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A method for measuring the velocities of explosive-produced air shocks using an electrical ionization probing system is described. The results of such measurements indicate that under varying conditions of confinement of explosive and air shock, that the reciprocal of the air-shock velocity varies linearly with the distance to the charge surface.

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A method for obtaining experimental compression wave velocities in metals is described. Measurements of the compression wave velocity in copper were made and found to be in good agreement with theoretical predictions. It is suggested that the discrepancy between the velocity (4730 m/sec) reported herein and that reported by Rinehart and Pearson (3600 m/sec) is associated with the different geometries of the two sets of experiments.

No abstract