X-Ray Spectrometry最新文献

{"title":"A new compact micro-XRF spectrometer with polychromatic x-ray sample excitation","authors":"Peter Wobrauschek, Dieter Ingerle, Josef Prost, Sangita Dhara, Nand Lal Mishra, Michael Iro, Christina Streli","doi":"10.1002/xrs.3412","DOIUrl":"https://doi.org/10.1002/xrs.3412","url":null,"abstract":"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 cooled silicon drift detector of 30 mm² crystal size. It was observed that the polychromatic excitation provides sufficient photons for an efficient excitation of the sample to achieve good detection limit and area resolution. The detection limits are comparable with that one obtained by TXRF for a thin film sample. The advantage of the present setup, is the fact that it is suitable for specific applications for example, for radioactive and toxic samples requiring instrument adoption in glove boxes or fume hoods because of its good analytical features accompanied by simple and compact instrumentation.","PeriodicalId":23867,"journal":{"name":"X-Ray Spectrometry","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2023-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138493784","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nanoscale analysis of magnetic chains consisting of cobalt mesospheres by full‐field transmission x‐ray tomography","authors":"Jin Zhang, Chenpeng Zhou, Wanxia Huang, Shanfeng Wang, Yan Wang","doi":"10.1002/xrs.3411","DOIUrl":"https://doi.org/10.1002/xrs.3411","url":null,"abstract":"Abstract 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 chain synthesis. Furthermore, the tomographic analyses revealed the growth mechanism of magnetic chains self‐assembled by cobalt nanoparticles. We may claim that the spatial resolution and contrast characteristics of the full‐field transmission x‐ray tomography can satisfy the research requirements of nanomaterial science. Hence, transmission x‐ray tomography could be a powerful complementary method for imaging and analysis of nanoscale materials.","PeriodicalId":23867,"journal":{"name":"X-Ray Spectrometry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136019189","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"<scp>IRIS</scp>: A novel integrated instrument for co‐registered <scp>MA‐XRF</scp> mapping and <scp>VNIR‐SWIR</scp> hyperspectral imaging","authors":"Michele Occhipinti, Roberto Alberti, Tommaso Parsani, Claudio Dicorato, Paolo Tirelli, Michele Gironda, Alessandro Tocchio, Tommaso Frizzi","doi":"10.1002/xrs.3405","DOIUrl":"https://doi.org/10.1002/xrs.3405","url":null,"abstract":"Abstract 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 and conservation. Moreover, both techniques enable researchers to reveal fascinating underpaintings, “pentimenti”, or even preparatory drawings offering new details on the creative process of the artist. This background has been a strong motivation for the development of a new multimodal tool for art and conservation: IRIS . IRIS is a mobile and reconfigurable scanner designed to address a wide range of demanding application, exploiting the opportunities given by simultaneous MA‐XRF and hyperspectral reflectance scanning in the visible‐near‐infrared ( VNIR ) and short‐wave‐infrared ( SWIR ) range from 400 to 2500 nm. The system has been designed for in‐situ, fast and non‐invasive scanning of the sample without compromising spectral resolution and high throughput performance. The scanner acquires co‐registered XRF / VNIR‐SWIR data, thus allowing the user to obtain the maximum profit from their possible correlated information: the two techniques can provide enhanced or complementary information on the same spot of analysis with minimum effort in terms of data processing and no need for spatial alignment. In the present work, the qualitative and quantitative performance of IRIS are explored, together with the presentation of in‐lab analysis on reference samples and a brief insight on a real case‐study.","PeriodicalId":23867,"journal":{"name":"X-Ray Spectrometry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136103146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Capillary optics for full‐field x‐ray detectors with a magnification factor of 40 and 2.4 <i>μ</i>m spatial resolution","authors":"Jonathan Kranz, Nico Liebing, Aniouar Bjeoumikhov","doi":"10.1002/xrs.3408","DOIUrl":"https://doi.org/10.1002/xrs.3408","url":null,"abstract":"Abstract 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 μ m 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.","PeriodicalId":23867,"journal":{"name":"X-Ray Spectrometry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135463106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Calendar Article","authors":"Kenji Sakurai","doi":"10.1002/xrs.3409","DOIUrl":"https://doi.org/10.1002/xrs.3409","url":null,"abstract":"19th International Conference on Total Reflection X-ray Fluorescence