Dispersion of explosion products in a shaped-gas charge

The phenomenon of energy focusing in the detonation of an explosive has found wide application in industry. Examples are shaped charges for geophysical investigations [1] and for crushing rock masses under conditions of back pressure [2], charges for crushing bulky pieces of rock [3, 4], directed well-drilling and pressure charges [5, 6], shaped-gas charges for accelerating solids [7] and for supersonic focusing [8].