| 1 | Enhancement of the laser-driven proton source at PHELIX显示文摘We present a study of laser-driven ion acceleration with micrometre and sub-micrometre thick targets,which focuses on the enhancement of the maximum proton energy and the total number of accelerated particles at the PHELIX facility.Using laser pulses with a nanosecond temporal contrast of up to 10^-12 and an intensity of the order of 1020 W/cm^2,proton energies up to 93 MeV are achieved.Additionally,the conversion efficiency at 45°incidence angle was increased when changing the laser polarization to p,enabling similar proton energies and particle numbers as in the case of normal incidence and s-polarization,but reducing the debris on the last focusing optic. | J.Hornung Y.Zobus P.Boller C.Brabetz U.Eisenbarth T.Kühl Zs.Major J.B.Ohl M.Zepf B.Zielbauer V.Bagnoud | 2020 | High Power Laser Science and Engineering2020，8，2： | 0 |
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