FIG. 3.

Representative pressure-time traces are shown for each of the blast modes, with the free-field (side-on) sensor recordings shown in A, and reflected (face-on) sensor recordings shown in B. Eighth-order curve fits, indicated by a red line, were generated to smooth out the oscillations in the pressure-time traces to enable more accurate estimation of the time points at which the pressure traces crossed below the ambient pressure level (RDX, cyclotrimethylenetrinitramine; Comp. He., compressed helium; Comp. Air., compressed air).