Kulivar V. Substantiation of the parameters of certain components of the blast- initiation laser systems involving light-sensitive composites in the process of rock breaking

The works devoted to the problems of initiating explosives by laser monopulse were analyzed, and it was concluded that: the sensitivity of light-sensitive explosive composites (LSEC) to the action of the initiating laser monopulse is several times higher than the sensitivity of pure explosives; lowering the initiation threshold of the LSEC can be done by increasing the rate of energy input of laser radiation; when initiating the detonation of the LSEC should take into account the dimensional effect - the dependence of the initiation threshold on the laser beam geometry and the wavelength radiation; standard initiating explosives (SIE) show a high sensitivity to the action of the laser pulse at high compression pressures (> 108 PA), which makes it impossible to use them as primary substances in optical detonators; work aimed at increasing the sensitivity of regular primary explosives to laser radiation, in contrast to secondary explosives, was carried out in a small number of studies; effective use of laser systems to initiate explosive charges during mass explosions is possible with the use of light-sensitive explosive composites.