Interferometric Diagnosis of Two-Dimensional Plasma Expansion
Recent advances in interferometry has allowed for the characterization of the electron density expansion within a laser produced plasma to within 10 {micro}m of the target surface and over picosecond timescales. This technique employs the high brightness output of the transient gain Ni-like Pd collisional x-ray laser at 14.7 nm to construct an effective moving picture of the two-dimensional (2-D) expansion within the plasma. In this paper we present experimentally measured density profiles from an Al plasma and make comparisons with 1.5-D and 2-D code simulations. The results are discussed along with an analysis of the underlying mechanisms driving the plasma expansion.
- 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:
- 15005135
- Report Number(s):
- UCRL-JC-149106; TRN: US0401559
- Resource Relation:
- Journal Volume: 641; Conference: 8th International Conference on X-Ray Lasers, Aspen, CO (US), 05/27/2002--05/31/2002; Other Information: PBD: 31 Jul 2002
- Country of Publication:
- United States
- Language:
- English
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