Isochoric heating and strong blast wave formation driven by fast electrons in solid-density targets - Archive ouverte HAL Access content directly
Journal Articles New Journal of Physics Year : 2017

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

(1) , (1, 2) , (1) , (2) , (1) , (3, 4) , (1) , (1) , (3, 4) , (1) , (1) , (1) , (5) , (1) , (3, 6) , (3, 4) , (1) , (3, 6) , (1) , (5, 7) , (1, 5)
1
2
3
4
5
6
7

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.
Fichier principal
Vignette du fichier
santos_2017_isochoric_heating.pdf (984.35 Ko) Télécharger le fichier
Origin : Publication funded by an institution
Loading...

Dates and versions

cea-01668961 , version 1 (28-06-2018)

Licence

Attribution - CC BY 4.0

Identifiers

Cite

J 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, 2017, 19, pp.103005. ⟨10.1088/1367-2630/aa806b⟩. ⟨cea-01668961⟩
752 View
90 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More