - Robin Kirkham
- Commonwealth Scientific and Industrial Research Organisation (CSIRO), Clayton, Victoria, Australia
| | | | - Matthias Alfeld
- Deutsches Elektronen Synchrotron (DESY), Notkestrasse 85, 22607 Hamburg, Germany
| | - Jan Garrevoet
- Deutsches Elektronen Synchrotron (DESY), Notkestrasse 85, 22607 Hamburg, Germany
| | - Teresa Núñez
- Deutsches Elektronen Synchrotron (DESY), Notkestrasse 85, 22607 Hamburg, Germany
| | - Thorsten Claussen
- Deutsches Elektronen Synchrotron (DESY), Notkestrasse 85, 22607 Hamburg, Germany
| | - Thorsten Kracht
- Deutsches Elektronen Synchrotron (DESY), Notkestrasse 85, 22607 Hamburg, Germany
| | - Gerald Falkenberg
- Deutsches Elektronen Synchrotron (DESY), Notkestrasse 85, 22607 Hamburg, Germany
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21
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Romano FP, Caliri C, Cosentino L, Gammino S, Mascali D, Pappalardo L, Rizzo F, Scharf O, Santos HC. Micro X-ray Fluorescence Imaging in a Tabletop Full Field-X-ray Fluorescence Instrument and in a Full Field-Particle Induced X-ray Emission End Station. Anal Chem 2016; 88:9873-9880. [DOI: 10.1021/acs.analchem.6b02811] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Francesco Paolo Romano
- CNR, Istituto per i Beni Archeologici e Monumentali, Via Biblioteca
4, 95124 Catania, Italy
- INFN, Laboratori Nazionali del Sud, Via Santa Sofia 62, 95123, Catania, Italy
| | - Claudia Caliri
- INFN, Laboratori Nazionali del Sud, Via Santa Sofia 62, 95123, Catania, Italy
- Università di Catania, Dipartimento di Fisica e Astronomia, Via A. Doria 6, 95123, Catania, Italy
| | - Luigi Cosentino
- INFN, Laboratori Nazionali del Sud, Via Santa Sofia 62, 95123, Catania, Italy
| | - Santo Gammino
- INFN, Laboratori Nazionali del Sud, Via Santa Sofia 62, 95123, Catania, Italy
| | - David Mascali
- INFN, Laboratori Nazionali del Sud, Via Santa Sofia 62, 95123, Catania, Italy
| | - Lighea Pappalardo
- CNR, Istituto per i Beni Archeologici e Monumentali, Via Biblioteca
4, 95124 Catania, Italy
- INFN, Laboratori Nazionali del Sud, Via Santa Sofia 62, 95123, Catania, Italy
| | - Francesca Rizzo
- INFN, Laboratori Nazionali del Sud, Via Santa Sofia 62, 95123, Catania, Italy
- Università di Catania, Dipartimento di Fisica e Astronomia, Via A. Doria 6, 95123, Catania, Italy
| | - Oliver Scharf
- IFG Institute for Scientific Instruments GmbH, Rudower Chaussee 29/31, 12489 Berlin, Germany
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22
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Grünewald TA, Rennhofer H, Tack P, Garrevoet J, Wermeille D, Thompson P, Bras W, Vincze L, Lichtenegger HC. Photon Energy Becomes the Third Dimension in Crystallographic Texture Analysis. Angew Chem Int Ed Engl 2016; 55:12190-4. [PMID: 27483396 DOI: 10.1002/anie.201603784] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Revised: 05/31/2016] [Indexed: 02/04/2023]
Abstract
Conventional analysis of the preferred orientation of crystallites (crystallographic texture) involves X-ray diffraction with area detectors and 2D data output. True 3D, spatially resolved information requires sample rotation in the beam, thus changing the probed volume, which introduces signal smearing and precludes the scanning of complex structures. This obstacle has been overcome by energy-dispersive Laue diffraction. A method has been devised to reach a large portion of reciprocal space and translate the X-ray photon energy into the missing third dimension of space. Carbon fibers and lobster exoskeleton as examples of biomineralized tissue have been analyzed. The major potential of this method lies in its "one-shot" nature and the direct 3D information requiring no previous knowledge of the sample. It allows the texture of large samples with complex substructures to be scanned and opens up the conceptual possibility of following texture changes in situ, for example, during crystallization.
