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惯性约束聚变软X射线在线标定系统概念设计

曹磊峰 杨祖华 陈纪辉 魏来 范全平 陈勇 张强强 周维民

曹磊峰, 杨祖华, 陈纪辉, 等. 惯性约束聚变软X射线在线标定系统概念设计[J]. 强激光与粒子束, 2020, 32: 112007. doi: 10.11884/HPLPB202032.200141
引用本文: 曹磊峰, 杨祖华, 陈纪辉, 等. 惯性约束聚变软X射线在线标定系统概念设计[J]. 强激光与粒子束, 2020, 32: 112007. doi: 10.11884/HPLPB202032.200141
Cao Leifeng, Yang Zuhua, Chen Jihui, et al. Conceptual design of soft X-ray online calibration system for ICF[J]. High Power Laser and Particle Beams, 2020, 32: 112007. doi: 10.11884/HPLPB202032.200141
Citation: Cao Leifeng, Yang Zuhua, Chen Jihui, et al. Conceptual design of soft X-ray online calibration system for ICF[J]. High Power Laser and Particle Beams, 2020, 32: 112007. doi: 10.11884/HPLPB202032.200141

惯性约束聚变软X射线在线标定系统概念设计

doi: 10.11884/HPLPB202032.200141
基金项目: 国家重大科技专项项目;国家自然科学基金项目(11375160);国家重大科学仪器设备开发专项项目(2012YQ130125)
详细信息
    作者简介:

    曹磊峰(1967—),男,博士,研究员,从事惯性约束聚变激光等离子体诊断技术研究;leifeng.cao@caep.cn; caoleifeng@sztu.edu.cn

  • 中图分类号: O536;O434.12

Conceptual design of soft X-ray online calibration system for ICF

  • 摘要: 长期以来,惯性约束聚变(ICF)研究软X射线诊断科学仪器设备的元器件标定工作主要依赖同步辐射光源X射线辐射计量站进行。该类装置通常与用于开展ICF研究的大型激光装置分处两地,难以满足ICF研究软X射线元器件实时实地的标定应用需求。另外,由于同步辐射和ICF激光等离子体产生的X射线辐射特性存在较大差异,同步辐射计量站的标定结果事实上也不能完全反映元器件在ICF实验应用中的计量响应特性。本文首先介绍一种基于单光学元件的软X射线紧凑型无谐波光源单色化技术,以此为基础提出研制基于ICF激光等离子体X射线源的同源、同几何位形、双束比较校准的多能量通道光源单色化系统,用于ICF应用软X射线元器件的在线标定。新系统一方面可望满足ICF软X射线元器件实时实地的标定应用需求;另一方面,其提供的标定光束的技术特征将最大可能地接近ICF激光等离子体X射线辐射本身。配备相应的X射线二极管(XRD)和标准探测器之后,该系统将形成一套具有在线自校准功能的新型多通道δ能量响应软X射线能谱仪。
  • 图  1  4B7B光束线布局图

    Figure  1.  Layout of beamline 4B7B

    图  2  单光学元件单色仪布局

    Figure  2.  Layout of single-element monochromator

    图  3  掠入射反射Fresnel波带片的构造方法

    Figure  3.  Method to construct a grazing incidence reflection Fresnel zone plate

    图  4  文献[25]中单级衍射光栅的设计方法

    Figure  4.  Method to construct single-order diffraction grating by Kuang Longyu et al[25]

    图  5  从RZP到SRZP的技术实现方法

    Figure  5.  Method to construct SRZP from an RZP

    图  6  SRZP单色仪对黑体辐射谱的能量响应(设计能点500 eV)

    Figure  6.  Energy response of SRZP monochromator to blackbody radiation spectrum(design energy point 500 eV)

    图  7  多层膜(a)SRZP(b)单色仪配合50 μm厚Ti滤片对200 eV黑体辐射谱的能量响应(c)

    Figure  7.  Energy response of multilayer(a) SRZP monochromator combined with 50 μm thick Ti filter(b) to 200 eV blackbody radiation spectrum(c)

    图  8  基于激光等离子体的两条同源全同单能软X射线光束线布局

    Figure  8.  Layout of two whole-same monochromatic soft X-ray beams from a share laser plasma source

    图  9  神光-III原型装置ICF软X射线元器件在线标定系统概念设计图

    Figure  9.  Conceptual design of on-line calibration system for ICF soft X-ray components for Shenguang-III prototype facility

    图  10  神光-III原型装置ICF软X射线元器件在线标定系统各个通道的能谱特性及分辨水平

    Figure  10.  Energy spectrum characteristics and resolution level of each channel of ICF soft X-ray component online calibration system for Shenguang-III prototype facility

    表  1  一款单元件软X射线单色仪的设计参数

    Table  1.   Design parameters of a single optical element soft X-ray monochromator

    selected energy/
    eV
    object distance/
    mm
    image distance/
    mm
    RZP
    size
    grazing incident
    angle/(°)
    exit angle/
    (°)
    source size
    (HHFW)/μm
    slit width/
    μm
    band width
    E/∆E
    500165059650 mm×10 mm1.34.12001001000
    下载: 导出CSV

    表  2  神光-III原型装置ICF软X射线元器件在线标定系统能点分布

    Table  2.   Energy channel distribution of ICF soft X-ray component online calibration system for Shenguang-III prototype facility

    channel No.energy /eV
    1#/11# 20
    2#/12# 300
    3#/13# 400
    4#/14# 500
    5#/15# 640
    6#/16# 950
    7#/17# 1500
    8#/18# 2500
    9#/19# 4500
    10#/20# 5000
    下载: 导出CSV
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  • 收稿日期:  2020-05-24
  • 修回日期:  2020-07-04
  • 刊出日期:  2020-11-15

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