Spectroscopy of argon-doped capsule implosions driven by a z-pinch dynamic hohlraum
Abstract
Argon emission spectroscopy is an important diagnostic for inertial confinement fusion capsule performance. The experiments reported here are the first to successfully generate Ar K-shell spectra from a capsule implosion driven by z-pinch dynamic hohlraum x-rays. A 1.7-mm-diameter CH-wall capsule filled with 2.8 atm CD4 + 0.085 atm Ar absorbed approximately 20 kJ of x-ray energy as it was imploded by the T 200 eV drive radiation. These capsules are significantly larger in diameter and absorb more energy than prior indirect-drive laser-driven implosions. Consequently, the spectrum interpretation presents both new opportunities and new challenges. The qualitative features of the spectra, preliminary analysis of the implosion plasma conditions, and comparison with simulations will be presented.
- Publication:
-
APS Division of Plasma Physics Meeting Abstracts
- Pub Date:
- November 2002
- Bibcode:
- 2002APS..DPPGO2002B