Matches in SemOpenAlex for { <https://semopenalex.org/work/W3215790163> ?p ?o ?g. }
- W3215790163 endingPage "025007" @default.
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- W3215790163 abstract "This paper uses extended-magnetohydrodynamics (MHD) simulations to explore an extreme magnetized plasma regime realisable by cylindrical implosions on the OMEGA laser facility. This regime is characterized by highly compressed magnetic fields (greater than 10~kT across the fuel), which contain a significant proportion of the implosion energy and induce large electrical currents in the plasma. Parameters governing the different magnetization processes such as Ohmic dissipation and suppression of instabilities by magnetic tension are presented, allowing for optimization of experiments to study specific phenomena. For instance, a dopant added to the target gas-fill can enhance magnetic flux compression while enabling spectroscopic diagnosis of the imploding core. In particular, the use of Ar K-shell spectroscopy is investigated by performing detailed non-LTE atomic kinetics and radiative transfer calculations on the MHD data. Direct measurement of the core electron density and temperature would be possible, allowing for both the impact of magnetization on the final temperature and thermal pressure to be obtained. By assuming the magnetic field is frozen into the plasma motion, which is shown to be a good approximation for highly magnetized implosions, spectroscopic diagnosis could be used to estimate which magnetization processes are ruling the implosion dynamics; for example, a relation is given for inferring whether thermally-driven or current-driven transport is dominating." @default.
- W3215790163 created "2021-12-06" @default.
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- W3215790163 date "2022-01-12" @default.
- W3215790163 modified "2023-09-25" @default.
- W3215790163 title "Exploring extreme magnetization phenomena in directly driven imploding cylindrical targets" @default.
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- W3215790163 doi "https://doi.org/10.1088/1361-6587/ac3f25" @default.
- W3215790163 hasPublicationYear "2022" @default.