X-Ray Spectrometry最新文献_第3页

Calendar Article 日历文章

IF 1.2 4区物理与天体物理 Q3 SPECTROSCOPY

X-Ray Spectrometry

Pub Date : 2024-02-06 DOI: 10.1002/xrs.3420

Kenji Sakurai

<div><div tabindex="0"><table><thead><tr><th>2024</th><td></td></tr></thead><tbody><tr><td style="background-color:#F2F2F2">January 31–February 2</td><td style="background-color:#F2F2F2">Nano tech 2024 - International Nanotechnology Exhibition & ConferenceTokyo Big Sight, Tokyo, JapanContact: Secretariat of nano tech executive committee c/o JTB Communication Design, Inc. Celestine Shiba Mitsui Building, 3–23-1, Shiba, Minato-ku, Tokyo, Japan 105–8335 Phone: +81-3-5657-0760, Fax:+81-3-5657-0645, nanotech@jtbcom.co.jphttps://www.nanotechexpo.jp/index.html</td></tr><tr><td style="background-color:#F2F2F2">February 26–March 28</td><td style="background-color:#F2F2F2">HERCULES European School - Neutrons & Synchrotron Radiation for Sciencehttps://hercules-school.eu/</td></tr><tr><td style="background-color:#F2F2F2">March 4–8</td><td style="background-color:#F2F2F2">APS March Meeting 2024Minneapolis, MN, USAhttps://www.aps.org/meetings/meeting.cfm?name=MAR24</td></tr><tr><td style="background-color:#F2F2F2">March 17–19</td><td style="background-color:#F2F2F2">Science at FELs conference 2024Synchrotron SOLEIL and Sorbonne University, Francehttps://www.synchrotron-soleil.fr/en/events/sciencefels-2024</td></tr><tr><td style="background-color:#F2F2F2">March 17–21</td><td style="background-color:#F2F2F2">ACS Spring 2024New Orleans, LA, USAhttps://www.acs.org/content/acs/en/meetings/acs-meetings/about/future-meetings.html</td></tr><tr><td style="background-color:#F2F2F2">March 17–22</td><td style="background-color:#F2F2F2">15th Conference of High Resolution X-ray Diffraction and Imaging (XTOP 2024)Carry-le-Rouet, Francehttps://xtop2024.sciencesconf.org/</td></tr><tr><td style="background-color:#F2F2F2">March 24–28</td><td style="background-color:#F2F2F2">2024 Pittsburgh Conference (PITTCON 2024)San Diego, CA, USAhttp://www.pittcon.org/</td></tr><tr><td style="background-color:#F2F2F2">April 15–19</td><td style="background-color:#F2F2F2">ICDD X-ray Fluorescence ClinicICDD Headquarters, Newtown Square, PA, USAhttps://www.icdd.com/xrf/</td></tr><tr><td style="background-color:#F2F2F2">April 22–26</td><td style="background-color:#F2F2F2">Materials Research Society 2024 Spring MeetingSeattle, Washington, USAhttps://www.mrs.org/meetings-events/spring-meetings-exhibits</td></tr><tr><td style="background-color:#F2F2F2">April 22–26</td><td style="background-color:#F2F2F2">2024 International Congress on Emerging Fields and Exploratory Research in Optics and Photonics (OPIC2024)PACIFICO Yokohama, Japanhttps://opicon.jp/</td></tr><tr

