Enhanced laser-driven proton acceleration via improved fast electron heating in a controlled pre-plasma
نویسندگان
چکیده
The interaction of ultraintense laser pulses with solids is largely affected by the plasma gradient at vacuum-solid interface, which modifies absorption and ultimately, controls energy distribution function heated electrons. A micrometer scale-length has been predicted to yield a significant enhancement weight fast electron population play major role in laser-driven proton acceleration thin foils. We report on recent experimental results from foil targets ultra-relativistic intensities. show three-fold increase cut-off when pre-plasma introduced irradiation low femtosecond pre-pulse. Our realistic numerical simulations agree observed gain confirm stochastic heating electrons accelerating sheath field.
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ژورنال
عنوان ژورنال: Scientific Reports
سال: 2021
ISSN: ['2045-2322']
DOI: https://doi.org/10.1038/s41598-021-93011-3