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

Journal Article · · New Journal of Physics
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  1. Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstraße, Dresden (Germany); SLAC
  2. Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstraße, Dresden (Germany)
  3. SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
  4. Universität Siegen (Germany)
  5. SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); European XFEL, Schenefeld (Germany)
  6. European XFEL, Schenefeld (Germany)
  7. Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstraße, Dresden (Germany); Technical University Dresden (Germany)
  8. SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); University of Applied Sciences Schmalkalden (Germany)

In this paper, we present an experiment that explores the plasma dynamics of a 7μm 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.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
German Federal Ministry of Education and Research (BMBF); German Research Foundation (DFG); H2020 Laserlab Europe V (PRISES); USDOE Office of Science (SC), Fusion Energy Sciences (FES)
Grant/Contract Number:
AC02-76SF00515
OSTI ID:
2327000
Journal Information:
New Journal of Physics, Journal Name: New Journal of Physics Journal Issue: 10 Vol. 25; ISSN 1367-2630
Publisher:
IOP PublishingCopyright Statement
Country of Publication:
United States
Language:
English

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