2024 年 1 月 31 日-2 月 2 日Nano tech 2024 年国际纳米技术展览会暨会议日本东京有明国际展览中心联系人：JTB Communication Design Inc：纳米技术执行委员会秘书处 c/o JTB Communication Design, Inc.Celestine Shiba Mitsui Building, 3-23-1, Shiba, Minato-ku, Tokyo, Japan 105-8335 电话：+81-3-5657-0760+81-3-5657-0760, Fax:+81-3-5657-0645, nanotech@jtbcom.co.jphttps://www.nanotechexpo.jp/index.htmlFebruary 26-March 28HERCULES European School - Neutrons & Synchrotron Radiation for Sciencehttps://hercules-school.eu/March 4-8APS March Meeting 2024Minneapolis, MN, USAhttps://www.aps.org/meetings/meeting.cfm?name=MAR24March 17-19Science at FELs conference 2024Synchrotron SOLEIL and Sorbonne University, Francehttps://www.synchrotron-soleil.fr/en/events/sciencefels-2024March 17-21ACS Spring 2024New Orleans, LA, USAhttps://www.acs.org/content/acs/en/meetings/acs-meetings/about/future-meetings.htmlMarch 17-2215th Conference of High Resolution X-ray Diffraction and Imaging (XTOP 2024)Carry-le-Rouet, Francehttps://xtop2024.sciencesconf.org/March 24-282024 Pittsburgh Conference (PITTCON 2024)San Diego, CA, USAhttp://www.pittcon.org/April 15-19ICDD X-ray Fluorescence ClinicICDD Headquarters, Newtown Square, PA, USAhttps://www.icdd.com/xrf/April 22-26Materials Research Society 2024 Spring MeetingSeattle, Washington, USAhttps://www.mrs.org/meetings-events/spring-meetings-exhibitsApril 22-262024 International Congress on Emerging Fields and Exploratory Research in Optics and Photonics (OPIC2024)PACIFICO Yokohama, Japanhttps://opicon.jp/April 23-26International Conference on X-ray Optics and Applications (XOPT2024)PACIFICO Yokohama, Japanhttps://xopt.opicon.jp/May 18-2415th International Particle Accelerator Conference (IPAC 2024)Nashville, Tennessee, USAhttps://ipac24.org/June 2-4Lehigh Microscopy SchoolLehigh University, Bethlehem, PA USAhttps://ifmd.lehigh.edu/lehigh-microscopy-schoolJune 3-7ICDD X-ray Diffraction Clinics - Session I - Fundamentals of X-ray Powder DiffractionICDD Headquarters, Newtown Square, PA, USAhttp://www.icdd.com/xrd/June 10-14ICDD X-ray Diffraction Clinics - Session II - Advanced Methods in X-ray Powder DiffractionICDD Headquarters, Newtown Square, PA, USAhttp://www.icdd.com/xrd/June 16-2011th International Conference on Phase Retrieval and Coherent Scattering (Coherence 2024)Hotel Clarion Sea U, Helsingborg, Swedenhttps://indico.maxiv.lu.se/event/5213/June 17-19Science at FELs conference 2024Synchrotron SOLEIL and Sorbonne University, Francehttps://www.synchrotron-soleil.fr/en/events/sciencefels-2024June 20-21Forum on Advanced FEL techniques 2024Synchrotron SOLEIL and Sorbonne University, Francehttps://www.synchrotron-soleil.fr/en/events/sciencefels-2024June 24-28European Conference on X-ray Spectrometry 2024 (EXRS2024)Athens, Greecehttps://exrs2024.demokritos.gr/June 30-July 425th International Workshop on Radiation Imaging DetectorsLisbon, Portugalhttps://indico.cern.ch/event/1284854/July 1-56th International Conference on Tomography of Materials and Structures (ICTMS)Stellenbosch, Sout

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News Article 新闻报道

IF 1.2 4区物理与天体物理 Q3 SPECTROSCOPY

X-Ray Spectrometry

Pub Date : 2024-02-06 DOI: 10.1002/xrs.3419

Kenji Sakurai

First beam at the Japan's new synchrotron (December 7, 2023).

The first beams have been successfully observed at the BL13U and BL10U undulator beamlines of NanoTerasu, Japan's new 3 GeV synchrotron source currently under construction at the Aobayama campus of Tohoku University in Sendai, Japan. The facility is scheduled to officially open in April 2024. For more information, visit the Web page, https://nanoterasu.jp/

日本新同步加速器的第一束光束（2023 年 12 月 7 日）.NanoTerasu 的 BL13U 和 BL10U 波束线成功观测到了第一束光束，这是日本新的 3 GeV 同步辐射源，目前正在日本仙台的东北大学青叶山校区建设。该设施计划于 2024 年 4 月正式启用。欲了解更多信息，请访问网页 https://nanoterasu.jp/。

