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A Laser-Wakefiled acceleration (LWFA) experiment, aiming the production of high-quality electron relativistic beams, was performed at Astra-Gemini Laser Facility. The interaction was used sub-50 fs laser pulses with energies in the range 4 – 10 J and structured gas cells with lengths of 2 – 4 cm filled with hydrogen as target. Reliable and reproducible electron beams with energies close to 1 GeV were...
Laser-Wakefield Accelerators (LWFA) use the interaction of intense and short-pulse lasers with plasmas to create relativistic high-amplitude plasma density waves. These waves are able to sustain electric fields of GV/cm leading to compact relativistic electron sources. The electron energy gain can be significantly enhanced by propagating the laser in a plasma channel with a parabolic radial density...
Summary form only given. Laser-plasma accelerators use intense laser pulses to produce relativistic plasma density structures that can trap and accelerate electron bunches. The energy gain can be strongly enhanced by extending the acceleration length, where the laser stays focused to high intensity, to a distance much longer than the Rayleigh length. This can be achieved by propagating the laser in...
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