Methods to Reduce Sand Ejecta from Projectile Impact - a Scaled Study with the Goal of Application to Depleted Uranium Penetrator Catch Boxes
ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS ENVIRONMENTAL LAB
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Depleted uranium DU is used in three penetrator munitions by the U.S. Army, a 25-mm round M242, 105-mm antitank rounds M900, M774, M833, and 120-mm antitank rounds M829, M829A1, M829A2. The last two of these munitions are frequently fired into large catch boxes at two proving grounds Yuma Proving Ground near Yuma, AZ and the Aberdeen Proving Ground, MD. Gamma radiation surveys indicate that during penetrator impact DU ejecta in particulate material are deposited around catch boxes. A scaled version of the catch box was constructed using SACON concrete blocks and construction grade sand. Testing consisted of firing a three-shot salvo from a 50-caliber, Barrett Rifle using standard ball ammunition. Both high-speed Phantom and digital video cameras were used to capture ejecta images during the impact. Ejected sand settled on the capture tarp, where it was collected after shots.
- Radioactivity, Radioactive Wastes and Fission Products