a conical sector shock tube (202) is an area of spherical shock waves, diverging radially from a conventional source of non focalisante but highly directional manner.a front compression (208) having a radius of curvature equal to its separation from the top of the sector shock tube defines a leading edge of a "shock of hair" (306) to a degree that we can predict and control accurately.the scarcity of large (314) from the shock of hair (306) is defined by the diffraction caused by the board (312) of the tube (202) of a shock. the rarefaction front (314) gradually eroded the shock of hair (306) when it is proposed to calculate target (128) defining the width and the length of the cap shock propagation (306).the shock of hair (306) spray uniformly the calculation target (128) with a relatively small amount of shock waves from the number (of the order of magnitude of twice as large) used in known processes by shock waves focali ellipsoidal ,.
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