Comparisons of Line Emission from ICF Capsules in 2- and 3-Dimensional Simulations
Hydrodynamic instabilities reduce the yield in inertial confinement fusion (ICF) implosions. Line emission from dopants placed in the capsule can be used to diagnose the extent of the instabilities. This paper presents the results of a large number of 2D simulations and a few 3D simulations of line emission from argon in the DH fuel and titanium placed in the inner layers of the plastic shell of a NOVA ICF capsule. The Simulations have been compared to NOVA experimental data on the ratio of argon Ly-{beta} to titanium He-{alpha}, the relative strength of titanium He-{alpha} and its satellites, and the strength of the continuum near titanium He-{alpha}. The simulations are in reasonable agreement with the data, but the amount of data is small enough that it is hard to make precise comparisons. Two different atomic databases have been used in a first attempt to determine the set of configurations required to properly model the titanium emission.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- US Department of Energy (US)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 15002148
- Report Number(s):
- UCRL-JC-148664; TRN: US200408%%143
- Resource Relation:
- Conference: 10th International Workshop on Radiative Properties of Hot Dense Matter, St. Malo (FR), 09/16/2002--09/20/2002; Other Information: PBD: 9 Nov 2002
- Country of Publication:
- United States
- Language:
- English
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