Applied axial magnetic field effects on laboratory plasma jets: Density hollowing, field compression, and azimuthal rotation
作者： T. Byvank , J. T. Banasek , W. M. Potter , J. B. Greenly , C. E. Seyler
DOI: 10.1063/1.5003777
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摘要: We experimentally measure the effects of an applied axial magnetic field (Bz) on laboratory plasma jets and compare experimental results with numerical simulations using extended magnetohydrodynamics code. A 1 MA peak current, 100 ns rise time pulse power machine is used to generate jet. On application field, we observe on-axis density hollowing a conical formation jet interferometry, compression Bz B-dot probes, azimuthal rotation Thomson scattering. Experimentally, find densities ≲5 × 1017 cm−3 relative ≳3 × 1018 cm−3. For aluminum jets, 6.5 ± 0.5 mm above foil, 1.0 ± 0.1 T total 2.4 ± 0.3 T, while predict 3.4 T at same location. boundary, ion velocities 15–20 km/s, 14 km/s peak. disc...
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