PURPOSE:
A method of initiation by pulsed laser radiation of explosives based on highly sensitive complex and simple salts has been developed.
DESCRIPTION:
A physico-mathematical model of initiation by a laser monopulse (PM) (radiation wavelength μm = 1.06, pulse duration <30 ns) has been developed, based on the concept of “hot spots” that arise when light is absorbed by optical microinhomogeneities of VR crystals with a size of ~ 0.1 μm. It was found that for each fiberglass there is an optimal concentration of transparent viscous (20-50%), when the sensitivity of the compound to the action of a laser pulse (LI) is maximum, and to mechanical shock loads – minimum. The developed explosive compound VS-7, which detonates only when exposed to LI and can only burn when exposed to other factors. The peculiarities of initiation of high-voltage laser beams with narrow laser beams are established with the aim of using them in initiation systems using light-driving networks and characteristics of the mechanical effect of the detonation products of thin films from high-voltage fibers on materials. An optical system for the initiation of explosive charges (opsin) has been developed for the enterprises of the mining and metallurgical complex. An experimental sample of the system has been created. Fundamentally new methods of surface hardening of metal structures of complex shape have been developed.
TECHNICAL CHARACTERISTICS:
An experimental prototype of a system with such technical characteristics has been created:
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- laser monopulse energy – 0.3 mJ;
- pulse duration – 11 ns;
- number of channels – 3;
- electronic switching between channels with an error of 1 μs;
- optical detonator response delay – 10μs;
- number of detonators – 500;
- distance from laser to charges – 500 m;
- radiation wavelength μm, = 1.06;
- pulse duration <30 ns.
ADVANTAGES:
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- the laser system for the initiation of explosive charges is safe to use and ensures the precision of blasting processes. The physical potential of the laser system exceeds the potential of any known HE initiation systems;
- the created explosive mixtures (BC) exhibit a sensitivity that is 1.5-2 orders of magnitude higher than the ability of lead azide to detonate.
RECOMMENDED FIELD OF APPLICATION:
The mining industry, mechanical engineering.
RESULTS OF THE RESEARCH:
Ready for implementation.
STAGE OF THE DEVELOPMENT READINESS:
Ready for implementation.
TRANSFER OPPORTUNITY:
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- Sale of patents.
- Collaborative industrialization.
NOVELTY:
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- 9 patents of Ukraine.
- 1 foreign patent.
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