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Acta Optica Sinica, Volume. 42, Issue 11, 1134013(2022)

Assessment of Quintuple-Frequency Thomson Scattering on Shenguang-100 kJ Laser Facility

Hang Zhao1, Zhichao Li1, Xin Li2, Yaoyuan Liu1, Tao Gong1, Liang Guo1, Sanwei Li1, Xiaohua Jiang1, Qi Li1, Kaiqiang Pan1, Chaoxin Chen1, Dong Yang1, Yongkun Ding2, and Feng Wang1、*
Author Affiliations
  • 1Laser Fusion Research Center, China Academy of Engineering Physics, Mianyang 621900, Sichuan, China
  • 2Institute of Applied Physics and Computational Mathematics, Beijing 100088, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (13)
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    References (34)
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    Figures & Tables(13)
    Schematic diagram of spectral characteristics of collective Thomson scattering

    Fig. 1. Schematic diagram of spectral characteristics of collective Thomson scattering

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    Schematic diagram of wave vector matching and scattering volume at different scattering angles. (a) Forward scattering; (b) 90° scattering; (c) backward scattering

    Fig. 2. Schematic diagram of wave vector matching and scattering volume at different scattering angles. (a) Forward scattering; (b) 90° scattering; (c) backward scattering

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    Thomson scattering spectrum varying with scattering angle. (a) Blue peak of electron spectrum; (b) red peak of electron spectrum; (c) ion spectrum

    Fig. 3. Thomson scattering spectrum varying with scattering angle. (a) Blue peak of electron spectrum; (b) red peak of electron spectrum; (c) ion spectrum

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    Schematic diagram of background source in Thomson scattering measurement

    Fig. 4. Schematic diagram of background source in Thomson scattering measurement

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    Signal-background comparison of Thomson scattering in full band

    Fig. 5. Signal-background comparison of Thomson scattering in full band

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    Plasma condition at laser entrance hole

    Fig. 6. Plasma condition at laser entrance hole

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    Comparison of Thomson scattering spectra at laser entrance hole. (a) Blue peak signal of quadruple-frequency electron spectrum; (b) blue peak signal of quintuple-frequency electron spectrum; (c) quadruple-frequency ion spectrum signal; (d) quintuple-frequency ion spectrum signal; (e) blue peak signal of quadruple-frequency electron spectrum with background; (f) blue peak signal of quintuple-frequency electron spectrum with background; (g) quadruple-frequency ion spectrum signal with background; (h) quintuple-frequency ion spectrum signal with background

    Fig. 7. Comparison of Thomson scattering spectra at laser entrance hole. (a) Blue peak signal of quadruple-frequency electron spectrum; (b) blue peak signal of quintuple-frequency electron spectrum; (c) quadruple-frequency ion spectrum signal; (d) quintuple-frequency ion spectrum signal; (e) blue peak signal of quadruple-frequency electron spectrum with background; (f) blue peak signal of quintuple-frequency electron spectrum with background; (g) quadruple-frequency ion spectrum signal with background; (h) quintuple-frequency ion spectrum signal with background

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    Contour map of signal-to-background ratio of Thomson scattering ion spectrum. (a) Quadruple-frequency 42° scattering; (b) quadruple-frequency 90° scattering; (c) quadruple-frequency 138° scattering; (d) quintuple-frequency 42° scattering; (e) quintuple-frequency 90° scattering; (f) quintuple-frequency 138° scattering

    Fig. 8. Contour map of signal-to-background ratio of Thomson scattering ion spectrum. (a) Quadruple-frequency 42° scattering; (b) quadruple-frequency 90° scattering; (c) quadruple-frequency 138° scattering; (d) quintuple-frequency 42° scattering; (e) quintuple-frequency 90° scattering; (f) quintuple-frequency 138° scattering

