Measurement of the in-flight pusher density of an indirect drive capsule implosion core using x-ray backlighting
Both the efficiency of an implosion and the growth rate of hydrodynamic instability increase with the aspect ratio of an implosion. In order to study the physics of implosions with high Rayleigh-Taylor growth factors, we use doped ablators which should minimize x-ray preheat and shell decompression, and hence increase in- flight aspect ratio. We use x-ray backlighting techniques to image the indirectly-driven capsules. We record backlit 4.7 KeV images of the full capsule throughout the implosion phase with 55 ps and 15{mu}m resolution. We use these images to measure the in-flight aspect ratios for doped ablators, and we infer the radial density profile as a function of time by Abel inverting the transmission profiles.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 250565
- Report Number(s):
- UCRL-JC-123294; CONF-9606229-2; ON: DE96012187; TRN: 96:016057
- Resource Relation:
- Conference: 24. European conference on laser interaction with matter, Madrid (Spain), 3-7 Jun 1996; Other Information: PBD: 30 May 1996
- Country of Publication:
- United States
- Language:
- English
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