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Affiliation(s)
- Tilman A Grünewald
- Institute of Physics and Materials Science, University of Natural Resources and Life Sciences (BOKU), Peter Jordan Strasse 82, 1190, Vienna, Austria
| | - Harald Rennhofer
- Institute of Physics and Materials Science, University of Natural Resources and Life Sciences (BOKU), Peter Jordan Strasse 82, 1190, Vienna, Austria
| | - Pieter Tack
- Department of Analytical Chemistry, Ghent University, Belgium
| | | | - Didier Wermeille
- XMaS-The UK CRG Beamline, ESRF-The European Synchrotron, Grenoble, Cedex 9, France.,Department of Physics, University of Liverpool, UK
| | - Paul Thompson
- XMaS-The UK CRG Beamline, ESRF-The European Synchrotron, Grenoble, Cedex 9, France.,Department of Physics, University of Liverpool, UK
| | - Wim Bras
- DUBBLE@ESRF, Netherlands Organisation for Scientific Research (NWO), Grenoble Cedex 9, France
| | - Laszlo Vincze
- Department of Analytical Chemistry, Ghent University, Belgium
| | - Helga C Lichtenegger
- Institute of Physics and Materials Science, University of Natural Resources and Life Sciences (BOKU), Peter Jordan Strasse 82, 1190, Vienna, Austria.
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23
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Grünewald TA, Rennhofer H, Tack P, Garrevoet J, Wermeille D, Thompson P, Bras W, Vincze L, Lichtenegger HC. Photonenenergie als dritte Dimension bei der Analyse der kristallographischen Textur. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201603784] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Tilman A. Grünewald
- Institut für Physik und Materialwissenschaft; Universität für Bodenkultur Wien (BOKU); Peter Jordan Straße 82 1190 Wien Österreich
| | - Harald Rennhofer
- Institut für Physik und Materialwissenschaft; Universität für Bodenkultur Wien (BOKU); Peter Jordan Straße 82 1190 Wien Österreich
| | - Pieter Tack
- Department of Analytical Chemistry; Ghent University; Belgien
| | - Jan Garrevoet
- Deutsches Elektronen-Synchrotron; Hamburg Deutschland
| | - Didier Wermeille
- XMaS - The UK CRG; ESRF - The European Synchrotron; Grenoble, Cedex9 Fankreich
- Department of Physics; University of Liverpool; Großbritannien
| | - Paul Thompson
- XMaS - The UK CRG; ESRF - The European Synchrotron; Grenoble, Cedex9 Fankreich
- Department of Physics; University of Liverpool; Großbritannien
| | - Wim Bras
- DUBBLE@ESRF; Netherlands Organisation for Scientific Research (NWO); Grenoble Cedex 9 Frankreich
| | - Laszlo Vincze
- Department of Analytical Chemistry; Ghent University; Belgien
| | - Helga C. Lichtenegger
- Institut für Physik und Materialwissenschaft; Universität für Bodenkultur Wien (BOKU); Peter Jordan Straße 82 1190 Wien Österreich
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24
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Buzanich AG, Radtke M, Reinholz U, Riesemeier H, Emmerling F. Time- and spatial-resolved XAFS spectroscopy in a single shot: new analytical possibilities for in situ material characterization. JOURNAL OF SYNCHROTRON RADIATION 2016; 23:769-776. [PMID: 27140157 DOI: 10.1107/s1600577516003969] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Accepted: 03/08/2016] [Indexed: 06/05/2023]
Abstract
A new concept that comprises both time- and lateral-resolved X-ray absorption fine-structure information simultaneously in a single shot is presented. This uncomplicated set-up was tested at the BAMline at BESSY-II (Berlin, Germany). The primary broadband beam was generated by a double multilayer monochromator. The transmitted beam through the sample is diffracted by a convexly bent Si (111) crystal, producing a divergent beam. This, in turn, is collected by either an energy-sensitive area detector, the so-called color X-ray camera, or by an area-sensitive detector based on a CCD camera, in θ-2θ geometry. The first tests were performed with thin metal foils and some iron oxide mixtures. A time resolution of lower than 1 s together with a spatial resolution in one dimension of at least 50 µm is achieved.
