We present the results of a time and space resolved optical-spectroscopic study of colliding plasmas formed at the front surfaces of flat and inclined Cu slab targets as a function of both the distance and the wedge angle between them for angles ranging from 100° to 180° (laterally colliding plasmas). The key parameters studied are stagnation layer density, temperature, duration, and kinetics of atomic/ionic spatial distributions and all have been found to vary significantly with wedge angle. It is found that the density and temperature of the stagnation layer decrease with increasing wedge angle. It is also found that the larger the wedge angle, the tighter and more well defined the stagnation layer formed.
Target geometrical effects on the stagnation layer formed by colliding a pair of laser produced copper plasmas
C. Fallon, P. Hayden, N. Walsh, E. T. Kennedy, J. T. Costello; Target geometrical effects on the stagnation layer formed by colliding a pair of laser produced copper plasmas. Phys. Plasmas 1 September 2015; 22 (9): 093506. https://doi.org/10.1063/1.4930204
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