RT info:eu-repo/semantics/article
T1 Phase imaging of irradiated foils at the OMEGA EP facility using phase-stepping X-ray Talbot–Lau deflectometry
A1 Bouffetier, V.
A1 Ceurvorst, L.
A1 Goudal, T.
A1 Klein, S. R.
A1 Svyatskiy, D.
A1 Holec, M.
A1 Perez-Martin, P.
A1 Falk, K.
A1 Casner, A.
A1 Weber, T. E.
A1 Kagan, G.
A1 Valdivia, M. P.
A1 Pérez Callejo, Gabriel
AB Diagnosing the evolution of laser-generated high energy density (HED) systems is fundamental to develop a correct understanding of the behavior of matter under extreme conditions. Talbot–Lau interferometry constitutes a promising tool, since it permits simultaneous single-shot X-ray radiography and phase-contrast imaging of dense plasmas. We present the results of an experiment at OMEGA EP that aims to probe the ablation front of a laser-irradiated foil using a Talbot–Lau X-ray interferometer. A polystyrene (CH) foil was irradiated by a laser of 133 J, 1 ns and probed with 8 keV laser-produced backlighter radiation from Cu foils driven by a short-pulse laser (153 J, 11 ps). The ablation front interferograms were processed in combination with a set of reference images obtained ex situ using phase-stepping. We managed to obtain attenuation and phase-shift images of a laser-irradiated foil for electron densities above 1e22 cm−3. These results showcase the capabilities of Talbot–Lau X-ray diagnostic methods to diagnose HED laser-generated plasmas through high-resolution imaging.
PB Cambridge Publishing
SN 2095-4719
YR 2023
FD 2023
LK https://uvadoc.uva.es/handle/10324/64401
UL https://uvadoc.uva.es/handle/10324/64401
LA eng
NO High Power Laser Science and Engineering, Mayo 2023, vol. 11, e49
NO Producción Científica
DS UVaDOC
RD 27-dic-2024