Synchrotron-like processes of radiation and pair production in fields of crystal planes are accompanied by large number of polarization effects. These effects can be used for production and analysis of TeV-energy polarizede+,e−, photon and hadron beams for their use in high-energy physics. The process ofe+ande−self-polarization accomapnies their radiation in bent crystals, where channeled particles are moving in regions having a preferential direction of the electric field. The results of numerical simulation of self-polarization process with both radiation and multiple scattering taken into account are presented. It is shown that the self-polarization process can be observed using present-day CERN secondary positron beam. At TeV-energy region the efficiency of bothe+ande−self-polarization can be considerably risen by making the crystal curvature growing along the crystal.