Simultaneously time- and space-resolved spectroscopic characterization of laser-produced plasmas
The CHROMA laser facility at KMS Fusion has been used to irradiate a variety of microdot targets. These include aluminum dots and mixed bromine dots doped with K-shell (magnesium) emitters. Simultaneously time- and space-resolved K-shell and L-shell spectra have been measured and compared to dynamic model predictions. The electron density profiles are measured using holographic interferometry. Temperatures, densities, and ionization distributions are determined using K-shell and L-shell spectral techniques. Time and spatial gradients are resolved simultaneously using three diagnostics: a framing crystal x-ray spectrometer, an x-ray streaked crystal spectrometer with a spatial imaging slit, and a 4-frame holographic interferometer. Significant differences have been found between the interferometric and the model-dependent spectral measurements of plasma density. Predictions by new non-stationary L-shell models currently being developed are also presented. 14 refs., 10 figs.
- Research Organization:
- KMS Fusion, Inc., Ann Arbor, MI (USA); Lawrence Livermore National Lab., CA (USA); California Univ., Davis (USA). Dept. of Applied Science
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 5222374
- Report Number(s):
- UCRL-98386; CONF-880110-26; ON: DE88008038
- Resource Relation:
- Conference: SPIE O-E Lase '88: optoelectronics and laser applications in science and engineering, Los Angeles, CA, USA, 10 Jan 1988
- Country of Publication:
- United States
- Language:
- English
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LASER-PRODUCED PLASMA
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ENERGY SPECTRA
INTERFEROMETRY
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SPATIAL RESOLUTION
TIME RESOLUTION
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