Spectroscopic Determination of Magnetic Fields in Pulsed-Power and High-Energy-Density Plasmas

Maron, Y.; Doron, R.; Cvejić, M.; Stambulchik, E.; Mikitchuk, D.; Stollberg, C.; Queller, T.; Kroupp, E.; Rosenzweig, G.; Rubinstein, B.; Biswas, S.; Bernshtam, V.; Nedostup, O.; Litmanovich, V.; Fisher, V.; Starobinets, A.; Fruchtman, A.; Fisher, A.; Tangri, V.; Giuliani, J. L.; Velikovich, A. L.; Dasgupta, A.; Ochs, I. E.; Kolmes, E. J.; Mlodik, M. E.; Davidovits, S.; Fisch, N. J.; Johnston, M. D.

doi:10.1109/tps.2023.3296561

IEEE Trans. Plasma Sci.

2023

DOI: 10.1109/tps.2023.3296561

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Spectroscopic Determination of Magnetic Fields in Pulsed-Power and High-Energy-Density Plasmas

Y. Maron,

R. Doron,

M. Cvejić

et al.

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2024

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Cited by 2 publications

References 114 publications

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Effects of density distribution on the Stark width and shift of spectral lines in plasma

Stambulchik,

Maron

2024

Journal of Quantitative Spectroscopy and Radiative Transfer

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Effects of density distribution on the Stark width and shift of spectral lines in plasma

Stambulchik,

Maron

2024

Journal of Quantitative Spectroscopy and Radiative Transfer

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Comparison of density profiles measured via laser interferometry with MHD simulations during shock wave reflection on mega-ampere dense plasma focus

Malir,

Klir,

Cikhardt

et al. 2024

Physics of Plasmas

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The analysis of Z-pinch implosion dynamics plays one of the most important roles in the study of pulsed power discharges. At the same time, it is difficult to determine the density distribution together with the current density (current coupling to the imploding layer) to provide more detailed information about the dynamics. Numerical simulations can now provide high-resolution results that are almost unattainable in experiments. The challenge, however, is to obtain reliable results that are close enough to the experimental data to describe individual physical phenomena. In this paper, we show that it is possible to use a combination of experimental data and magnetohydrodynamic (MHD) simulations to verify and identify the physical processes during the stagnation of a Z-pinch. We focus on the analysis of the density profile from experimental data of the mega-ampere plasma focus PF-1000 and its reconstruction using an extended MHD code. Thanks to multi-frame interferometry, we recorded a total of 29 interferometric images of two shots, each in a 200 ns time window around the pinch phase. We were then able to obtain density profiles and observe the reflection of the shock wave from the axis. By the appropriate choice of initial conditions and boundary values in the simulation, we were able to obtain reasonable agreement with the experimental values. We also evaluated the possible shortcomings of the 1D simulation, such as mass loss and current flow at the periphery.

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Spectroscopic Determination of Magnetic Fields in Pulsed-Power and High-Energy-Density Plasmas

Cited by 2 publications

References 114 publications

Effects of density distribution on the Stark width and shift of spectral lines in plasma

Effects of density distribution on the Stark width and shift of spectral lines in plasma

Comparison of density profiles measured via laser interferometry with MHD simulations during shock wave reflection on mega-ampere dense plasma focus

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