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Title: Enhancement of Quasistationary Shocks and Heating via Temporal Staging in a Magnetized Laser-Plasma Jet

Journal Article · · Physical Review Letters
 [1];  [2];  [3];  [4];  [5];  [6];  [7];  [3];  [8];  [9];  [6];  [10];  [8];  [4];  [11];  [12];  [13];  [14];  [8];  [7] more »;  [7];  [15];  [5];  [2];  [3] « less
  1. Ecole Polytechnique Univ. Paris-Saclay, Sorbonne Univ., Palaiseau Cedex (France); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  2. Sorbonne Univ., Paris (France); PSL Research Univ., Paris (France)
  3. Ecole Polytechnique Univ. Paris-Saclay, Sorbonne Univ., Palaiseau Cedex (France); Institute of Applied Physics, Nizhny Novgorod (Russia)
  4. CNRS-UGA-UPS-INSA, Toulouse (France)
  5. Heinrich-Heine-Univ. Dusseldorf, Dusseldorf (Germany)
  6. Queen's Univ. Belfast, Belfast (United Kingdom)
  7. Institute of Applied Physics, Nizhny Novgorod (Russia)
  8. Joint Institute for High Temperatures, Moscow (Russia); National Research Nuclear Univ. "MEPhl", Moscow (Russia)
  9. GSI Helmholtzzentrum fur Schweionenforschung GmbH, Darmstadt (Germany)
  10. INRS-EMT, Varennes, QC (Canada)
  11. Sorbonne Univ.-UPMC Univ. Paris 06, Ecole Polytechnique, Paris (France)
  12. Ecole Polytechnique Univ. Paris-Saclay, Sorbonne Univ., Palaiseau Cedex (France); CEA, DAM, DIF, Arpajon (France)
  13. Dept. de Fisica de a Univ. de Las Palmas de Gran Canaria, Paris (France)
  14. Joint Institute for High Temperatures, Moscow (Russia); M.V. Lomonosov Moscow State Univ., Moscow (Russia)
  15. Ecole Polytechnique Univ. Paris-Saclay, Sorbonne Univ., Palaiseau Cedex (France)
+ Show Author Affiliations

Here, we investigate the formation of a laser-produced magnetized jet under conditions of a varying mass ejection rate and a varying divergence of the ejected plasma flow. This is done by irradiating a solid target placed in a 20 T magnetic field with, first, a collinear precursor laser pulse (1012 W/cm2) and, then, a main pulse (1013 W/cm2) arriving 9–19 ns later. Varying the time delay between the two pulses is found to control the divergence of the expanding plasma, which is shown to increase the strength of and heating in the conical shock that is responsible for jet collimation. These results show that plasma collimation due to shocks against a strong magnetic field can lead to stable, astrophysically relevant jets that are sustained over time scales 100 times the laser pulse duration (i.e., >70 ns), even in the case of strong variability at the source.

Research Organization:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC52-07NA27344
OSTI ID:
1438720
Alternate ID(s):
OSTI ID: 1414611
Report Number(s):
LLNL-JRNL-733609; PRLTAO; TRN: US1900501
Journal Information:
Physical Review Letters, Vol. 119, Issue 25; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 13 works
Citation information provided by
Web of Science

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Cited By (1)

The influence of the Hall term on the development of magnetized laser-produced plasma jets journal April 2018

Figures / Tables (5)

Figure 1(p. 4)figure Figure 1
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Figure 4(p. 5)figure Figure 4
Figure 5(p. 6)figure Figure 5

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Related Subjects

70 PLASMA PHYSICS AND FUSION