Nardi E, Zinamon Z, Stambulchik E, Zastrau U, Kroupp E, Uschmann I, Paulus GG, Maron Y (2021)
Publication Type: Journal article
Publication year: 2021
Book Volume: 28
Article Number: 023101
Journal Issue: 2
DOI: 10.1063/5.0035356
We study electron heating and stopping power in warm dense matter as formed in interactions of sub-picosecond high-intensity lasers with solid bulk targets. In such interactions, an intense beam of forward moving relativistic electrons is created, inducing a compensating return current and generating characteristic Kα x-ray radiation along the propagation path. The theoretical calculations presented here are inspired by, and tested against, a previously published study that provides bulk-temperature and absolutely calibrated Kα radial profiles. By using Monte Carlo simulations, the experimental data allow for inferring the flux of the relativistic electrons, which is a crucial input for the target heating calculations. For the latter, a "rigid beam"model is employed, describing the central, nearly homogeneous, part of the target. The comparison with the experiment shows a fairly good agreement. For the conditions analyzed, we find that the effect of the return current is dominant both in the target heating and in the beam stopping.
APA:
Nardi, E., Zinamon, Z., Stambulchik, E., Zastrau, U., Kroupp, E., Uschmann, I.,... Maron, Y. (2021). Target heating in femtosecond laser-plasma interactions: Quantitative analysis of experimental data. Physics of Plasmas, 28(2). https://doi.org/10.1063/5.0035356
MLA:
Nardi, Eran, et al. "Target heating in femtosecond laser-plasma interactions: Quantitative analysis of experimental data." Physics of Plasmas 28.2 (2021).
BibTeX: Download