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    Contour map of signal-to-background ratio of blue peak of Thomson scattering electron spectrum. (a) Quadruple-frequency 42° scattering; (b) quadruple-frequency 90° scattering; (c) quadruple-frequency 138° scattering; (d) quintuple-frequency 42° scattering; (e) quintuple-frequency 90° scattering; (f) quintuple-frequency 138° scattering

    Fig. 9. Contour map of signal-to-background ratio of blue peak of Thomson scattering electron spectrum. (a) Quadruple-frequency 42° scattering; (b) quadruple-frequency 90° scattering; (c) quadruple-frequency 138° scattering; (d) quintuple-frequency 42° scattering; (e) quintuple-frequency 90° scattering; (f) quintuple-frequency 138° scattering

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    Plasma condition at hohlraum coronal region

    Fig. 10. Plasma condition at hohlraum coronal region

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    Comparison of Thomson scattering spectra at hohlraum coronal region. (a) Blue peak signal of quadruple-frequency electron spectrum; (b) blue peak signal of quintuple-frequency electron spectrum; (c) quadruple-frequency ion spectrum signal; (d) quintuple-frequency ion spectrum signal; (e) blue peak signal of quadruple-frequency electron spectrum with background; (f) blue peak signal of quintuple-frequency electron spectrum with background; (g) quadruple-frequency ion spectrum signal with background; (h) quintuple-frequency ion spectrum signal with background

    Fig. 11. Comparison of Thomson scattering spectra at hohlraum coronal region. (a) Blue peak signal of quadruple-frequency electron spectrum; (b) blue peak signal of quintuple-frequency electron spectrum; (c) quadruple-frequency ion spectrum signal; (d) quintuple-frequency ion spectrum signal; (e) blue peak signal of quadruple-frequency electron spectrum with background; (f) blue peak signal of quintuple-frequency electron spectrum with background; (g) quadruple-frequency ion spectrum signal with background; (h) quintuple-frequency ion spectrum signal with background

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    Contour map of signal-to-background ratio of blue peak of Thomson scattering electron spectrum at hohlraum coronal region with high Z. (a) Quadruple-frequency 42° scattering; (b) quadruple-frequency 90° scattering; (c) quadruple-frequency 138° scattering; (d) quintuple-frequency 42° scattering; (e) quintuple-frequency 90° scattering; (f) quintuple-frequency 138° scattering

    Fig. 12. Contour map of signal-to-background ratio of blue peak of Thomson scattering electron spectrum at hohlraum coronal region with high Z. (a) Quadruple-frequency 42° scattering; (b) quadruple-frequency 90° scattering; (c) quadruple-frequency 138° scattering; (d) quintuple-frequency 42° scattering; (e) quintuple-frequency 90° scattering; (f) quintuple-frequency 138° scattering

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    • Table 1. Comparison of background intensity in Thomson scattering measurement

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      Table 1. Comparison of background intensity in Thomson scattering measurement

      ProbeBackground sourceIon spectrumRed peak of electron spectrumBlue peak of electron spectrum
      Quadruple frequencyDrive beam★★★★★★★
      Quadruple frequencyBremsstrahlung☆★★★★★
      Quintuple frequencyDrive beam☆★★★★☆
      Quintuple frequencyBremsstrahlung☆★★★★★☆
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    Hang Zhao, Zhichao Li, Xin Li, Yaoyuan Liu, Tao Gong, Liang Guo, Sanwei Li, Xiaohua Jiang, Qi Li, Kaiqiang Pan, Chaoxin Chen, Dong Yang, Yongkun Ding, Feng Wang. Assessment of Quintuple-Frequency Thomson Scattering on Shenguang-100 kJ Laser Facility[J]. Acta Optica Sinica, 2022, 42(11): 1134013

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    Paper Information

    Category: X-Ray Optics

    Received: Feb. 24, 2022

    Accepted: Apr. 15, 2022

    Published Online: Jun. 3, 2022

    The Author Email: Wang Feng (lfrc_wangfeng@163.com)

    DOI:10.3788/AOS202242.1134013

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology