Propagation of the shock wave generated from excimer laser heating of aluminum target in comparison with the idea blast wave theory

Date Published
05/1998
Publication Type
Journal Article
Authors
DOI
10.1016/S0169-4332(97)00785-X
LBL Report Number
LBNL-41232
Abstract

Propagation of the shock wave generated during pulsed laser heating of aluminum targets was measured utilizing a probe beam deflection technique. The transit time of the laser-generated shock wave was compared with that predicted from the Sedov–Taylor solution for an ideal spherical blast wave. It was found that the most important parameters for the laser-generated shock wave to be consistent with the theoretically predicted propagation are the ambient pressure and the laser beam spot size. The prediction for laser energy conversion into the laser-induced vapor flow using the Sedov–Taylor solution overestimated the energy coupling efficiency, indicating a difference between a laser-induced gas-dynamic flow and an ideal blast wave.

Notes

LBNL-41232 NOT IN FILE

Journal
Applied Surface Science
Volume
127-129
Year of Publication
1998
Pagination
1029-1034
Keywords
Organizations
Download citation