Analysis and Related Methods (TXRF2023) Clausthal University of Technology, Germany https://www.txrf2023.com/ S4SAS Conference 2023 Diamond Light Source, Oxfordshire, UK https://www.diamond.ac.uk/Home/Events/2023/S4SAS-Workshop-and-Conference.html SXR2023 – Principles of Functionality from Soft X-ray Spectroscopy Magnus-Haus, Berlin-Mitte, Germany https://www.helmholtz-berlin.de/events/sxr/index_en.html 13th International Conference on Instrumental Methods of Analysis (IMA-2023) Chania, Crete, Greece http://aclab.web.auth.gr/ima2023/ XRF user meeting (XRF 2023) Göteborg, Sweden https://www.trollboken.se/xrf ICDD Rietveld Refinement and Indexing ICDD Headquarters, Newtown Square, PA, USA https://www.icdd.com/rietveld/ 19th Biennial International Conference on Accelerator and Large Experimental Physics Control System Conference (ICALEPCS) 2023 Cape Town, South Africa https://icalepcs2023.org/ 2nd international workshop on laboratory-based X-ray spectroscopies for chemical speciation Technische Universität Berlin, Germany https://www.tu.berlin/en/axp/2nd-international-workshop-on-laboratory-based-spectroscopies Hard X-ray imaging of biological soft tissues symposium 2023 The Francis Crick Institute, London, UK https://www.crick.ac.uk/whats-on/hard-x-ray-imaging-of-biological-soft-tissues-symposium-2023 Autonomous Methodologies for Accelerating X-ray Measurements ICDD Headquarters, Newtown Square, PA, USA https://www.icdd.com/icdd-nist-workshop/ 59th Annual Conference on X-Ray Chemical Analysis, Japan Tokyo City University, Tokyo, Japan https://xbun.jsac.jp/conference.html 60th years of Synchrotron Radiation in Japan (JPSR60) Okazaki Conference Center, Japan https://jssrr.smoosy.atlas.jp/en/jpsr60 12th International Conference on Mechanical Engineering Design of Synchrotron Radiation Equipment and Instrumentation (MEDSI2023) Beijing, China https://medsi2023.scimeeting.cn/en/web/index/ Materials Research Society 2023 Fall Meeting Boston, MA, USA https://www.mrs.org/meetings-events/fall-meetings-exhibits/2023-mrs-fall-meeting 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/ 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, [email protected] https://www.nanotechexpo.jp/index.html HERCULES European School - Neutrons & Synchrotron Radiation for Science https://hercules-school.eu/ APS March Meeting 2024 Minneapolis, MN, USA https://www.aps.org/meetings/meeting.cfm?name=MAR24 ACS Spring 2024 New Orleans, LA, USA https://www.acs.org/content/acs/en/meetings/acs-meetings/about/f","PeriodicalId":23867,"journal":{"name":"X-Ray Spectrometry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136184642","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"News Article","authors":"Kenji Sakurai","doi":"10.1002/xrs.3410","DOIUrl":"https://doi.org/10.1002/xrs.3410","url":null,"abstract":"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 with NASA and ESA (for more details, see Daniel Clery, “Revolutionary x-ray sensor to probe workings of black holes and supernovae”, Science, 381, 720–721 (2023). https://doi.org/10.1126/science.adk3474). The X-ray telescope is equipped with a high-energy resolution microcalorimeter detector called Resolve, which is expected to reveal more details about exploding stars, the matter orbiting supermassive black holes, and the merging of galaxy clusters. The detectors appear to be useful not only in such astrophysics, but also in X-ray spectrometry. One of the most important research projects is the precise determination of the fundamental X-ray parameters for many L lines in the soft X-ray region. The research team at NIST in Boulder, Colorado, USA has published a number of papers since 2017 (see, for example, J. W. Fowler et al., “A reassessment of the absolute energies of the x-ray L lines of lanthanide metals”, Metrologia 54, 494 (2017). https://doi.org/10.1088/1681-7575/aa722f, “Absolute energies and emission line shapes of the L x-ray transitions of lanthanide metals”, Metrologia 58, 015016 (2021). https://doi.org/10.1088/1681-7575/abd28a, “Energy Calibration of Nonlinear Microcalorimeters with Uncertainty Estimates from Gaussian Process Regression”, Journal of Low Temperature Physics 209, 1047–1054 (2022). https://doi.org/10.1007/s10909-022-02740-w, “The potential of microcalorimeter X-ray spectrometers for measurement of relative fluorescence-line intensities”, Radiation Physics and Chemistry, 202, 110,487 (2023). https://doi.org/10.1016/j.radphyschem.2022.110487). For more information on recent advances in cryogenic radiation detectors and their applications, see some review articles such as J. Ullom and D. Bennett, “Review of superconducting transition-edge sensors for x-ray and gamma-ray spectroscopy”, Superconducting Science and Technology, 28, 084003 (2015). https://doi.org/10.1088/0953-2048/28/8/084003 and M. Ohkubo, “Advances in superconductor quantum and thermal detectors for analytical instruments”, Journal of Applied Physics. 