Precision mapping of laser-driven magnetic fields and their evolution in high-energy-density plasmas

Abstract

Magnetic fields generated by the Rayleigh-Taylor instability were measured in laser-accelerated planar foils using ultrafast proton radiography. Thin plastic foils were irradiated with $\sim$4-kJ, 2.5-ns laser pulses focused to an intensity of $\sim$10${}^{14}$ W$/$cm${}^2$ on the OMEGA EP Laser System. Target modulations were seeded by laser nonuniformities and amplified during target acceleration by the Rayleigh-Taylor instability. The experimental data show the hydrodynamic evolution of the target and MG-level magnetic fields generated in the broken foil. The experimental data are in good agreement with predictions from 2-D magnetohydrodynamic simulations.

References in corpus (4)

• Filamentation instability of counter-streaming laser-driven plasmas
• Plasmoid ejection and secondary current sheet generation from magnetic reconnection in laser-plasma interaction
• Fast magnetic reconnection in laser-produced plasma bubbles
• Magnetic field generation by the Rayleigh-Taylor instability in laser-driven planar plastic targets

Cited by in corpus (28)

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• Observations of Pressure Anisotropy Effects within Semi-Collisional Magnetized-Plasma Bubbles
• Thermomagnetic instability of plasma composition gradients
• Plasma Physics in Strong Field Regimes
• Detailed characterization of laboratory magnetized super-critical collisionless shock and of the associated proton energization
• Exploring extreme magnetization phenomena in directly-driven imploding cylindrical targets
• Updated Magnetized Transport Coefficients: Impact on Laser-Plasmas with Self-Generated or Applied Magnetic Fields
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