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Affiliation(s)
- Ana Guilherme Buzanich
- Federal Institute for Materials Research and Testing (BAM), Division 1.3 Structure Analysis, Richard-Willstaetter-Strasse 11, 12489 Berlin, Germany
| | - Martin Radtke
- Federal Institute for Materials Research and Testing (BAM), Division 1.3 Structure Analysis, Richard-Willstaetter-Strasse 11, 12489 Berlin, Germany
| | - Uwe Reinholz
- Federal Institute for Materials Research and Testing (BAM), Division 1.3 Structure Analysis, Richard-Willstaetter-Strasse 11, 12489 Berlin, Germany
| | - Heinrich Riesemeier
- Federal Institute for Materials Research and Testing (BAM), Division 1.3 Structure Analysis, Richard-Willstaetter-Strasse 11, 12489 Berlin, Germany
| | - Franziska Emmerling
- Federal Institute for Materials Research and Testing (BAM), Division 1.3 Structure Analysis, Richard-Willstaetter-Strasse 11, 12489 Berlin, Germany
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25
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Radtke M, Buzanich G, Guilherme A, Reinholz U, Riesemeier H, Scharf O, Scholz P, Guerra MF. Double Dispersive X-Ray Fluorescence (D 2 XRF) based on an Energy Dispersive pnCCD detector for the detection of platinum in gold. Microchem J 2016. [DOI: 10.1016/j.microc.2015.10.039] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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26
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Egan CK, Jacques SDM, Wilson MD, Veale MC, Seller P, Beale AM, Pattrick RAD, Withers PJ, Cernik RJ. 3D chemical imaging in the laboratory by hyperspectral X-ray computed tomography. Sci Rep 2015; 5:15979. [PMID: 26514938 PMCID: PMC4626840 DOI: 10.1038/srep15979] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Accepted: 10/05/2015] [Indexed: 11/18/2022] Open
Abstract
We report the development of laboratory based hyperspectral X-ray computed tomography which allows the internal elemental chemistry of an object to be reconstructed and visualised in three dimensions. The method employs a spectroscopic X-ray imaging detector with sufficient energy resolution to distinguish individual elemental absorption edges. Elemental distributions can then be made by K-edge subtraction, or alternatively by voxel-wise spectral fitting to give relative atomic concentrations. We demonstrate its application to two material systems: studying the distribution of catalyst material on porous substrates for industrial scale chemical processing; and mapping of minerals and inclusion phases inside a mineralised ore sample. The method makes use of a standard laboratory X-ray source with measurement times similar to that required for conventional computed tomography.
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Affiliation(s)
- C. K. Egan
- School of Materials, University of Manchester, Manchester, UK
| | - S. D. M. Jacques
- School of Materials, University of Manchester, Manchester, UK
- UK Catalysis Hub, Rutherford Appleton Laboratory, Research Complex at Harwell, Didcot, OX11 0FA, UK
| | - M. D. Wilson
- Science and Technology Facilities Council, Rutherford Appleton Laboratory, Harwell, Oxfordshire, UK
| | - M. C. Veale
- Science and Technology Facilities Council, Rutherford Appleton Laboratory, Harwell, Oxfordshire, UK
| | - P. Seller
- Science and Technology Facilities Council, Rutherford Appleton Laboratory, Harwell, Oxfordshire, UK
| | - A. M. Beale
- UK Catalysis Hub, Rutherford Appleton Laboratory, Research Complex at Harwell, Didcot, OX11 0FA, UK
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK
| | - R. A. D. Pattrick
- School of Earth, Atmospheric and Environmental Sciences, University of Manchester, Manchester, UK
| | - P. J. Withers
- School of Materials, University of Manchester, Manchester, UK
| | - R. J. Cernik
- School of Materials, University of Manchester, Manchester, UK
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27
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Non-invasive quantitative micro-PIXE–RBS/EBS/EBS imaging reveals the lost polychromy and gilding of the Neo-Assyrian ivories from the Louvre collection. Talanta 2015; 137:100-8. [DOI: 10.1016/j.talanta.2015.01.029] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Revised: 01/14/2015] [Accepted: 01/22/2015] [Indexed: 11/24/2022]
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28
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Deng B, Du G, Zhou G, Wang Y, Ren Y, Chen R, Sun P, Xie H, Xiao T. 3D elemental sensitive imaging by full-field XFCT. Analyst 2015; 140:3521-5. [PMID: 25834844 DOI: 10.1039/c4an02401j] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
X-ray fluorescence computed tomography (XFCT) is a stimulated emission tomography modality that maps the three-dimensional (3D) distribution of elements. Generally, XFCT is done by scanning a pencil-beam across the sample. This paper presents a feasibility study of full-field XFCT (FF-XFCT) for 3D elemental imaging. The FF-XFCT consists of a pinhole collimator and X-ray imaging detector with no energy resolution. A prototype imaging system was set up at the Shanghai Synchrotron Radiation Facility (SSRF) for imaging the phantom. The first FF-XFCT experimental results are presented. The cadmium (Cd) and iodine (I) distributions were reconstructed. The results demonstrate FF-XFCT is fit for 3D elemental imaging and the sensitivity of FF-XFCT is higher than a conventional CT system.