134, 081101 (2023). https://doi.org/10.1063/5.0151581","PeriodicalId":23867,"journal":{"name":"X-Ray Spectrometry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136184410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Testing and development of hydrogen absorption cell technology","authors":"Isu Ravi","doi":"10.1117/12.2689664","DOIUrl":"https://doi.org/10.1117/12.2689664","url":null,"abstract":"","PeriodicalId":23867,"journal":{"name":"X-Ray Spectrometry","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2023-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82469930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A monte carlo based ray tracing tool for evaluating Wolter-type prescriptions","authors":"Aidan Puno, P. Champey, S. Panini","doi":"10.1117/12.2688789","DOIUrl":"https://doi.org/10.1117/12.2688789","url":null,"abstract":"","PeriodicalId":23867,"journal":{"name":"X-Ray Spectrometry","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2023-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74211295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A field‐based evaluation of portable <scp>XRF</scp> to screen for toxic metals in seafood products","authors":"Austin A. Roberts, Diana Guimarães, Mina W. Tehrani, Shao Lin, Patrick J. Parsons","doi":"10.1002/xrs.3407","DOIUrl":"https://doi.org/10.1002/xrs.3407","url":null,"abstract":"Abstract 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 for toxic elements such as lead (Pb), cadmium (Cd), mercury (Hg), arsenic (As), manganese, (Mn), zinc (Zn), and strontium (Sr). In this study, 23 seafood samples were analyzed using portable XRF in a home setting. After XRF measurements were completed in each home, the same samples were transferred to the laboratory for re‐analysis using microwave‐assisted digestion and Inductively Coupled Plasma Tandem Mass Spectrometry (ICP‐MS/MS). Four elements (Mn, Sr, As, and Zn) were quantifiable by XRF in most samples, and those results were compared to those obtained by ICP‐MS/MS. Agreement was judged reasonable for Mn, Sr, and As, but not for Zn. Discrepancies could be due to (1) the limited time available to prepare field samples for XRF, (2) the heterogeneous nature of “real samples” analyzed by XRF, and (3) the small beam spot size (~1 mm) of the XRF analyzer. Portable XRF is a cost‐effective screening tool for public health investigations involving exposure to toxic metals. It is important for practitioners untrained in XRF spectrometry to (1) recognize the limitations of portable instrumentation, (2) include validation data for each specific analyte(s) measured, and (3) ensure personnel have some training in sample preparation techniques for field‐based XRF analyses.","PeriodicalId":23867,"journal":{"name":"X-Ray Spectrometry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135643992","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The materials and techniques of <i>The Lamentation of Christ</i> (ca. 1460, Mauritshuis), attributed to Rogier van der Weyden and studio: Combining <scp>MA‐XRF</scp>, reflectance imaging spectroscopy and paint cross‐section analysis","authors":"Carol Pottasch, Annelies van Loon, John K. Delaney, Kathryn A. Dooley","doi":"10.1002/xrs.3404","DOIUrl":"https://doi.org/10.1002/xrs.3404","url":null,"abstract":"Abstract 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 support the existing attribution of the painting. The results from a MA‐XRF scanner and two hyperspectral reflectance imaging cameras (400–1000 nm; 967–1680 nm) along with those from the analysis of recent paint cross sections and those collected in the 1980s allowed for a comprehensive understanding of the pigments used and their distribution. In general, the results show that the artist achieved a wide variety of colored draperies (robes) of the figures using a limited palette. High‐quality ultramarine and coarse azurite were identified in the different blue draperies, while azurite was also found combined with red lake and lead white to produce the lilac and purple‐toned fabrics. The green robe contains another copper pigment, verdigris, combined with lead‐tin yellow. The various red draperies show subtle differences in hue, obtained by varying the layer stratigraphy and proportions of lead white, vermilion, and red lake. The chemical maps also provided new insights into the original appearance and modeling of some of the draperies, including the unusual brown dress that was found to contain (partly faded) red lake. Comparison with previous technical studies shows that the materials and elaborate build‐ups used to paint The Lamentation are consistent with other paintings by Rogier van der Weyden and his workshop.","PeriodicalId":23867,"journal":{"name":"X-Ray Spectrometry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135828790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}