[en] The simple approximation formulae are obtained for the average number of particles in the shower in the maximum range respect to the energy spectrum of secondary particles. The obtained curves agree with the data obtained by the momentum method with the accuracy not worse than 15%. The simple analytical expression is obtained for the effective generation layer of shower containing more than n electrons

[en] The algorithm is presented of the program on simulation of muon transport through Aragats spark calorimeter. Statistic test method with account of fluctuations and angular distributions of cascade showers is used. The program is worked out on the Fortran algorithm language for EVM BESM-6 and is calibrated by experimental data of Aragats complex installation

[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 new method of the calorimetric information processing is described using as example the problem of μ-meson energy determination by means of a spark calorimeter. A comparison is carried out with the existing methods of energy estimate

[en] It is proposed for the first time to use the maximum likelihood method for the restoration of parameters of the electro-photon cascade registered on X-ray films

[en] An analysis of capabilities of the available methods for determination of the field integral in muon magnetic spectrometers is made. Some difficulties connected with the use of these methods under the conditions of the ANI magnetic spectrometer are shown. A computerized simulation technique for determination of the field integral based on the use of a vertical flux of cosmic muons is proposed and substantiated. On the example of the ANI spectrometer numerical data are obtained which allow to choose optical parameters of measuring complex for the field integral determination. 14 refs.; 6 figs.; 9 tabs

[en] The efficiency of registration and identification of muon trajectories in the ANI magnetic spectrometer when using a modular system (drift tubes) of coordinate detectors is calculated. Modules with sensitive area of 0.1 m² are shown to be inefficient in the investigation of the energy spectrum of muons in EAS for energies E_μ>1 TeV. For successful solving the muon problem in the ANI experiment the sensitive area of the coordinate detector modules must be increased up to 0.01-0.03 m². 9 refs.; 4 figs.; 1 tab

[en] A method of maximum prpbability for the restoration of parameters of an electron-photon cascade on X-ray films is proposed. The technique and accuracies of the restoration of energy and spatial parameters of cascades, simulated by Monte Carlo method, are described. The maximum probability method allows to obtain the maximum accuracies of parameter evaluation. The results may be used in data processing of emulsion experiments of large areas (Pamir etc.) using automatic scanning on a PDS type machine

[en] Numerical and analytical methods of experimental installation light gathering power calculation are considered. The analysis of gathering numerical algorithms is carried out. The algorithm of light power calculation of real experimental installations by means of the Monte Carlo method is described in detail. The user SV program instruction meant for the light gathering power calculation of experimental installations by the Monte Carlo method is enclosed. The SV program is written in FORTRAN-DUBNA and intended for operation on the BESM-6 computer. The light gathering powers of . installations allocated on the Aragats mountain are calculated. The light gathering power calculation of the average complexity installation by the SV program with a number of statistical tests 10⁵ takes approximately 2 minutes of BESM-6 computer time

[en] It is proposed to search for cosmic ray anisotropy on the basis of experimental data from the ''PION'' installation which registers hadrons with energies 0.5-30 TeV and also hadron groups in the direction of galactic sources Cygnus X- and Hercules-1. It is for the first time suggested to investigate the cosmic ray spectra from the point of view of direction anisotropy