Planar laser induced fluorescence mapping of a carbon laser produced plasma.

Autor:	Dorst RS; Department of Physics and Astronomy, University of California, Los Angeles, Los Angeles, California 90095, USA., Constantin CG; Department of Physics and Astronomy, University of California, Los Angeles, Los Angeles, California 90095, USA., Schaeffer DB; Department of Astrophysical Sciences, Princeton University, Princeton, New Jersey 08540, USA., Pilgram JJ; Department of Physics and Astronomy, University of California, Los Angeles, Los Angeles, California 90095, USA., Niemann C; Department of Physics and Astronomy, University of California, Los Angeles, Los Angeles, California 90095, USA.
Jazyk:	angličtina
Zdroj:	The Review of scientific instruments [Rev Sci Instrum] 2022 Oct 01; Vol. 93 (10), pp. 103518.
DOI:	10.1063/5.0099171
Abstrakt:	We present measurements of ion velocity distribution profiles obtained by laser induced fluorescence (LIF) on an explosive laser produced plasma. The spatiotemporal evolution of the resulting carbon ion velocity distribution was mapped by scanning through the Doppler-shifted absorption wavelengths using a tunable, diode-pumped laser. The acquisition of these data was facilitated by the high repetition rate capability of the ablation laser (1 Hz), which allowed for the accumulation of thousands of laser shots in short experimental times. By varying the intensity of the LIF beam, we were able to explore the effects of fluorescence power against the laser irradiance in the context of evaluating the saturation vs the non-saturation regime. The small size of the LIF beam led to high spatial resolution of the measurement compared to other ion velocity distribution measurement techniques, while the fast-gate operation mode of the camera detector enabled the measurement of the relevant electron transitions.
Databáze:	MEDLINE
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