Study of cascades produced by cosmic ray muons in processes of electromagnetic and nuclear interactions

Investigations into energy spectrum of electromagnetic cascades in the energy range of 0.8-3 TeV for zenith angles THETA < 50 deg and THETA > 50 deg as well as energy dependence of a share of nuclear cascades in different ranges of zenith angle have been carried on. The experiment was performed at a complex device consisting of an ionization calorimeter, hodoscopic detectors and neutron monitor located at a depth of 150 m w.e. under ground. It is shown that spectra within the limits of statistical errors can be described with the power law with indexes ν1=2.o7+-0.30 and ν2=2.54+-0.19