Insensitive munition booster seal

摘要

Migration of Di-Octyl Adipate (DOA) from PBXN-9 main charge into an adjacent PBXN-5 booster charge is the leading cause for unreliable and inefficient detonations when these two insensitive munition explosives are in close proximity. A hermetic seal of metal foil is interposed between the booster and main charges to block migration of DOA chemicals between the charges. This prevents plasticizing and/or desensitizing the booster charge and possible catastrophic accidental detonations or highly undesirable explosive desensitization which might create unexploded ordnance. The hermetic seal may also have a first portion of metal foil covering the surface of a bore in the booster charge and second portions of metal foil covering the surface of bores in the main charge. The first portion is thinner than the second portions and may be varied in thickness to change the amount and timing of the explosive stimulation of the main charge by the booster charge or to change the detonation signature propagated to the booster charge and main charge.