引用次数: 0

Determination of trace elements in titanium oxides by wavelength dispersive x-ray fluorescence spectrometry (WD-XRF) 利用波长色散 X 射线荧光光谱法（WD-XRF）测定钛氧化物中的痕量元素

IF 1.2 4区物理与天体物理 Q3 SPECTROSCOPY

X-Ray Spectrometry

Pub Date : 2024-02-04 DOI: 10.1002/xrs.3418

M. F. Gazulla, M. Orduña, M. Rodrigo

TiO₂ is used in a great variety of industries (foods, medicines, cosmetics, etc.). In food industry, although the use of TiO₂ as additive was banned by EU in 2022, it is still authorized in medicinal products, and is allowed as food ingredient in US and Canada. Focusing on cosmetics, regulations state some forbidden elements (As, Cd, Ni, Hg, Sb, and Pb), and others allowed with a specific limit (Co, Cr, and Se). Most researches about TiO₂ characterization are focused on the purity determination and no studies analyzing trace metals in this material have been found. Due to the potential impact of those trace elements on health and safety, a robust method for determining them in TiO₂ is required. A methodology for the determination of As, Cd, Co, Cr, Hg, Ni, Pb, Sb, and Se at trace level in TiO₂ by WD-XRF has been developed. Sample was prepared as pressed pellets to achieve low limits required by regulations, and the best conditions were established using n-butyl methacrylate as binder and plastic spatula to avoid Cr contamination coming from the stainless-steel one. An in-depth inquiry conducted to get calibration and validation standards revealed a lack of reference materials; therefore, additions of pure oxides of each element were made to high-purity TiO₂. Validation was performed by two means: analyzing synthetic standards prepared as stated and analyzing two commercial TiO₂ by an independent method (ICP-OES). The developed methodology was suitable to be used as control method to assess whether the materials meet the regulations, since time required to undertake the analysis is much less than other methods.

二氧化钛可用于多种行业（食品、药品、化妆品等）。在食品行业，虽然欧盟在 2022 年禁止将二氧化钛用作添加剂，但它仍被允许用于医药产品，在美国和加拿大也被允许用作食品成分。针对化妆品，法规规定了一些禁止使用的元素（砷、镉、镍、汞、锑和铅），以及其他允许使用但有特定限制的元素（钴、铬和硒）。有关二氧化钛特性的大多数研究都集中在纯度测定方面，尚未发现对这种材料中的痕量金属进行分析的研究。鉴于这些痕量元素对健康和安全的潜在影响，需要一种可靠的方法来测定二氧化钛中的这些元素。我们开发了一种利用 WD-XRF 测定二氧化钛中痕量 As、Cd、Co、Cr、Hg、Ni、Pb、Sb 和 Se 的方法。为了达到法规要求的低限值，样品以压制颗粒的形式制备，并使用甲基丙烯酸正丁酯作为粘合剂和塑料刮刀，以避免不锈钢刮刀污染铬。为获得校准和验证标准，进行了深入调查，发现缺乏参考材料；因此，在高纯度 TiO2 中添加了每种元素的纯氧化物。验证通过两种方法进行：分析如上所述制备的合成标准物质，以及通过独立方法（ICP-OES）分析两种商用二氧化钛。所开发的方法适合用作评估材料是否符合规定的控制方法，因为进行分析所需的时间远远少于其他方法。

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引用次数: 0

Degradation mechanisms of Indian banks promissory notes written in iron-gall inks and its conservation 印度银行用铁球墨水书写的期票的降解机制及其保护

