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High-Charge Relativistic Electron Bunches from a kHz Laser-Plasma Accelerator

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Gustas, D
Guénot, D
Vernier, A
Dutt, S
Böhle, F
Lopez-Martens, R
Lifschitz, A
Faure, J

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We report on electron wakefield acceleration in the resonant bubble regime with few-millijoule near-single-cycle laser pulses at a kilohertz repetition rate. Using very tight focusing of the laser pulse in conjunction with microscale supersonic gas jets, we demonstrate a stable relativistic electron source with a high charge per pulse up to 24 pC=shot. The corresponding average current is 24 nA, making this kilohertz electron source useful for various applications.

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Physical Review Accelerators and Beams

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