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Time-resolved PLIF imaging of Cu in a laser-ablated copper plasma plume

Journal Article · · IEEE Transactions on Plasma Science
DOI:https://doi.org/10.1109/27.491679· OSTI ID:244910
;  [1]
  1. Los Alamos National Lab., NM (United States). Chemical Science and Technology Div.
Planar laser-induced fluorescence (PLIF) has been used to determine the relative number density of ground state copper atoms in laser-ablated plasma plumes. An ablation laser power flux of {approximately}1.5 GW/cm{sup 2} is applied to a solid copper target in a background gas, producing a plasma plume suitable for studying homogeneous copper vapor condensation. Density is measured at postablation time delays ranging from 5 {micro}s to 10 ms with 1--100 torr of either argon or helium as the background gas. Planar laser-induced fluorescence images are used to spatially resolve the relative density within the plume. The decrease in density is due to the homogeneous condensation of copper vapor to form particulate.
OSTI ID:
244910
Journal Information:
IEEE Transactions on Plasma Science, Journal Name: IEEE Transactions on Plasma Science Journal Issue: 1 Vol. 24; ISSN ITPSBD; ISSN 0093-3813
Country of Publication:
United States
Language:
English