IF 1.2 4区物理与天体物理 Q3 SPECTROSCOPY

X-Ray Spectrometry

Pub Date : 2024-01-10 DOI: 10.1002/xrs.3417

Sarvesh Singh, Manager Rajdeo Singh

The objective of this study is to investigate the deterioration of 18th-century Indian Bank's Promissory Notes written using iron-gall ink. The research employs non-destructive techniques such as Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and scanning electron microscopy (SEM) with energy-dispersive X-ray spectroscopy to analyze the elemental composition and structural characteristics of both the iron-gall ink and the paper support. The analytical findings indicate that the acid hydrolysis of the iron-gall ink complex has led to corrosion and weakening of the document. The reactivity of Fe³⁺ ions, indirectly assessed through XRD analysis by measuring the crystalline index (Crl) of the paper, indicates a loss of strength in the cellulose fibers. The combination of FTIR and XRD data also reveals the utilization of gypsum as a filler in the paper, likely intended to enhance its gloss and opacity. SEM photomicrographs further illustrate the presence of iron crystals on the paper surface, a result of the non-uniform distribution of the ink and oxidation of ferrous ions also supported by surface mapping of iron. The paper's composition is identified as cellulose I, a common variety found in nature. These findings collectively provide insights into the degradation processes affecting both the iron-gall ink and the paper support. The innovative calcium phytate treatment was applied for document conservation.

本研究的目的是调查 18 世纪印度银行使用铁球墨水书写的本票的老化情况。研究采用傅立叶变换红外光谱（FTIR）、X 射线衍射（XRD）和扫描电子显微镜（SEM）与能量色散 X 射线光谱等非破坏性技术，分析铁球墨水和纸张支撑物的元素组成和结构特征。分析结果表明，铁球油墨复合物的酸水解导致了文件的腐蚀和削弱。通过 XRD 分析测量纸张的结晶指数 (Crl)，间接评估了 Fe3+ 离子的反应性，结果表明纤维素纤维的强度有所下降。傅立叶变换红外光谱和 XRD 数据的结合还显示，纸张中使用了石膏作为填料，其目的可能是为了提高纸张的光泽度和不透明度。扫描电镜显微照片进一步说明了纸张表面铁晶体的存在，这是油墨分布不均匀和亚铁离子氧化的结果，也得到了铁表面图谱的支持。纸张的成分被确定为纤维素 I，这是自然界中常见的一种。这些发现共同揭示了影响铁球油墨和纸张支持物的降解过程。创新的植酸钙处理方法被应用于文献保护。

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引用次数: 0

Seeking for non-friendly chemical elements in tabletop sugar and zero to low-calorie sweetener sachets 寻求在桌上糖和零卡路里至低卡路里甜味剂小包中发现非友好化学元素

IF 1.2 4区物理与天体物理 Q3 SPECTROSCOPY

X-Ray Spectrometry

Pub Date : 2024-01-09 DOI: 10.1002/xrs.3416

Hussein Abdul Karim Moussa, Diego Osmar Galeano Espinola, Sandy González Hernández, Marcelo G. Hönnicke

Different tabletop sugar and zero to low-calorie sweetener samples (sachets) of different suppliers, taken randomly, at different cafeterias in Brazil, Argentina, and Paraguay have been selected, for spectroscopy and X-ray diffraction analysis, to figure out if they can present non-friendly components in their composition. Traces of sulfites and aluminosilicates make only 2 out of 16 tabletop sugar sweetener samples safe. On the other hand, traces of sucrose, lactose, sulfites, and aspartame, make only 1 out of 13 tabletop zero to low-calorie sweetener samples, safe.

我们在巴西、阿根廷和巴拉圭的不同自助餐厅随机抽取了不同供应商生产的不同桌面糖和零卡路里至低卡路里甜味剂样品（小袋装），对其进行了光谱和 X 射线衍射分析，以确定它们的成分中是否含有非无害成分。微量亚硫酸盐和铝硅酸盐使 16 个桌面甜味剂样本中只有 2 个是安全的。另一方面，蔗糖、乳糖、亚硫酸盐和阿斯巴甜的痕量则使 13 个零卡路里至低卡路里甜味剂样品中只有 1 个是安全的。

引用次数: 0

Monitoring of toxic metals and metalloids in the urine of non-professional sportsmen using total reflection x-ray fluorescence 利用全反射 X 射线荧光法监测非专业运动员尿液中的有毒金属和类金属

