Scaling of laser-driven electron and proton acceleration as a function of laser pulse duration, energy, and intensity in the multi-picosecond regime

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). Furthermore, maximum proton energies significantly greater than established scaling laws...

Full description

Saved in:
Bibliographic Details
Published in:Physics of plasmas 2021-01, Vol.28 (1)
Main Authors: Simpson, R. A., Scott, G. G., Mariscal, D., Rusby, D., King, P. M., Grace, E., Aghedo, A., Pagano, I., Sinclair, M., Armstrong, C., Manuel, M. J.-E., Haid, A., Flippo, K., Winslow, L., Gatu-Johnson, M., Frenje, J. A., Neely, D., Kerr, S., Williams, G. J., Andrews, S., Cauble, R., Charron, K., Costa, R., Fischer, B., Maricle, S., Stuart, B., Albert, F., Lemos, N., Mackinnon, A., MacPhee, A., Pak, A., Ma, T.
Format: Article
Language:English
Subjects:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
high energy density physics
laser plasma interactions
particle acceleration
particle beams
plasma expansion
ponderomotive force
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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). Furthermore, 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.
ISSN:1070-664X
1089-7674