Turbulent stagnation in a Z-pinch plasma

E. Kroupp, E. Stambulchik, A. Starobinets, D. Osin, V. I. Fisher, D. Alumot, Y. Maron, S. Davidovits, N. J. Fisch, and A. Fruchtman
Phys. Rev. E 97, 013202 – Published 16 January 2018

Abstract

The ion kinetic energy in a stagnating plasma was previously determined by Kroupp et al. [Phys. Rev. Lett. 107, 105001 (2011)] from Doppler-dominated line shapes 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 nonuniform density distribution. We demonstrate how to reanalyze the spectroscopic data consistent with the turbulent picture and show that this leads to better concordance of the overconstrained spectroscopic measurements, while also substantially lowering the inferred mean density.

  • Figure
  • Figure
  • Received 16 May 2017

DOI:https://doi.org/10.1103/PhysRevE.97.013202

©2018 American Physical Society

Physics Subject Headings (PhySH)

Interdisciplinary PhysicsAtomic, Molecular & OpticalPlasma Physics

Authors & Affiliations

E. Kroupp, E. Stambulchik*, A. Starobinets, D. Osin, V. I. Fisher, D. Alumot, and Y. Maron

  • Faculty of Physics, Weizmann Institute of Science, Rehovot 7610001, Israel

S. Davidovits§ and N. J. Fisch

  • Department of Astrophysical Sciences, Princeton University, Princeton, New Jersey 08540, USA

A. Fruchtman

  • H.I.T.—Holon Institute of Technology, Holon 5810201, Israel

  • *Corresponding author: evgeny.stambulchik@weizmann.ac.il
  • Present address: Tri Alpha Energy Inc, Foothill Ranch, CA, USA.
  • Present address: Applied Materials, Rehovot, Israel.
  • §Corresponding author: sdavidov@princeton.edu

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 97, Iss. 1 — January 2018

Reuse & Permissions
Access Options
CHORUS

Article Available via CHORUS

Download Accepted Manuscript
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review E

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×