IF 1.2 4区物理与天体物理 Q3 SPECTROSCOPY

X-Ray Spectrometry

Pub Date : 2023-12-26 DOI: 10.1002/xrs.3415

Jasna Jablan, Maja Ortner Hadžiabdić, Ana-Marija Domijan, Suzana Inić, Hagen Stosnach

Exposure to toxic metals and metalloids is a significant public health concern and can seriously affect human health. The aim of this study was to establish the presence of toxic metals and metalloids in the urine of non-professional sportsmen who participated in a mountain ultramarathon using a benchtop total reflection x-ray fluorescence (TXRF) system. TXRF allows for easy and rapid sample preparation and is therefore a potential candidate for simple and cost-effective analysis. In this work, the TXRF-Mo system was used for multielement analysis of the urine samples of 21 non-professional athletes who ran a 53 km mountain ultra-marathon. Urine samples were collected at four time points, at the beginning of the race (pre-race samples), immediately, and 12 and 24 h post-race. Al, As, Ba, Ni, Pb, Rb, Sr, V, and Tl were detected in the collected urine samples. The accuracy and precision of the proposed methods were verified by the analysis of reference materials (Seronorm™ Trace Elements Urine Level 2). The TXRF results were in agreement with the reference values and no significant differences were observed at the 95% confidence level. The detection limits for the elements of interest were also reasonable considering their concentration ranges in real samples. Changes were observed over time with increasing average urinary metals and metalloids levels, but only two significant results, were an increase in As and Rb. The results indicate a high degree of inter-subject variability. The results obtained show that the content of toxic metals and metalloids increases in the urine samples collected after the race, which could confirm the statement that physical activity can increase the excretion of toxic metals and metalloids from the body. The simplicity of the TXRF method as well as its fast performance make it suitable for routine analysis.

接触有毒金属和类金属是一个重大的公共卫生问题，会严重影响人体健康。本研究旨在使用台式全反射 X 射线荧光 (TXRF) 系统确定参加山地超级马拉松的非专业运动员尿液中有毒金属和类金属的含量。TXRF 可以方便快捷地制备样品，因此是进行简单、经济高效分析的潜在候选方法。在这项研究中，我们使用 TXRF-Mo 系统对 21 名参加 53 公里山地超级马拉松比赛的非专业运动员的尿样进行了多元素分析。尿液样本在四个时间点采集，分别是比赛开始时（赛前样本）、比赛开始时、比赛结束后 12 和 24 小时。在采集的尿样中检测到了铝、砷、钡、镍、铅、铷、锶、钒和碲。通过对参考物质（Seronorm™ 痕量元素尿液 2 级）的分析，验证了所建议方法的准确性和精密度。TXRF 结果与参考值一致，在 95% 的置信水平下未发现明显差异。考虑到相关元素在实际样本中的浓度范围，其检测限也是合理的。随着时间的推移，尿液中金属和类金属的平均含量也在增加，但只有两个显著结果，即砷和铷的含量增加。结果表明，受试者之间存在很大的差异性。结果表明，赛后收集的尿样中有毒金属和类金属的含量增加，这可以证实体育锻炼可以增加体内有毒金属和类金属的排泄。TXRF 方法简便、快速，适合用于常规分析。