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Affiliation(s)
- Biao Deng
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Zhangheng Road 239, 201204 Shanghai, China.
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29
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Garrevoet J, Vekemans B, Tack P, De Samber B, Schmitz S, Brenker FE, Falkenberg G, Vincze L. Methodology toward 3D Micro X-ray Fluorescence Imaging Using an Energy Dispersive Charge-Coupled Device Detector. Anal Chem 2014; 86:11826-32. [DOI: 10.1021/ac503410s] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jan Garrevoet
- X-ray
Microspectroscopy and Imaging Research Group (XMI), Department of
Analytical Chemistry, Ghent University, B-9000 Ghent, Belgium
| | - Bart Vekemans
- X-ray
Microspectroscopy and Imaging Research Group (XMI), Department of
Analytical Chemistry, Ghent University, B-9000 Ghent, Belgium
| | - Pieter Tack
- X-ray
Microspectroscopy and Imaging Research Group (XMI), Department of
Analytical Chemistry, Ghent University, B-9000 Ghent, Belgium
| | - Björn De Samber
- X-ray
Microspectroscopy and Imaging Research Group (XMI), Department of
Analytical Chemistry, Ghent University, B-9000 Ghent, Belgium
| | - Sylvia Schmitz
- Geoscience
Institute-Mineralogy, Goethe University, 60323 Frankfurt
am Main, Germany
| | - Frank E. Brenker
- Geoscience
Institute-Mineralogy, Goethe University, 60323 Frankfurt
am Main, Germany
| | - Gerald Falkenberg
- P06,
PETRA III, Deutsches Elektronen-Synchrotron (DESY), 22607 Hamburg, Germany
| | - Laszlo Vincze
- X-ray
Microspectroscopy and Imaging Research Group (XMI), Department of
Analytical Chemistry, Ghent University, B-9000 Ghent, Belgium
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30
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Romano FP, Caliri C, Cosentino L, Gammino S, Giuntini L, Mascali D, Neri L, Pappalardo L, Rizzo F, Taccetti F. Macro and Micro Full Field X-Ray Fluorescence with an X-Ray Pinhole Camera Presenting High Energy and High Spatial Resolution. Anal Chem 2014; 86:10892-9. [DOI: 10.1021/ac503263h] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Francesco Paolo Romano
- CNR, Istituto
per i Beni Archeologici e Monumentali, Via Biblioteca 4, 95124 Catania, Italy
- INFN, Laboratori Nazionali del Sud, Via Santa Sofia 62, 95123, Catania, Italy
| | - Claudia Caliri
- INFN, Laboratori Nazionali del Sud, Via Santa Sofia 62, 95123, Catania, Italy
| | - Luigi Cosentino
- INFN, Laboratori Nazionali del Sud, Via Santa Sofia 62, 95123, Catania, Italy
| | - Santo Gammino
- INFN, Laboratori Nazionali del Sud, Via Santa Sofia 62, 95123, Catania, Italy
| | - Lorenzo Giuntini
- Università di Firenze, Dipartimento di Fisica e Astronomia, Via Sansone 1, 50019, Sesto Fiorentino, Firenze, Italy
| | - David Mascali
- INFN, Laboratori Nazionali del Sud, Via Santa Sofia 62, 95123, Catania, Italy
| | - Lorenzo Neri
- INFN, Laboratori Nazionali del Sud, Via Santa Sofia 62, 95123, Catania, Italy
| | - Lighea Pappalardo
- CNR, Istituto
per i Beni Archeologici e Monumentali, Via Biblioteca 4, 95124 Catania, Italy
- INFN, Laboratori Nazionali del Sud, Via Santa Sofia 62, 95123, Catania, Italy
| | - Francesca Rizzo
- INFN, Laboratori Nazionali del Sud, Via Santa Sofia 62, 95123, Catania, Italy
- Università di Catania, Dipartimento di Fisica e Astronomia, Via A. Doria 6, 95123, Catania, Italy
| | - Francesco Taccetti
