Optimization of the x-ray spectrum and radiation symmetry in the hohlraum

ORAL

Abstract

The ultimate goal of laser-driven hohlraum is to create a radiation environment that ablatively implodes a capsule to ignition and burn. To obtain high fusion yield with minimum laser energy, the hohlraum drive must meet both the limited non-Planckian emission (M-band) and excellent uniformity. On the series of Shenguang laser facilities, several experiments have been done to characterize the x-ray spectrum and radiation symmetry of the laser-heated hohlraum. By optimizing the hohlraum structures and materials, the hohlraum performance was improved in flux intensity, symmetry and spectrum.

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Authors

  • Yongkun Ding

    • Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China

  • Shaoen Jiang

    • Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China

  • Shenye Liu

    • Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China

  • Sanwei Li

    • Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China

  • Tianxuan Huang

    • Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China

  • Shiyang Zou

    • Institute of Applied Physics and Computational Mathematics, Beijing 100088, China

  • Ke Lan

    • Institute of Applied Physics and Computational Mathematics, Beijing 100088, China

  • Wenhua Ye

    • Institute of Applied Physics and Computational Mathematics, Beijing 100088, China

  • Yongsheng Li

    • Institute of Applied Physics and Computational Mathematics, Beijing 100088, China

  • Guoli Ren

    • Institute of Applied Physics and Computational Mathematics, Beijing 100088, China

  • Jianfa Gu

    • Institute of Applied Physics and Computational Mathematics, Beijing 100088, China

  • Baohan Zhang

    • Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China

  • Xiaodong Chen

    • Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, China

  • Wenbing Pei

    • Institute of Applied Physics and Computational Mathematics, Beijing 100088, China

  • Shaoping Zhu

    • Institute of Applied Physics and Computational Mathematics, Beijing 100088, China

  • Weiyan Zhang

    • China Academy of Engineering Physics, Mianyang 621900, China