Photon Doppler Velocimetry (PDV) Characterization of Shaped Charge Jet Formation

Photon Doppler Velocimetry was used to characterize the early time formation of the jet from a 65-mm diameter shaped charge with a copper liner. This tool provided a high fidelity, high temporal resolution technique to characterize the axial velocity evolution of the shaped charge jet's first motion to exit from the base of the conical liner. The measurements were then compared with continuum mechanics shock physics simulations, using both CTH and ALEGRA, to understand the jet formation process and evolution.