- INFN, Sezione di Firenze, Via Sansone 1, 50019, Sesto Fiorentino, Firenze, Italy
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31
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Progress towards five dimensional diffraction imaging of functional materials under process conditions. Coord Chem Rev 2014. [DOI: 10.1016/j.ccr.2014.05.008] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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32
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Tack P, Garrevoet J, Bauters S, Vekemans B, Laforce B, Van Ranst E, Banerjee D, Longo A, Bras W, Vincze L. Full-Field Fluorescence Mode Micro-XANES Imaging Using a Unique Energy Dispersive CCD Detector. Anal Chem 2014; 86:8791-7. [DOI: 10.1021/ac502016b] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Pieter Tack
- X-ray
Microspectroscopy and Imaging Group (XMI), Ghent University, Krijgslaan
281 S12, B-9000 Ghent, Belgium
| | - Jan Garrevoet
- X-ray
Microspectroscopy and Imaging Group (XMI), Ghent University, Krijgslaan
281 S12, B-9000 Ghent, Belgium
| | - Stephen Bauters
- X-ray
Microspectroscopy and Imaging Group (XMI), Ghent University, Krijgslaan
281 S12, B-9000 Ghent, Belgium
| | - Bart Vekemans
- X-ray
Microspectroscopy and Imaging Group (XMI), Ghent University, Krijgslaan
281 S12, B-9000 Ghent, Belgium
| | - Brecht Laforce
- X-ray
Microspectroscopy and Imaging Group (XMI), Ghent University, Krijgslaan
281 S12, B-9000 Ghent, Belgium
| | - Eric Van Ranst
- Department
of Geology and Soil Science (WE13), Ghent University, Krijgslaan
281 S8, B-9000 Ghent, Belgium
| | - Dipanjan Banerjee
- European
Synchrotron Radiation Facility (ESRF), DUBBLE-CRG, FR-38043 Grenoble
Cedex, France
| | - Alessandro Longo
- European
Synchrotron Radiation Facility (ESRF), DUBBLE-CRG, FR-38043 Grenoble
Cedex, France
| | - Wim Bras
- European
Synchrotron Radiation Facility (ESRF), DUBBLE-CRG, FR-38043 Grenoble
Cedex, France
| | - Laszlo Vincze
- X-ray
Microspectroscopy and Imaging Group (XMI), Ghent University, Krijgslaan
281 S12, B-9000 Ghent, Belgium
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33
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Boone MN, Garrevoet J, Tack P, Scharf O, Cormode DP, Van Loo D, Pauwels E, Dierick M, Vincze L, Van Hoorebeke L. High spectral and spatial resolution X-ray transmission radiography and tomography using a Color X-ray Camera. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT 2014; 735:10.1016/j.nima.2013.10.044. [PMID: 24357889 PMCID: PMC3864699 DOI: 10.1016/j.nima.2013.10.044] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
High resolution X-ray radiography and computed tomography are excellent techniques for non-destructive characterization of an object under investigation at a spatial resolution in the micrometer range. However, as the image contrast depends on both chemical composition and material density, no chemical information is obtained from this data. Furthermore, lab-based measurements are affected by the polychromatic X-ray beam, which results in beam hardening effects. New types of X-ray detectors which provide spectral information on the measured X-ray beam can help to overcome these limitations. In this paper, an energy dispersive CCD detector with high spectral resolution is characterized for use in high resolution radiography and tomography, where a focus is put on the experimental conditions and requirements of both measurement techniques.
