Acta Optica Sinica, Volume. 42, Issue 11, 1134009(2022)

Progress of Z-Pinch Dynamic Hohlraum Experiments on 8-MA Facility

Qiang Yi1、*, Fan Ye1, Shijian Meng1,2, Jian Lu1, Jianlun Yang1, Qingyuan Hu1, Hongsheng Guo1, Faxin Chen1, Zhanchang Huang1, Shuqing Jiang1, Jiamin Ning1, Xiaosong Yan1, Ruihua Yang1, Rongkun Xu1, Zeping Xu1, and Zhenghong Li1
Author Affiliations
  • 1Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, Sichuan, China
  • 2Institute of Modern Physics, Shanghai EBIT Laboratory, Fudan University, Shanghai 200433, China
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    Figures & Tables(17)
    Radial power and load current waveform of dynamic hohlraum on the 8-MA facility
    Schematics of simulataneous double-energy-region X-ray imaging diagnostic technique. Pinholes without beryllium filters correspond to soft X-ray images (50--400 eV); pinholes with beryllium filters correspond to hard X-ray images (>800 eV)[39]
    Shock wave formation and propagation observed in shot 334[39]. (left) Soft X-ray image; (middle) hard X-ray image, dashed line is the axial diagnostic hole; (right) radial normalized image intensity at different moments
    Hohlraum formation evidence of separation of thermal and shock wave observed in shot 335[39]. (left) Soft and hard X-ray framing images at different moments; (right) radiation brightness temperature versus radial position at different moments, where 3 vertical lines represent positions of main shock wave at different moments
    DH loads with different wire-array diameters
    Axial power comparison for DH loads with different wire-array diameters
    Axial radiation power comparison for DHs at different load heights. (a) Peak-value; (b) rising time
    DH’s end-on radiation brightness temperature comparison for different cases. (a) DHs at different load heights, for convenience to see them clearly, series of h=10 mm are shifted positively by 10 ns; (b) DHs with different bus electrodes structure in 2018 and 2019
    Experimental setup of research on the HXR interference to neutron diagnostic[40]
    Ag AD counts at different radiation fields[40]. (a) DH+capsule at the 8-MA facility; (b) DH at the 8-MA facility; (c) single wire-array at the 8-MA facility; (d) 4 MeV bremsstrahlung X-ray source (Reproduced with permission, Ref. [40])
    Interference of bremsstrahlung HXR to two kinds of neutron detectors. (a) Early intense bremsstrahlung HXR and successive multi pulses observed by BF3 counter[41]; (b) intense bremsstrahlung HXR and successive scintillator afterglow observed by nTOF[40] (Reproduced with permission, Refs. [40] and [41])
    Upgraded nTOF detection system, where LS represents liquid scintillator
    Measured result by upgraded nTOF-2[41](Reproduced with permission, Ref. [41])
    Geometrical setup of FSSR-2D[65]
    Geometrical coordinate representation method during ray tracing simulation
    Simulation results of spectral line profiles
    Reflectivity of spherical mica crystal calculated by XOP code
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    Qiang Yi, Fan Ye, Shijian Meng, Jian Lu, Jianlun Yang, Qingyuan Hu, Hongsheng Guo, Faxin Chen, Zhanchang Huang, Shuqing Jiang, Jiamin Ning, Xiaosong Yan, Ruihua Yang, Rongkun Xu, Zeping Xu, Zhenghong Li. Progress of Z-Pinch Dynamic Hohlraum Experiments on 8-MA Facility[J]. Acta Optica Sinica, 2022, 42(11): 1134009

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    Paper Information

    Category: X-Ray Optics

    Received: Jan. 25, 2022

    Accepted: Feb. 28, 2022

    Published Online: Jun. 3, 2022

    The Author Email: Yi Qiang (yiqiang@caep.cn)

    DOI:10.3788/AOS202242.1134009

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