[en] A method is developed to restore the parameters of EAS detected by the experimental set-up. The advantage of this method is in the possibility of EAS treating in a wide interval of the number of particles, from 10³ to 10⁶. On the example of the ANI-83 experiment the restored EAS parameters are simulated and the accuracy of their estimates is analyzed. The possibility for detection and analysis of multicore showers on the ANI-83 installation is investigated. A method for optimization of the scintillation detector rug for registration of multicore EAS has been developed. 10 refs.; 4 figs

[en] A description of the Maket-ANI experiment is presented intended for high-altitude investigations (Armenia, Mt. Aragatz, 700 G/cm²) of the electron and high-energy γ-hadronic EAS components in the particle number interval 5 x 10⁴ - 5 x 10⁷. It is obtained that the electron spatial distribution is approximated by the Nishimura-Kamata-Grejsen function in the distance range 1-40 m and in the interval of the EAS age values 0.2-1.8. The indices of the EAS integral spectrum with respect to the number of particles are -1.50 ± 0.01 and -1.87 ± 0.04 at the spectrum knee (0.8 ± 0.2) 10⁶. 22 refs., 5 figs

[en] Based on an investigation into multicore extensive air showers registered in the ANI-83 experiment, evaluation of hard-jet production cross section (0.25-0.8 mb) in pp interactions at ∼1.0x10⁶ GeV proton and >50 GeV/c transverse momentum jet energies is obtained