WE1AA04
The University of Texas at Austin, Austin, Texas, USA
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WE1AA04 |
Nanoparticle Assisted Laser-Wakefield Acceleration of Electron Beams to 10 Gev at the Texas Petawatt Laser | |
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| We report peak electron energies beyond 10 GeV from a proof-of-principle experiment of laser wakefield electron acceleration with a Petawatt-class laser in a 10 cm long gas cell filled with helium mixed with aluminum nanoparticles. Compared with other wakefield acceleration schemes, our scheme is straightforward since it requires only a gas cell and a source of nanoparticles for electron injection. No external guiding or heating mechanisms are employed. The nanoparticle-assisted laser wakefield acceleration can control all the electron beam parameters: charge, energy spread, energy, emittance, and the number of bunches in the beam. Bunch charges are on the order of a few nanocoulomb for the whole beam and in the 100pC range in the high energy part, an order of magnitude increase over previous results at >5 GeV. We demonstrate shots with percent-level narrow energy spread at multi-GeV energies as well as varying numbers of electron bunches. This new method therefore shows great potential to support the further development of laser-plasma-based electron acceleration. | ||
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Slides WE1AA04 [8.972 MB] | |
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