Formation and experimental investigation of a gaseous disperse medium of a pulsed chemical H2 — F2 laser initiated by IR radiation

An H₂(D₂) — F₂ — O₂ — He mixture containing disperse aluminium particles was formed and investigated experimentally. It was found that gaseous disperse active media could be prepared experimentally for pulsed chemical H₂ — F₂ and D₂ — F₂ lasers with mixture pressures of the order of 1  bar. The addition of aluminium particles of ~0.5 μm size in a concentration of ~10⁵ cm^–3 to a mixture of the H₂:F₂:O₂:He = 50:114:11:635 Torr composition did not accelerate the rate of accumulation of HF molecules and such a mixture had the necessary long-term stability. Heating and evaporation of aluminium particles in the active medium of a D₂ — F₂ laser under the action of radiation from an H₂ — F₂ laser was accompanied by combustion of the laser mixture in ~3 μs.