Turbulent stagnation in a z-pinch plasma
| Autor: | Kroupp, E., Stambulchik, E., Starobinets, A., Osin, D., Fisher, V. I., Alumot, D., Maron, Y., Davidovits, S., Fisch, N. J., Fruchtman, A. |
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| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | Phys. Rev. E 97, 013202 (2018) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevE.97.013202 |
| Popis: | The ion kinetic energy in a stagnating plasma was previously determined by Kroupp et al. (Kroupp et al., 2011), from Doppler-dominated lineshapes augmented by measurements of plasma properties and assuming a uniform-plasma model. Notably, the energy was found to be dominantly stored in hydrodynamic flow. Here, we advance a new description of this stagnation as supersonically turbulent. Such turbulence implies a non-uniform density distribution. We demonstrate how to re-analyze the spectroscopic data consistent with the turbulent picture, and show this leads to better concordance of the overconstrained spectroscopic measurements, while also substantially lowering the inferred mean density. Comment: 6 pages, 2 figures, 1 table |
| Databáze: | arXiv |
| Externí odkaz: |
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