第四代高能同步辐射光源HEPS及高压相关线站建设

李晓东 袁清习 徐伟 郑黎荣

李晓东, 袁清习, 徐伟, 郑黎荣. 第四代高能同步辐射光源HEPS及高压相关线站建设[J]. 高压物理学报, 2020, 34(5): 050101. doi: 10.11858/gywlxb.20200554
引用本文: 李晓东, 袁清习, 徐伟, 郑黎荣. 第四代高能同步辐射光源HEPS及高压相关线站建设[J]. 高压物理学报, 2020, 34(5): 050101. doi: 10.11858/gywlxb.20200554
LI Xiaodong, YUAN Qingxi, XU Wei, ZHENG Lirong. Introduction of Fourth-Generation High Energy Photon Source HEPS and the Beamlines for High-Pressure Research[J]. Chinese Journal of High Pressure Physics, 2020, 34(5): 050101. doi: 10.11858/gywlxb.20200554
Citation: LI Xiaodong, YUAN Qingxi, XU Wei, ZHENG Lirong. Introduction of Fourth-Generation High Energy Photon Source HEPS and the Beamlines for High-Pressure Research[J]. Chinese Journal of High Pressure Physics, 2020, 34(5): 050101. doi: 10.11858/gywlxb.20200554

第四代高能同步辐射光源HEPS及高压相关线站建设

doi: 10.11858/gywlxb.20200554
基金项目: 高能同步辐射光源国家重大科技基础设施项目(发改高技﹝2017﹞2173号)
详细信息
    作者简介:

    李晓东(1975-),男,博士,副研究员,主要从事同步辐射高压实验技术研究. E-mail:lixd@ihep.ac.cn

  • 中图分类号: O434.19; O521.3

Introduction of Fourth-Generation High Energy Photon Source HEPS and the Beamlines for High-Pressure Research

  • 摘要: 作为国家重大科技基础设施“十三五”规划重点建设的项目之一,目前,高能同步辐射光源已经在北京怀柔科学城开始建设,项目目标是建设具有极低发射度、重点覆盖高能区(约300 keV)的第四代同步辐射光源。新的高能光源将为科学研究提供光斑更小、亮度更高、相干性更好的X射线探针。同步辐射光源已经帮助科研人员在高压科学研究的诸多领域取得了丰硕的成果。反过来,应高压研究更高的需求,也在促进同步辐射实验技术的不断发展与进步。本文旨在对高能同步辐射光源首批线站中能够开展高压研究的高压光束线站、吸收谱学线站、高分辨谱学线站和显微成像线站的建设方案进行介绍,一方面有助于用户更好地了解相关设施,另一方面也希望结合用户需求完善后续线站的建设工作,共同推进高压学科在同步辐射领域的发展。

     

  • 图  HEPS一期光束线站布局

    Figure  1.  Beamlines layout of HEPS phase I

    图  线站插入件的亮度谱

    Figure  2.  Brilliance curves of different IDs

    图  高压光束线站光学布局

    Figure  3.  Optical layout of high-pressure beamline

    图  高压光束线站实验平台

    Figure  4.  Schematics of experimental tables

    图  X射线吸收谱学线站的元素覆盖示意图(红色虚线表示K边能量范围,蓝色虚线表示L边能量范围)

    Figure  5.  Schematic of element coverage of XAS (The red and blue dotted lines are energy ranges of K-edge and L-ledge, respectively)

    图  XAS线站光学布局

    Figure  6.  Optical layout of XAS beamline

    图  XAS实验平台

    Figure  7.  Layout of XAS experimental table

    图  硬X射线高分辨谱学线站核共振散射模式的光学布局

    Figure  8.  Optical layout of nuclear resonant scattering of the H2O beamline

    图  硬X射线高分辨谱学线站X射线拉曼散射模式的光学布局

    Figure  9.  Optical layout of X-ray Raman scattering of the H2O beamline

    图  10  核共振散射实验平台

    Figure  10.  Layout of nuclear resonant scattering experimental table

    图  11  X射线拉曼散射实验平台

    Figure  11.  Layout of X-ray Raman scattering experimental table

    图  12  TXM线站光学布局

    Figure  12.  Optical layout of TXM beamline

    图  13  TXM实验平台

    Figure  13.  Layout of TXM experimental table

    表  1  HEPS储存环的主要参数[22]

    Table  1.   Main parameters of the HEPS storage ring[22]

    Energy/
    GeV
    Circumference/
    m
    Number of
    straight sections
    Beam current/
    mA
    Natural emittance/
    pmrad
    InjectionBunch
    number
    61360.44820034.2Top-up680/63
    下载: 导出CSV

    表  2  X射线吸收谱线站的主要设计指标

    Table  2.   Main parameters of XAS beamline

    Energy range/keVEnergy resolution(ΔE/EFlux/(ph·s−1)Spot size /
    (μm × μm)
    Methods
    4.8−452 × 10−4 Si (111)5 × 1013@10 keV (non-focus)0.35 × 0.35 (focus)XAFS/XRD/XRF/FTIR/Mass spectra
    4 × 10−5 Si (311) 5 × 1012@10 keV (focus) 0.35 × 0.35 (focus) Time resolution: 25 ms/spectra
    Detection limit of trace element > 1×10−7
    下载: 导出CSV

    表  3  H2O线站实验方法及技术指标

    Table  3.   Specification of methods at the H2O beamline

    MethodEnergy range/keVEnergy resolution/meVInject modeSpot size/ (μm × μm)Flux/(ph·s−1)
    Nuclear resonant scattering14.4 (57Fe)2,163-bunches2 × 2About 1.5 × 1010
    X-ray Raman scattering10800680-bunches3 × 3About 3 × 1013
    下载: 导出CSV
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出版历程
  • 收稿日期:  2020-04-29
  • 修回日期:  2020-05-12
  • 发布日期:  2020-07-25

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