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Affiliation(s)
- Matthieu N Boone
- Ghent University, Dept. Physics and Astronomy, Proeftuinstraat 86; B-9000 Gent, Belgium
| | - Jan Garrevoet
- Ghent University, Dept. Analytical Chemistry, Krijgslaan 281/S12; B-9000 Gent, Belgium
| | - Pieter Tack
- Ghent University, Dept. Analytical Chemistry, Krijgslaan 281/S12; B-9000 Gent, Belgium
| | - Oliver Scharf
- IfG-Institute for Scientific Instruments GmbH, Rudower Chaussee 29/31; D-12489 Berlin, Germany
| | - David P Cormode
- University of Pennsylvania, Depts. Radiology, Cardiology and Bioengineering, O3400 Spruce St, 1 Silverstein; Philadelphia, PA 19104, USA
| | - Denis Van Loo
- Ghent University, Dept. Physics and Astronomy, Proeftuinstraat 86; B-9000 Gent, Belgium
| | - Elin Pauwels
- Ghent University, Dept. Physics and Astronomy, Proeftuinstraat 86; B-9000 Gent, Belgium
| | - Manuel Dierick
- Ghent University, Dept. Physics and Astronomy, Proeftuinstraat 86; B-9000 Gent, Belgium
| | - Laszlo Vincze
- Ghent University, Dept. Analytical Chemistry, Krijgslaan 281/S12; B-9000 Gent, Belgium
| | - Luc Van Hoorebeke
- Ghent University, Dept. Physics and Astronomy, Proeftuinstraat 86; B-9000 Gent, Belgium
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34
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Brinza L, Schofield PF, Hodson ME, Weller S, Ignatyev K, Geraki K, Quinn PD, Mosselmans JFW. Combining µXANES and µXRD mapping to analyse the heterogeneity in calcium carbonate granules excreted by the earthworm Lumbricus terrestris. JOURNAL OF SYNCHROTRON RADIATION 2014; 21:235-41. [PMID: 24365942 PMCID: PMC3874023 DOI: 10.1107/s160057751303083x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2013] [Accepted: 11/09/2013] [Indexed: 05/28/2023]
Abstract
The use of fluorescence full spectral micro-X-ray absorption near-edge structure (µXANES) mapping is becoming more widespread in the hard energy regime. This experimental method using the Ca K-edge combined with micro-X-ray diffraction (µXRD) mapping of the same sample has been enabled on beamline I18 at Diamond Light Source. This combined approach has been used to probe both long- and short-range order in calcium carbonate granules produced by the earthworm Lumbricus terrestris. In granules produced by earthworms cultured in a control artificial soil, calcite and vaterite are observed in the granules. However, granules produced by earthworms cultivated in the same artificial soil amended with 500 p.p.m. Mg also contain an aragonite. The two techniques, µXRD and µXANES, probe different sample volumes but there is good agreement in the phase maps produced.
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Affiliation(s)
- Loredana Brinza
- Science Division, Diamond Light Source, Harwell Campus, Didcot, Oxon OX11 0DE, UK
| | - Paul F. Schofield
- Mineral and Planetary Sciences Division, Natural History Museum, Cromwell Road, London SW7 5BD, UK
| | - Mark E. Hodson
- Environment Department, University of York, York YO10 5DD, UK
| | - Sophie Weller
- Department of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QR, UK
| | - Konstantin Ignatyev
- Science Division, Diamond Light Source, Harwell Campus, Didcot, Oxon OX11 0DE, UK
| | - Kalotina Geraki
- Science Division, Diamond Light Source, Harwell Campus, Didcot, Oxon OX11 0DE, UK
| | - Paul D. Quinn
- Science Division, Diamond Light Source, Harwell Campus, Didcot, Oxon OX11 0DE, UK
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35
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Abstract
Position resolved structural information from polycrystalline materials is usually obtained via micro beam techniques illuminating only a single spot of the specimen. Multiplexing in reciprocal space is achieved either by the use of an area detector or an energy dispersive device. Alternatively spatial information may be obtained simultaneously from a large part of the sample by using an array of parallel collimators between the sample and a position sensitive detector which suppresses crossfire of radiation scattered at different positions in the sample. With the introduction of an X-ray camera based on an energy resolving area detector (pnCCD) we could combine this with multiplexing in reciprocal space.