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引用次数: 0

Calendar Article 日历文章

IF 1.2 4区物理与天体物理 Q3 SPECTROSCOPY

X-Ray Spectrometry

Pub Date : 2023-12-11 DOI: 10.1002/xrs.3414

Kenji Sakurai

<div><div tabindex="0"><table><thead><tr><th style="background-color:#EDEDED">2023</th><td style="background-color:#EDEDED"></td></tr></thead><tbody><tr><td style="background-color:#E2EFD9">November 26–December 1</td><td style="background-color:#E2EFD9">Materials Research Society 2023 Fall MeetingBoston, MA, USAhttps://www.mrs.org/meetings-events/fall-meetings-exhibits/2023-mrs-fall-meeting</td></tr><tr><td style="background-color:#E2EFD9">December 5–8</td><td style="background-color:#E2EFD9">10th Annual Ambient Pressure X-ray Photoelectron Spectroscopy Workshop (APXPS 2023)Chang Yung-Fa Foundation (CYFF) International Convention Center 10F, Taipei, Taiwanhttps://indico.nsrrc.org.tw/event/14/</td></tr></tbody></table></div><div tabindex="0"><table><thead><tr><th style="background-color:#EDEDED">2024</th><td style="background-color:#EDEDED"></td></tr></thead><tbody><tr><td style="background-color:#F2F2F2">January 31–February 2</td><td style="background-color:#F2F2F2">Nano tech 2024 - International Nanotechnology Exhibition & ConferenceTokyo Big Sight, Tokyo, JapanContact: Secretariat of nano tech executive committee c/o JTB Communication Design, Inc. Celestine Shiba Mitsui Building, 3–23-1, Shiba, Minato-ku, Tokyo, Japan 105–8335 Phone: +81-3-5657-0760, Fax:+81-3-5657-0645, nanotech@jtbcom.co.jphttps://www.nanotechexpo.jp/index.html</td></tr><tr><td style="background-color:#F2F2F2">February 26–March 28</td><td style="background-color:#F2F2F2">HERCULES European School - Neutrons & Synchrotron Radiation for Sciencehttps://hercules-school.eu/</td></tr><tr><td style="background-color:#F2F2F2">March 4–8</td><td style="background-color:#F2F2F2">APS March Meeting 2024Minneapolis, MN, USAhttps://www.aps.org/meetings/meeting.cfm?name=MAR24</td></tr><tr><td style="background-color:#F2F2F2">March 17–19</td><td style="background-color:#F2F2F2">Science at FELs conference 2024Synchrotron SOLEIL and Sorbonne University, Francehttps://www.synchrotron-soleil.fr/en/events/sciencefels-2024</td></tr><tr><td style="background-color:#F2F2F2">March 17–21</td><td style="background-color:#F2F2F2">ACS Spring 2024New Orleans, LA, USAhttps://www.acs.org/content/acs/en/meetings/acs-meetings/about/future-meetings.html</td></tr><tr><td style="background-color:#F2F2F2">March 17–22</td><td style="background-color:#F2F2F2">15th Conference of High Resolution X-ray Diffraction and Imaging (XTOP 2024)Carry-le-Rouet, Francehttps://xtop2024.sciencesconf.org/</td></tr><tr><td style="background-color:#F2F2F2">March 24–28</td><td style="background-color:#F2F2F2">2024 Pittsburgh Confere

