Substantiation of the feasibility of developing a purely chemical $H_2-F_2$ laser with evaporation of finely dispersed particles under the action of infrared radiation

A numerical analysis is made of the operation of a pulsed $H_2-F_2$ chemical laser initiated by infrared radiation which evaporates finely dispersed aluminum particles injected into the active medium. It is shown that the specific output energy of a hydrogen-fluorine laser operating at a mixture pressure of 1 atm using $Al$ particles with a concentration of $10^9$ cm$^{-3}$ and a radius of $\sim0.1\mu m$ is as high as 100–200 J/liter, exceeding the specific energy consumption of initiating radiation by a factor of 20. Under these conditions, the overlap time of the diffusion clouds ($\sim0.1 \mu s$) from evaporated particles is much shorter than the duration of the chemical lasing process ($\gtrsim1\mu s$), ensuring a high degree of homogeneity of the medium.