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36
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Reiche I, Müller K, Albéric M, Scharf O, Wähning A, Bjeoumikhov A, Radtke M, Simon R. Discovering Vanished Paints and Naturally Formed Gold Nanoparticles on 2800 Years Old Phoenician Ivories Using SR-FF-MicroXRF with the Color X-ray Camera. Anal Chem 2013; 85:5857-66. [DOI: 10.1021/ac4006167] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ina Reiche
- LC2RMF Laboratoire du Centre
de Recherche et de Restauration des Musées de France, UMR 171 CNRS, 14 quai François Mitterrand, 75001
Paris, France
| | - Katharina Müller
- LC2RMF Laboratoire du Centre
de Recherche et de Restauration des Musées de France, UMR 171 CNRS, 14 quai François Mitterrand, 75001
Paris, France
| | - Marie Albéric
- LC2RMF Laboratoire du Centre
de Recherche et de Restauration des Musées de France, UMR 171 CNRS, 14 quai François Mitterrand, 75001
Paris, France
| | - Oliver Scharf
- IAP Institut für Angewandte Photonik e.V., Rudower Chaussee 29/31, 12489
Berlin, Germany
- IfG Institute for Scientific Instruments GmbH, Rudower Chaussee 29/31,
12489 Berlin, Germany
| | - Andrea Wähning
- BLM Badisches Landesmuseum Karlsruhe, Gemälde-Skulpturenwerkstatt, Schloßbezirk
10, 76131 Karlsruhe, Germany
| | - Aniouar Bjeoumikhov
- IfG Institute for Scientific Instruments GmbH, Rudower Chaussee 29/31,
12489 Berlin, Germany
- Institute for Computer Science and Problems of Regional Management, 360000
Nalchik,ul. Inessy Armand 37 A, Kabardino-Balkaria, Russia
| | - Martin Radtke
- BAM Federal Institute for Materials Research and Testing, Richard-Willstätter-Strasse
11, 12489 Berlin, Germany
| | - Rolf Simon
- KIT
Karlsruhe Institute of Technology,
ANKA Synchrotronstrahlungsquelle, Hermann-von-Helmholtz-Platz 1, 76344
Eggenstein-Leopoldshafen, Germany
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37
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Janssens K, Alfeld M, Van der Snickt G, De Nolf W, Vanmeert F, Radepont M, Monico L, Dik J, Cotte M, Falkenberg G, Miliani C, Brunetti BG. The use of synchrotron radiation for the characterization of artists' pigments and paintings. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2013; 6:399-425. [PMID: 23772661 DOI: 10.1146/annurev-anchem-062012-092702] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
We review methods and recent studies in which macroscopic to (sub)microscopic X-ray beams were used for nondestructive analysis and characterization of pigments, paint microsamples, and/or entire paintings. We discuss the use of portable laboratory- and synchrotron-based instrumentation and describe several variants of X-ray fluorescence (XRF) analysis used for elemental analysis and imaging and combined with X-ray diffraction (XRD) and X-ray absorption spectroscopy (XAS). Macroscopic and microscopic (μ-)XRF variants of this method are suitable for visualizing the elemental distribution of key elements in paint multilayers. Technical innovations such as multielement, large-area XRF detectors have enabled such developments. The use of methods limited to elemental analysis or imaging usually is not sufficient to elucidate the chemical transformations that take place during natural pigment alteration processes. However, synchrotron-based combinations of μ-XRF, μ-XAS, and μ-XRD are suitable for such studies.
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Affiliation(s)
- Koen Janssens
- Department of Chemistry, University of Antwerp, 2020 Antwerp, Belgium
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38
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Affiliation(s)
- Kouichi Tsuji
- Department of Applied Chemistry & Bioengineering, Graduate School of Engineering, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka, 558-8585, Japan
| | - Kazuhiko Nakano
- Department of Applied Chemistry & Bioengineering, Graduate School of Engineering, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka, 558-8585, Japan
| | - Yoshio Takahashi
- Department of Earth and Planetary Systems Science, Graduate School of Science, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526, Japan
| | - Kouichi Hayashi
- Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai, 980-8577, Japan
| | - Chul-Un Ro
- Department of Chemistry, Inha University, 253 Yonghyun-dong, Nam-gu, Incheon, 402-751, Korea
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39
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Tsuji K, Ohmori T, Yamaguchi M. Wavelength Dispersive X-ray Fluorescence Imaging. Anal Chem 2011; 83:6389-94. [DOI: 10.1021/ac201395u] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kouichi Tsuji
- Department of Applied Chemistry & Bioengineering, Graduate School of Engineering, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - Takashi Ohmori
- Department of Applied Chemistry & Bioengineering, Graduate School of Engineering, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - Makoto Yamaguchi
- Department of Applied Chemistry & Bioengineering, Graduate School of Engineering, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
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40
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Possibilities of energy-resolved X-ray radiography for the investigation of paintings. Anal Bioanal Chem 2011; 402:1471-80. [DOI: 10.1007/s00216-011-5230-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2011] [Revised: 06/15/2011] [Accepted: 06/30/2011] [Indexed: 10/18/2022]
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