Test-particle simulations show that ~1e5 T magnetic fields in a laser-driven snail target can collimate ~100 MeV proton beams from 10 degrees divergence to about 0.5 degrees, with up to 8x central flux increase.
Giga-Gauss scale quasistatic magnetic field generation in an 'escargot' target
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abstract
A simple setup for the generation of ultra-intense quasistatic magnetic fields, based on the generation of electron currents with a predefined geometry in a curved 'escargot' target, is proposed and analysed. Particle-In-Cell simulations and qualitative estimates show that giga-Gauss scale magnetic fields may be achieved with existent laser facilities. The described mechanism of the strong magnetic field generation may be useful in a wide range of applications, from laboratory astrophysics to magnetized ICF schemes.
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All-optical compact setup for generation of collimated multi-MeV proton beams with a "snail" target
Test-particle simulations show that ~1e5 T magnetic fields in a laser-driven snail target can collimate ~100 MeV proton beams from 10 degrees divergence to about 0.5 degrees, with up to 8x central flux increase.