Isochoric heating and strong blast wave formation driven by fast electrons in solid-density targets

Abstract : We experimentally investigate the fast ($<1$ ps) isochoric heating of multi-layer metallic foils and subsequent high-pressure hydrodynamics induced by energetic electrons driven by high-intensity, high-contrast laser pulses. The early-time temperature profile inside the target is measured from the streaked optical pyrometry of the target rear side. This is further characterized from benchmarked simulations of the laser-target interaction and the fast electron transport. Despite a modest laser energy ($<1$ J), the early-time high pressures and associated gradients launch inwards a strong compression wave developing over ${>\atop\sim}$10 ps into a $\approx$ 140 Mbar blast wave, according to hydrodynamic simulations, consistent with our measurements. These experimental and numerical findings pave the way to a short-pulse-laser-based platform dedicated to high-energy-density physics studies.
Complete list of metadatas

Cited literature [51 references]  Display  Hide  Download

https://hal-cea.archives-ouvertes.fr/cea-01668961
Contributor : Caroline Lebe <>
Submitted on : Thursday, June 28, 2018 - 10:08:20 AM
Last modification on : Monday, September 2, 2019 - 5:32:02 PM
Long-term archiving on : Thursday, September 27, 2018 - 8:24:04 AM

File

santos_2017_isochoric_heating....
Publication funded by an institution

Licence


Distributed under a Creative Commons Attribution 4.0 International License

Identifiers

Citation

J Santos, B Vauzour, M. Touati, L. Gremillet, J-L Feugeas, et al.. Isochoric heating and strong blast wave formation driven by fast electrons in solid-density targets. New Journal of Physics, Institute of Physics: Open Access Journals, 2017, 19, pp.103005. ⟨10.1088/1367-2630/aa806b⟩. ⟨cea-01668961⟩

Share

Metrics

Record views

946

Files downloads

152