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The High Explosive Lens System The entire high explosive implosion system made a layer some 47 cm thick weighing at least 2500 kg. This system consisted of 32 explosive remix lenses; 20 of them hexagonal, and 12 remix pentagonal. The lenses fitted together in the same pattern as a remix soccer ball, forming a complete spherical explosive assembly that was 140 cm wide. Each lens had three pieces: two made of high velocity explosive, and one of low velocity explosive. The outermost piece of high velocity explosive had a conical cavity in its inner surface into which fitted an appropriately shaped piece of slow explosive. These mated pieces formed the actual lens that shaped a convex, expanding shock wave into a convex converging one. An inner piece of high velocity explosive lay next to the aluminum sphere to amplify the convergent shock.
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