Investigation of microscale shock phenomena using a line-imaging optically recording velocity interferometer system
- Sandia National Laboratories, Albuquerque, New Mexico 87185-0834 (United States)
An optically recording velocity interferometer system (ORVIS) can be operated in a line-imaging configuration that effectively combines subnanosecond temporal resolution with high spatial resolution (length scales{lt}10{mu}m). This technique easily captures very small temporal variations in the onset of motion across the face of a small-scale (400-{mu}m diameter) laser-driven flyer. In another application, line-imaging ORVIS has been used to obtain spatially resolved particle velocity vs. time information at flyer impact on a lithium fluoride witness plate. Subnanosecond differences in flyer arrival time are clearly resolved and the results also show subtle amplitude variations in the pulse delivered at different locations of the acceptor. Observed velocity field variations in laser acceleration of a patterned flyer target demonstrate the feasibility of using line ORVIS in studies of instability formation and growth. These results indicate that this diagnostic can be applied to a wide variety of shock phenomena. {copyright} {ital 1998 American Institute of Physics.}
- Research Organization:
- Sandia National Laboratory
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 302886
- Report Number(s):
- CONF-970707--
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 429; ISSN 0094-243X; ISSN APCPCS
- Country of Publication:
- United States
- Language:
- English
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