Title: Laser-driven strong magnetostatic fields with applications to charged beam transport and magnetized high energy-density physics

Journal Article · · Physics of Plasmas
DOI: https://doi.org/10.1063/1.5018735 · OSTI ID:1540163
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [3]; ORCiD logo [4];  [5];  [4];  [6];  [6]; ORCiD logo [7];  [2]; ORCiD logo [8]; ORCiD logo [9]; ORCiD logo [10]; ORCiD logo [11];  [12];  [8]; ORCiD logo [13]; ORCiD logo [8];  [14];  [8] more »; ORCiD logo [6];  [6];  [15];  [16];  [8]; ORCiD logo [16]; ORCiD logo [15]; ORCiD logo [10];  [17]; ORCiD logo [18]; ORCiD logo [8] « less
  1. Univ. Bordeaux, Talence (France). CNRS, CEA, Centre Lasers Intenses et Applications (CELIA); DOE/OSTI
  2. Univ. Bordeaux, Talence (France). CNRS, CEA, Centre Lasers Intenses et Applications (CELIA); Univ. of California at San Diego, La Jolla, CA (United States). Dept. of Mechanical and Aerospace Engineering
  3. Univ. Bordeaux, Talence (France). CNRS, CEA, Centre Lasers Intenses et Applications (CELIA); Technische Univ. Darmstadt, Darmstadt (Germany). Inst. für Kernphysik
  4. Univ. of California at San Diego, La Jolla, CA (United States). Dept. of Mechanical and Aerospace Engineering
  5. Univ. Bordeaux, Talence (France). CNRS, CEA, Centre Lasers Intenses et Applications (CELIA)
  6. Aix Marseill Univ., Marseille (France). Centre national de la recherche scientifique (CNRS)
  7. Univ. de Las Palmas de Gran Canaria, Las Palmas de Gran Canaria (Spain). iUNAT, Dept. de Física
  8. Osaka Univ., Osaka (Japan). Inst. of Laser Engineering
  9. Univ. de Valladolid, Valladolid (Spain). Atómica y Óptica, Dept. de Física Teórica
  10. Univ. Bordeaux, Talence (France). CNRS, CEA, Centre Lasers Intenses et Applications (CELIA); Czech Academy of Sciences, Dolní Břežany (Czech Republic). Inst. of Phyiscs, ELI-Beamlines
  11. Atomique Energie Commission (CEA), Arpajon (France) Direction des Applications Militaires Ile-de-France (DAM DIF)
  12. Univ. Politécnica de Madrid, Madrid (Spain). ETSI Aeronáutica y del Espacio
  13. National Research Nuclear Univ. MEPhl, Moscow (Russia); Lebedev Physical Inst., Moscow (Russia)
  14. LULI, UMR, CNRS, Ecole Polytechnique, CEA, Université Paris-Saclay, and UPMC, Sorbonne Universités, Palaiseau (France)
  15. Imperial College London, London (United Kingdom). Blackett Lab.
  16. Technische Univ. Darmstadt, Darmstadt (Germany). Inst. für Kernphysik
  17. Helmholtz-Zentrum Dresden-Rossendorf, Dresden (Germany). Inst. for Radiation Physics
  18. Univ. of York, Heslington (United Kingdom). Dept. of Physics

Powerful nanosecond laser-plasma processes are explored to generate discharge currents of a few 100 kA in coil targets, yielding magnetostatic fields (B-fields) in excess of 0.5 kT. The quasi-static currents are provided from hot electron ejection from the laser-irradiated surface. According to the model used in our paper, which describes the evolution of the discharge current, the major control parameter is the laser irradiance Ilasλ2las. The space-time evolution of the B-fields is experimentally characterized by high-frequency bandwidth B-dot probes and proton-deflectometry measurements. The magnetic pulses, of ns-scale, are long enough to magnetize secondary targets through resistive diffusion. We applied it in experiments of laser-generated relativistic electron transport through solid dielectric targets, yielding an unprecedented 5-fold enhancement of the energy-density flux at 60 μm depth, compared to unmagnetized transport conditions. These studies pave the ground for magnetized high-energy density physics investigations, related to laser-generated secondary sources of radiation and/or high-energy particles and their transport, to high-gain fusion energy schemes, and to laboratory astrophysics.

Research Organization:
Univ. of California, San Diego, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
SC0018312
OSTI ID:
1540163
Journal Information:
Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 5 Vol. 25; ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

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Cited By (6)

Efficient production of strong magnetic fields from ultraintense ultrashort laser pulse with capacitor-coil target journal August 2018
Improvement of proton acceleration via collisionless shock acceleration by laser-foil interaction with an external magnetic field journal December 2019
Ultrafast wave-particle energy transfer in the collapse of standing whistler waves journal November 2019
Thermonuclear fusion triggered by collapsing standing whistler waves in magnetized overdense plasmas journal January 2020
Laser Amplification in Strongly Magnetized Plasma journal July 2019
Laser Amplification in Strongly-Magnetized Plasma text January 2018