X-ray Thomson scattering measurements from hohlraum-driven spheres on the OMEGA laser

A M Saunders; A Jenei; T Döppner; R W Falcone; D Kraus; A Kritcher; O L Landen; J Nilsen; D Swift

doi:10.1063/1.4962044

X-ray Thomson scattering measurements from hohlraum-driven spheres on the OMEGA laser

Rev Sci Instrum. 2016 Nov;87(11):11E724. doi: 10.1063/1.4962044.

Authors

A M Saunders¹, A Jenei², T Döppner², R W Falcone¹, D Kraus³, A Kritcher², O L Landen², J Nilsen², D Swift²

Affiliations

¹ University of California Berkeley, Berkeley, California 94720, USA.
² Lawrence Livermore National Laboratory, Livermore, California 94551, USA.
³ Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstrasse 400, 01328 Dresden, Germany.

PMID: 27910609
DOI: 10.1063/1.4962044

Abstract

X-ray Thomson scattering (XRTS) is a powerful diagnostic for probing warm and hot dense matter. We present the design and results of the first XRTS experiments with hohlraum-driven CH₂ targets on the OMEGA laser facility at the Laboratory for Laser Energetics in Rochester, NY. X-rays seen directly from the XRTS x-ray source overshadow the elastic scattering signal from the target capsule but can be controlled in future experiments. From the inelastic scattering signal, an average plasma temperature is inferred that is in reasonable agreement with the temperatures predicted by simulations. Knowledge gained in this experiment shows a promising future for further XRTS measurements on indirectly driven OMEGA targets.