Published September 1, 1984
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Streak camera recording of shock wave transit times at large distances using laser illumination
Abstract
A pulsed laser illumination system for streak camera recording of impact-induced shock wave transit times (~1 µs) during impact experiments is described. Laser illumination of centimeter-sized subjects offers many advantages over diffuse illumination techniques for streak photography. Source-to-sample and sample-to-camera distances of ~10^0 to 10^1 m can be employed. Light filtering, and simultaneous recording of both the impact event and the camera streak rate calibration, can be carried out easily. For use in such a system we describe a Pockels cell controller in which the reference 10-MHz oscillator signal is synchronously divided down to 38 Hz to provide a trigger signal for laser and streak camera testing.
Additional Information
Copyright © 1984 American Institute of Physics (Received 3 April 1984; accepted 24 May 1984) This research was supported by Defence Nuclear Agency Contract No. 001-83-C-0113. E. Gelle provided valuable experimental assistance. The authors are also grateful for the help and encouragement of the staff members at AEDC. Contribution number 4041, Division of Geology and Planetary Sciences, California Institute of Technology, Pasadena, CA.Files
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