2023年11月26日-12月1日材料研究学会2023年秋季会议美国马萨诸塞州波士顿https://www.mrs.org/meetings-events/fall-meetings-exhibits/2023-mrs-fall-meetingDecember 5-810年度环境压力X射线光电子能谱研讨会（APXPS 2023）台湾台北张荣发基金会（CYFF）国际会议中心10楼https://indico.nsrrc.org.tw/event/14/2024January 31-2月2日纳米技术2024年国际纳米技术展览会暨会议日本东京有明国际展览中心联系地址：nano tech 执行委员会秘书处 c/o JTB Communication Design, Inc.Celestine Shiba Mitsui Building, 3-23-1, Shiba, Minato-ku, Tokyo, Japan 105-8335 电话：+81-3-5657-0760+81-3-5657-0760, Fax:+81-3-5657-0645, nanotech@jtbcom.co.jphttps://www.nanotechexpo.jp/index.htmlFebruary 26-March 28HERCULES European School - Neutrons & Synchrotron Radiation for Sciencehttps://hercules-school.eu/March 4-8APS March Meeting 2024Minneapolis, MN, USAhttps://www.aps.org/meetings/meeting.cfm?name=MAR24March 17-19Science at FELs conference 2024Synchrotron SOLEIL and Sorbonne University, Francehttps://www.synchrotron-soleil.fr/en/events/sciencefels-2024March 17-21ACS Spring 2024New Orleans, LA, USAhttps://www.acs.org/content/acs/en/meetings/acs-meetings/about/future-meetings.htmlMarch 17-2215th Conference of High Resolution X-ray Diffraction and Imaging (XTOP 2024)Carry-le-Rouet, Francehttps://xtop2024.sciencesconf.org/March 24-282024 Pittsburgh Conference (PITTCON 2024)San Diego, CA, USAhttp://www.pittcon.org/April 15-19ICDD X-ray Fluorescence ClinicICDD Headquarters, Newtown Square, PA, USAhttps://www.icdd.com/xrf/April 22-26Materials Research Society 2024 Spring MeetingSeattle, Washington, USAhttps://www.mrs.org/meetings-events/spring-meetings-exhibitsApril 22-262024 国际光学和光子学新兴领域和探索性研究大会 (OPIC2024)PACIFICO Yokohama, Japanhttps://opicon.jp/April 23-26 国际 X 射线光学和应用大会 (XOPT2024)PACIFICO Yokohama, Japanhttps://xopt.opicon.jp/May 18-2415th International Particle Accelerator Conference (IPAC 2024)Nashville, Tennessee, USAhttps://ipac24.org/June 2-4Lehigh Microscopy SchoolLehigh University, Bethlehem, PA USAhttps://ifmd.lehigh.edu/lehigh-microscopy-schoolJune 3-7ICDD X 射线衍射诊所 - Session I - Fundamentals of X-ray Powder DiffractionICDD Headquarters, Newtown Square, PA, USAhttp://www.icdd.com/xrd/June 10-14ICDD X-ray Diffraction Clinics - Session II - Advanced Methods in X-ray Powder DiffractionICDD Headquarters, Newtown Square, PA, USAhttp://www.icdd.com/xrd/June 16-2011th International Conference on Phase Retrieval and Coherent Scattering (Coherence 2024)Hotel Clarion Sea U, Helsingborg, Swedenhttps://indico.maxiv.lu.se/event/5213/June 17-19Science at FELs conference 2024Synchrotron SOLEIL and Sorbonne University, Francehttps://www.synchrotron-soleil.fr/en/events/sciencefels-2024June 20-21Forum on Advanced FEL techniques 2024Synchrotron SOLEIL and Sorbonne University, Francehttps://www.synchrotron-soleil.fr/en/events/sciencefels-2024June 24-28European Conference on X-ray Spectrometry 2024 (EXRS2024)Athens, Greecehttps://exrs2024.demokritos.gr/June 30-July 425th International Workshop on Radiation Imaging DetectorsLisbon, Portugalhttps://indico.cern.ch/event/1284854/July 1-56th International Conference on

引用次数: 0

News Article 新闻报道

IF 1.2 4区物理与天体物理 Q3 SPECTROSCOPY

X-Ray Spectrometry

Pub Date : 2023-12-11 DOI: 10.1002/xrs.3413

Kenji Sakurai

Denver X-Ray Conference Awards (August 9, 2023)

The following awards were presented during the 72^nd Annual Denver X-Ray Conference, held August 7–11 at The Westin Chicago Lombard, Lombard, Illinois, USA. The Barrett Award, given biennially to recognize the outstanding contributions to the field of powder diffraction, was presented to Dr. Ashfia Huq (Sandia National Laboratories, USA) for her commitment to and leadership in the advancement of spallation neutron powder diffraction, and for her service to the neutron powder diffraction community. The Jenkins Award, given biennially to recognize scientists who exhibit lifetime achievement in the advancement of the use of X-rays in materials analysis, was presented to Dr. Tim Elam (University of Washington, USA) for his contributions to X-ray fluorescence spectrometry in the development of instrumentation and methods of X-ray analyses in challenging environments, including the PIXL micro-XRF spectrometer on the Mars rover Perseverance. The award also recognized his many contributions to educating and teaching others in the field of X-ray spectroscopy. The Hanawalt Award, recognizing distinguished, recent work in the field of powder diffraction, was presented to Dr. Karena Chapman (Stony Brook University, USA) for her contributions in developing X-ray diffraction capabilities in the study of challenging materials problems in sustainable energy and environmental remediation. For more information, visit the Web page, http://www.dxcicdd.com/

