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Title: Turbulent stagnation in a Z -pinch plasma

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. Here, 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.

Authors:
 [1];  [1];  [1];  [2];  [1];  [3];  [1];  [4];  [4];  [5]
  1. Weizmann Institute of Science, Rehovot (Israel)
  2. Weizmann Institute of Science, Rehovot (Israel); Tri Alpha Energy Inc., Foothill Ranch, CA (United States)
  3. Weizmann Institute of Science, Rehovot (Israel); Applied Materials, Rehovot (Israel)
  4. Princeton Univ., Princeton, NJ (United States)
  5. H.I.T. - Holon Institute of Technology, Holon (Israel)
Publication Date:
Research Org.:
Cornell Univ., Ithaca, NY (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1467032
Alternate Identifier(s):
OSTI ID: 1417064
Grant/Contract Number:  
NA0003764; NA0001836; 67350-9960
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review E
Additional Journal Information:
Journal Volume: 97; Journal Issue: 1; Journal ID: ISSN 2470-0045
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY

Citation Formats

Kroupp, E., Stambulchik, Evgeny, Starobinets, A., Osin, D., Fisher, V. I., Alumot, D., Maron, Y., Davidovits, S., Fisch, N. J., and Fruchtman, A. Turbulent stagnation in a Z-pinch plasma. United States: N. p., 2018. Web. doi:10.1103/PhysRevE.97.013202.
Kroupp, E., Stambulchik, Evgeny, Starobinets, A., Osin, D., Fisher, V. I., Alumot, D., Maron, Y., Davidovits, S., Fisch, N. J., & Fruchtman, A. Turbulent stagnation in a Z-pinch plasma. United States. doi:10.1103/PhysRevE.97.013202.
Kroupp, E., Stambulchik, Evgeny, Starobinets, A., Osin, D., Fisher, V. I., Alumot, D., Maron, Y., Davidovits, S., Fisch, N. J., and Fruchtman, A. Tue . "Turbulent stagnation in a Z-pinch plasma". United States. doi:10.1103/PhysRevE.97.013202. https://www.osti.gov/servlets/purl/1467032.
@article{osti_1467032,
title = {Turbulent stagnation in a Z-pinch plasma},
author = {Kroupp, E. and Stambulchik, Evgeny and Starobinets, A. and Osin, D. and Fisher, V. I. and Alumot, D. and Maron, Y. and Davidovits, S. and Fisch, N. J. and Fruchtman, A.},
abstractNote = {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. Here, 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.},
doi = {10.1103/PhysRevE.97.013202},
journal = {Physical Review E},
number = 1,
volume = 97,
place = {United States},
year = {2018},
month = {1}
}

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Cited by: 4 works
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Figures / Tables:

Fig. 1 Fig. 1: 2p2(3P)→1s2p(3P) to 2s2p(3P)→1s2s(3S) intensity ratio (the solid line) and its linear approximation (the dashed line) calculated as a function of ne. Optically thin steady-state plasma with Te = 200 eV is assumed.

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    Works referencing / citing this record:

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