Pulsed-Power Magnetized Jets for the Study of Star Formation

Melean, Raul; Young, Rachel; Klein, S.; Smith, Trevor J.; Dowhan, George V.; Campbell, P. C.; Jordan, Nicholas M.; McBride, R. D.; Kuranz, Carolyn

doi:10.1109/icops37625.2020.9717534

Cited by 1 publication

(1 citation statement)

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“…In addition, when the energy density attained in the shocked region is high, radiative effects can become strong, plasma ionization and electrons can strongly effect transport, and a rich interplay of hot plasma physics and supersonic hydrodynamics can ensue. In recent years, with the increased development of highenergy-density laboratory plasma facilities, some of the these features of the collisional plasma shock can now be more readily observed in the laboratory [2][3][4][5]. It is interesting to ask the question if our theories of collisional plasma shocks, having existed with minor modification for decades, are fully accurate and adequate to explain the range of experiments that are now possible.…”

Section: Introductionmentioning

confidence: 99%

Experimental study of ion heating in obliquely merging hypersonic plasma jets

et al. 2019

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In this experiment, we measure ion temperature evolution of collisional plasma shocks and colliding supersonic plasma flows across a range of species (Ar, Kr, Xe, N), Mach numbers, and collisionalities. Shocks are formed via the collision of discrete plasma jets relevant to plasma-jet-driven magnetoinertial fusion (PJMIF). We observe nearly classical ion shock heating and ion-electron equilibration, with peak temperatures attained consistent with collisional shock heating. We also observe cases where this heating occurs in a smooth merged structure with reduced density gradients due to significant intepenetration of the plasma jets. In application to PJMIF liners, we find that Mach number degradation due to ion shock heating will likely not be significant at the typical full-scale conditions proposed, and that a degree of interpenetration may be an attractive condition for PJMIF and similar approaches which seek to form uniform merged structures from discrete supersonic plasma jets.

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Section: Introductionmentioning

confidence: 99%