Critical conditions for initiation of cylindrical multifront detonation

A quantitative relation between the characteristic scales determining the excitation and propagation of cylindrical and spherical detonation waves is found with the use of a technique for diffraction reinitiation of multifront detonation. The effect of the channel depth on the reinitiation conditions is studied. The ideal character (the smallness of losses) of a cylindrical multifront wave is estimated, and this estimate is found to be in agreement with experimental data.