Formation of collisionless shocks driven by strongly magnetized relativistic electrons in the laboratory
In experiments performed with the OMEGA EP laser system, proton deflectometry captured magnetic field dynamics consistent with collisionless shock formation driven by strongly magnetized relativistic electrons. During laser-foil interactions, shocks can form as relativistic electrons and strong surface magnetic fields generated by a short-pulse laser impinge on a cooler plasma produced by a longer-pulse laser. Three-dimensional particle-in-cell simulations reproduce the magnetic draping and fast formation speeds measured in the experiment and reveal that this relativistic-electron-driven shock forms at an interface that is unstable to shear and streaming instabilities. The simulation results provide insight into the microphysics that may influence high-energy shocks observed in extreme astrophysical environments.
- Research Organization:
- Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Boston Univ., MA (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA); National Aeronautics and Space Administration (NASA); USDOE Office of Science (SC)
- Grant/Contract Number:
- NA0003606; NA0003954; SC0024639; NA0003856; 80NSSC21K1326; AC52-07NA27344
- OSTI ID:
- 2281758
- Alternate ID(s):
- OSTI ID: 2310913; OSTI ID: 2337583; OSTI ID: 2338038
- Report Number(s):
- LLNL-JRNL-862377; PPRHAI; L012016
- Journal Information:
- Physical Review Research, Journal Name: Physical Review Research Vol. 6 Journal Issue: 1; ISSN 2643-1564
- Publisher:
- American Physical SocietyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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