X-ray emission characteristics in magnetically driven plasma jet experiments on PTS facility

Xu Qiang; Zhou Shaotong; Wang Kun-lun; Zhang Siqun; Cai Hongchun; Ren Xiao; Liu Pan; Huang Xian bin; Zhao Li; Zou Wenkang

doi:10.1063/1.5120256

Volume 5 Issue 1

Jan. 2020

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Article Navigation > Matter and Radiation at Extremes > 2020 > 5(1): 014401

Xu Qiang, Zhou Shaotong, Wang Kun-lun, Zhang Siqun, Cai Hongchun, Ren Xiao, Liu Pan, Huang Xian bin, Zhao Li, Zou Wenkang. X-ray emission characteristics in magnetically driven plasma jet experiments on PTS facility[J]. Matter and Radiation at Extremes, 2020, 5(1): 014401. doi: 10.1063/1.5120256

Citation:

Xu Qiang, Zhou Shaotong, Wang Kun-lun, Zhang Siqun, Cai Hongchun, Ren Xiao, Liu Pan, Huang Xian bin, Zhao Li, Zou Wenkang. X-ray emission characteristics in magnetically driven plasma jet experiments on PTS facility[J]. Matter and Radiation at Extremes, 2020, 5(1): 014401. doi: 10.1063/1.5120256

Citation:

Xu Qiang, Zhou Shaotong, Wang Kun-lun, Zhang Siqun, Cai Hongchun, Ren Xiao, Liu Pan, Huang Xian bin, Zhao Li, Zou Wenkang. X-ray emission characteristics in magnetically driven plasma jet experiments on PTS facility[J]. Matter and Radiation at Extremes, 2020, 5(1): 014401. doi: 10.1063/1.5120256

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X-ray emission characteristics in magnetically driven plasma jet experiments on PTS facility

doi: 10.1063/1.5120256

1.
Key Laboratory of Pulsed Power, Institute of Fluid Physics, China Academy of Engineering Physics, P.O. Box 919-108, Mianyang 621999, China
2.
Southwest University of Science and Technology, Mianyang City, Sichuan Province 621010, China

Received Date: 2019-07-16
Accepted Date: 2019-11-20

Available Online: 2020-01-15

Publish Date: 2020-01-15

Abstract

Abstract

Jets are commonly observed astrophysical phenomena. To study the x-ray emission characteristics of jets, a series of radial foil Z-pinch experiments are carried out on the Primary Test Stand at the Institute of Fluid Physics, China Academy of Engineering Physics. In these experiments, x-ray emission ranging from the soft region (0.1–10 keV) to the hard region (10 keV–500 keV) is observed when the magnetic cavity breaks. The radiation flux of soft x-rays is measured by an x-ray diode and the dose rate of the hard x-rays by an Si-PIN detector. The experimental results indicate that the energy of the soft x-rays is several tens of kilojoules and that of the hard x-rays is ∼200 J. The radiation mechanism of the x-ray emission is briefly analyzed. This analysis indicates that the x-ray energy and the plasma kinetic energy come from the magnetic energy when the magnetic cavity breaks. The soft x-rays are thought to be produced by bremsstrahlung of thermal electrons (∼100 eV), and the hard x-rays by bremsstrahlung of super-hot electrons (∼mega-electron-volt). These results may be helpful to explain the x-ray emission by the jets from young stellar objects.

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References(29)

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