丹佛 X 射线会议奖项（2023 年 8 月 9 日）第 72 届丹佛 X 射线会议于 8 月 7 日至 11 日在美国伊利诺伊州伦巴德的芝加哥伦巴德威斯汀酒店举行，会议期间颁发了以下奖项。巴雷特奖（Barrett Award）每两年颁发一次，旨在表彰对粉末衍射领域做出杰出贡献的人员。Ashfia Huq 博士（美国桑迪亚国家实验室）获得该奖，以表彰她在推动溅射中子粉末衍射方面做出的贡献和发挥的领导作用，以及她为中子粉末衍射界提供的服务。詹金斯奖每两年颁发一次，旨在表彰在推动 X 射线在材料分析中的应用方面取得终身成就的科学家。该奖授予了 Tim Elam 博士（美国华盛顿大学），以表彰他对 X 射线荧光光谱法做出的贡献，他开发了在具有挑战性的环境中进行 X 射线分析的仪器和方法，包括 "毅力号 "火星探测器上的 PIXL 微型 XRF 光谱仪。该奖项还表彰了他在 X 射线光谱学领域教育和教学方面做出的诸多贡献。哈纳瓦特奖授予了 Karena Chapman 博士（美国石溪大学），以表彰她在开发 X 射线衍射能力、研究可持续能源和环境修复领域的挑战性材料问题方面做出的贡献。欲了解更多信息，请访问网站 http://www.dxcicdd.com/。

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引用次数: 0

A new compact micro-XRF spectrometer with polychromatic x-ray sample excitation 具有多色x射线样品激发的新型紧凑型微型xrf光谱仪

IF 1.2 4区物理与天体物理 Q3 SPECTROSCOPY

X-Ray Spectrometry

Pub Date : 2023-12-03 DOI: 10.1002/xrs.3412

Peter Wobrauschek, Dieter Ingerle, Josef Prost, Sangita Dhara, Nand Lal Mishra, Michael Iro, Christina Streli

A new compact micro-x-ray fluorescence (μ-XRF) spectrometer covering wide range of elements was developed and fabricated. The working capabilities of this new compact custom-made μ-XRF spectrometer are presented. The spectrometer uses a low power Rh target x-ray tube for sample excitation. Polycapillary optics focuses the polychromatic beam down to 40 μm. The emitted radiation is measured by a peltier 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.

研制了一种新型的紧凑型、覆盖范围广的微x射线荧光(μ-XRF)光谱仪。介绍了该新型小型定制μ-XRF光谱仪的工作性能。该光谱仪采用低功率Rh靶x射线管进行样品激发。多毛细光学将多色光束聚焦到40 μm以下。发射的辐射由一个晶体尺寸为30mm2的peltier冷却硅漂移探测器测量。观察到，多色激发为样品的有效激发提供了足够的光子，从而获得了良好的检测限和面积分辨率。对薄膜样品的检出限与TXRF相当。目前设置的优点是，它适用于特定应用，例如，需要在手套箱或通风柜中采用仪器的放射性和有毒样品，因为它具有良好的分析功能，同时仪器简单紧凑。

引用次数: 0

Nanoscale analysis of magnetic chains consisting of cobalt mesospheres by full‐field transmission x‐ray tomography 由钴介球组成的磁链的纳米级分析

4区物理与天体物理 Q3 SPECTROSCOPY

X-Ray Spectrometry

Pub Date : 2023-10-30 DOI: 10.1002/xrs.3411

Jin Zhang, Chenpeng Zhou, Wanxia Huang, Shanfeng Wang, Yan Wang

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.

全文场透射x射线断层扫描可以获得纳米级材料的三维形态和构型。在本研究中，我们利用钴介球组成的磁链进一步证明了该技术的可行性。本文提供的初步图像清楚地揭示了用于磁链合成的三种类型的钴纳米颗粒，即空心、核壳和固体。此外，层析分析揭示了钴纳米粒子自组装磁链的生长机制。我们可以说，x射线全场透射层析成像的空间分辨率和对比度特性可以满足纳米材料科学的研究要求。因此，透射x射线断层扫描可以成为纳米级材料成像和分析的有力补充方法。

引用次数: 0