Two-tracer spectroscopy diagnostics of temperature profile in the conduction layer of a laser-ablated plastic foil
- Research Center of Laser Fusion, P. O. Box 919-986, Mianyang 621900 (China)
- Institute of Applied Physics and Computational Mathematics, Beijing 100088 (China)
A technique that combines the diagnostics of electron temperature history and the measurements of ablation velocity with two-tracer x-ray spectroscopy has been developed for diagnosing the temperature profiles in the thermal conduction layers of laser-ablated plastic foils. The electron temperature in the plastic ablator was diagnosed using the isoelectronic line ratios of Al Ly{alpha} line to Mg Ly{alpha} line, emitted from a tracer layer of Al/Mg mixture buried under the ablator. The ablation velocity was inferred from the time delay between the onset time of x-ray line emissions from Al and Mg tracer layers buried at two depths in the ablator, respectively. From the measured electron temperatures and ablation velocity, the electron temperature profile in the conduction layer was inferred. The measured temperature profile was compared with the simulated one and reasonable agreement was found.
- OSTI ID:
- 21532019
- Journal Information:
- Physics of Plasmas, Vol. 17, Issue 11; Other Information: DOI: 10.1063/1.3495978; (c) 2010 American Institute of Physics; ISSN 1070-664X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ABLATION
ELECTRON TEMPERATURE
FOILS
LASERS
LAYERS
PLASMA DIAGNOSTICS
PLASTICS
THERMAL CONDUCTION
VELOCITY
X-RAY SPECTRA
X-RAY SPECTROSCOPY
ENERGY TRANSFER
HEAT TRANSFER
MATERIALS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
POLYMERS
SPECTRA
SPECTROSCOPY
SYNTHETIC MATERIALS