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Laser-driven autoresonant acceleration of thermal electrons in plasma solenoid
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DOI：10.1103/pxvc-2dgb.png)
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Abstract
En 中文
The process of direct laser acceleration of plasma electrons is considered in a strongly magnetized plasmoid with the magnetic field strength allowing for reaching the autoresonance without any special injection conditions. The plasmoid may be optically created by irradiation of specially designed targets with an auxiliary intense laser beam at the previous stage of interaction in a possible all-optical setup. Specifics of the acceleration in the strongly magnetized plasma solenoid, such as the magnetic field profile and its finite size, may be critical for the resonant processes where even a small deviation of the parameters destroys the matching conditions. The process of the autoresonant electron acceleration is analyzed for different configurations inherent in the possible realizations of the setup, and estimates for the efficiency of acceleration and resonance magnetic fields are proposed. Based on the provided analysis, it may be concluded that despite the modifications of the autoresonance conditions and the presence of collective effects, the generation of energetic electron bunches in a realistic setup may be both possible and effective.
Keywords:
CYCLOTRON AUTORESONANCE
PARTICLE
FIELD
WAVE
EMITTANCE
MOTION
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