The dynamics beamline at SSRF

IF 3.6 1区物理与天体物理 Q1 NUCLEAR SCIENCE & TECHNOLOGY

Nuclear Science and Techniques Pub Date : 2024-08-30 DOI:10.1007/s41365-024-01467-5

Zhen Liu, Li-Hua Wang, Yong Jiang, Ya-Jun Tong, Hua-Chun Zhu, Te Ji, Min Chen, Zheng Jiang, Xiang-Jun Wei

{"title":"The dynamics beamline at SSRF","authors":"Zhen Liu, Li-Hua Wang, Yong Jiang, Ya-Jun Tong, Hua-Chun Zhu, Te Ji, Min Chen, Zheng Jiang, Xiang-Jun Wei","doi":"10.1007/s41365-024-01467-5","DOIUrl":null,"url":null,"abstract":"The dynamics beamline (D-Line), which combines synchrotron radiation infrared spectroscopy (SR-IR) and energy-dispersive X-ray absorption spectroscopy (ED-XAS), is the first beamline in the world to realize concurrent ED-XAS and SR-IR measurements at the same sample position on a millisecond time-resolved scale. This combined technique is effective for investigating rapid structural changes in atoms, electrons, and molecules in complicated disorder systems, such as those used in physics, chemistry, materials science, and extreme conditions. Moreover, ED-XAS and SR-IR can be used independently in the two branches of the D-Line. The ED-XAS branch is the first ED-XAS beamline in China, which uses a tapered undulator light source and can achieve approximately 2.5 × 1012 photons/s·300 eV BW@7.2 keV at the sample position. An exchangeable polychromator operating in the Bragg-reflection or Laue-transmission configuration is used in different energy ranges to satisfy the requirements for beam size and energy resolution. The focused beam size is approximately 3.5 μm (H) × 21.5 μm (V), and the X-ray energy range is 5–25 keV. Using one- and two-dimensional position-sensitive detectors with frame rates of up to 400 kHz enables time resolutions of tens of microseconds to be realized. Several distinctive techniques, such as the concurrent measurement of in situ ED-XAS and infrared spectroscopy, time-resolved ED-XAS, high-pressure ED-XAS, XMCD, and pump-probe ED-XAS, can be applied to achieve different scientific goals.","PeriodicalId":19177,"journal":{"name":"Nuclear Science and Techniques","volume":null,"pages":null},"PeriodicalIF":3.6000,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nuclear Science and Techniques","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1007/s41365-024-01467-5","RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"NUCLEAR SCIENCE & TECHNOLOGY","Score":null,"Total":0}

引用次数: 0

Abstract

The dynamics beamline (D-Line), which combines synchrotron radiation infrared spectroscopy (SR-IR) and energy-dispersive X-ray absorption spectroscopy (ED-XAS), is the first beamline in the world to realize concurrent ED-XAS and SR-IR measurements at the same sample position on a millisecond time-resolved scale. This combined technique is effective for investigating rapid structural changes in atoms, electrons, and molecules in complicated disorder systems, such as those used in physics, chemistry, materials science, and extreme conditions. Moreover, ED-XAS and SR-IR can be used independently in the two branches of the D-Line. The ED-XAS branch is the first ED-XAS beamline in China, which uses a tapered undulator light source and can achieve approximately 2.5 × 10¹² photons/s·300 eV BW@7.2 keV at the sample position. An exchangeable polychromator operating in the Bragg-reflection or Laue-transmission configuration is used in different energy ranges to satisfy the requirements for beam size and energy resolution. The focused beam size is approximately 3.5 μm (H) × 21.5 μm (V), and the X-ray energy range is 5–25 keV. Using one- and two-dimensional position-sensitive detectors with frame rates of up to 400 kHz enables time resolutions of tens of microseconds to be realized. Several distinctive techniques, such as the concurrent measurement of in situ ED-XAS and infrared spectroscopy, time-resolved ED-XAS, high-pressure ED-XAS, XMCD, and pump-probe ED-XAS, can be applied to achieve different scientific goals.

Abstract Image

查看原文本刊更多论文

SSRF 的动力学光束线

动态光束线（D-Line）结合了同步辐射红外光谱（SR-IR）和能量色散 X 射线吸收光谱（ED-XAS），是世界上第一条在同一样品位置同时进行毫秒级时间分辨的 ED-XAS 和 SR-IR 测量的光束线。这种组合技术对于研究复杂无序系统中原子、电子和分子的快速结构变化非常有效，例如物理、化学、材料科学和极端条件下使用的系统。此外，在 D-Line 的两个分支中，ED-XAS 和 SR-IR 可以独立使用。ED-XAS分支是中国第一条ED-XAS光束线，采用锥形起伏器光源，在样品位置可实现约2.5 × 1012光子/秒-300 eV BW@7.2 keV。在不同的能量范围内，使用了以布拉格反射或拉乌透射配置运行的可交换多色器，以满足对光束尺寸和能量分辨率的要求。聚焦光束尺寸约为 3.5 μm (H) × 21.5 μm (V)，X 射线能量范围为 5-25 keV。利用帧频高达 400 kHz 的一维和二维位置敏感探测器，可以实现数十微秒的时间分辨率。可采用多种独特的技术来实现不同的科学目标，如同时测量原位 ED-XAS 和红外光谱、时间分辨 ED-XAS、高压 ED-XAS、XMCD 和泵探针 ED-XAS。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Nuclear Science and Techniques 物理-核科学技术

CiteScore

5.10

自引率

39.30%

发文量

141

审稿时长

5 months

期刊介绍： Nuclear Science and Techniques (NST) reports scientific findings, technical advances and important results in the fields of nuclear science and techniques. The aim of this periodical is to stimulate cross-fertilization of knowledge among scientists and engineers working in the fields of nuclear research. Scope covers the following subjects: • Synchrotron radiation applications, beamline technology; • Accelerator, ray technology and applications; • Nuclear chemistry, radiochemistry, radiopharmaceuticals, nuclear medicine; • Nuclear electronics and instrumentation; • Nuclear physics and interdisciplinary research; • Nuclear energy science and engineering.