Scaling of laser-driven electron and proton acceleration as a function of laser pulse duration, energy, and intensity in the multi-picosecond regime
- 1 January 2021
- journal article
- research article
- Published by AIP Publishing in Physics of Plasmas
- Vol. 28 (1), 013108
- https://doi.org/10.1063/5.0023612
Abstract
A scaling study of short-pulse laser-driven proton and electron acceleration was conducted as a function of pulse duration, laser energy, and laser intensity in the multi-picosecond (ps) regime (∼0.8 ps–20 ps). Maximum proton energies significantly greater than established scaling laws were observed, consistent with observations at other multi-ps laser facilities. In addition, maximum proton energies and electron temperatures in this regime were found to be strongly dependent on the laser pulse duration and preplasma conditions. A modified proton scaling model is presented that is able to better represent the accelerated proton characteristics in this multi-ps regime.Keywords
Funding Information
- U.S. Department of Energy (DE-NA0001808)
- U.S. Department of Energy (DE-NA0003864)
- U.S. Department of Energy (DE-AC52-07NA27344)
- U.S. Department of Energy (SCW1651)
- Lawrence Livermore National Laboratory (17-ERD-039)
- Lawrence Livermore National Laboratory (20-ERD-048)
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