[en] The results are presented on the investigation of interactions of multicharged nuclei of primary cosmic radiation in the energy range of 0.1- 1 GeV/nucleon with emulsion nuclei. Production of fast helium nuclei in these interactions has been considered. Angular distributions of doubly charged particles with the energies of 36 < E < 200 MeV are obtained. Characteristics of events containing different numbers of α-particles with the energy E > 40 MeV are given. The energy of doubly charged particles has been shown to be independent of multiplicity of protons and α-particles in splitting. The transverse momentum and the mean angle of fast proton emission remain constant with α-particle energy increasing