Primary velocity dependence of impact ejecta parameters
Abstract
From the light emitted during impacts of secondary particles produced during hypervelocity primary impacts, the velocities and relative masses of these ejecta were determined as a function of the angle between the ejection direction and the target surface. The velocity of the ejecta increases with increasing impact velocity and decreasing ejection angle. The ratio of the maximum ejecta velocity to the primary impact velocity decreases with increasing impact speed. The main fraction of the secondary particles is ejected in rather small angular intervals of about 10° width in elevation. The ejection angle of the main fraction of the ejecta mass increases with increasing impact velocity.
- Publication:
-
Planetary and Space Science
- Pub Date:
- May 1978
- DOI:
- 10.1016/0032-0633(78)90068-5
- Bibcode:
- 1978P&SS...26..469E
- Keywords:
-
- Ejection;
- Hypervelocity Impact;
- Impact Damage;
- Particle Collisions;
- Particle Motion;
- Velocity Distribution;
- Angular Distribution;
- Light Emission;
- Mass Distribution;
- Secondary Emission;
- Velocity Measurement;
- Physics (General)