Abstract
The crater formation process is studied in the “laser - Al solid target” interactions on the PALS iodine laser facility. A great variety of laser beam parameters are used to irradiate massive aluminium targets. Large laser energies available (up to 600 J) open a possibility to investigate the process of crater formation for physical conditions different from the earlier studies for the lower laser energies. Comparison with the earlier results is presented.
A simple theory, LSM (laser simulation method), has been applied for the analysis of the experimental results. This model leads to a universal relation (scaling law) for the crater relative volume. Our work extends the study of crater formation to the “virtual” macroparticle velocities exceeding 100 km/s. The scaling law is derived here for this previously unexplored region. An alternative method of studying crater formation is also proposed.
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Borodziuk, S., Kasperczuk, A., Pisarczyk, T. et al. Application of Laser Simulation Method for the Analysis of Crater Formation Experiment on PALS Laser. Czechoslovak Journal of Physics 53, 799–810 (2003). https://doi.org/10.1023/A:1025926617637
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DOI: https://doi.org/10.1023/A:1025926617637