JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
TY - UNPB AU - Hegelich, B.M. ED - McIntosh, Peter ED - Burt, Graeme ED - Apsimon, Robert ED - Schaa, Volker R.W. TI - Nanoparticle Assisted Laser-Wakefield Acceleration of Electron Beams to 10 Gev at the Texas Petawatt Laser J2 - Proc. of LINAC2022, Liverpool, UK, 28 August-02 September 2022 CY - Liverpool, UK T2 - International Linear Accelerator Conference T3 - 31 LA - english AB - 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. PB - JACoW Publishing CP - Geneva, Switzerland ER -