Spin wave and attenuation of liquid explosive detonation

The detonation of nitromethane and a dinitrotoluene solution in bistrinitroxyethylnitramine when the diameter of the cylindrical charge is close to the critical was investigated with the aid of high-speed photography of the luminosity of the lateral and end cylinder surfaces and the recording of the spin wave surface using sampling plates with an air gap. It was discovered that the appearance of penetrating spinning absence-of-reaction waves, which are responsible for the attenuation of liquid explosive detonation, is closely related to the spread of detonation spin waves over the charge surface (or immediately below it). The spin waves, which are instrumental in the propagation of a normal detonation in weakly heterogeneous cast charges consisting of trotyl-hexogene and trotyl-PETN, in the case of liquid explosives probably inhibit the detonation process by inducing the formation of penetrating absence-of-reaction spin waves. It is shown that the spin wave velocity corresponds to the degree of material compression in the near-surface layer, as calculated according to the Dremin-Trofimov model (it can be only slightly above it.)