Dissemin is shutting down on January 1st, 2025

Published in

IOP Publishing, New Journal of Physics, 10(25), p. 103036, 2023

DOI: 10.1088/1367-2630/acfab5

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Probing shock dynamics inside micro-wire targets after high-intensity laser irradiation using small angle x-ray scattering of a free-electron laser

This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

Abstract In this paper, we present an experiment that explores the plasma dynamics of a 7 μ m diameter carbon wire after being irradiated with a near-relativistic-intensity short pulse laser. Using an x-ray free electron laser pulse to measure the small angle x-ray scattering signal, we observe that the scattering surface is bent and prone to instability over tens of picoseconds. The dynamics of this process are consistent with the presence of a sharp, propagating shock front inside the wire, moving at a speed close to the hole boring velocity or that expected from a thermal shock at a few tens of Mbar.