Abstract
The method of virtual quanta was used to calculate the radiative corrections to the spectral distribution of pair production and bremsstrahlung and to the total pair production cross section. Radiative corrections enter irto the final state scattering of emitted photons and as an increase of the virtual quarta number. The first effect is considered by introducing the Compton effect radiative correction cross section into the semi-classical radiation formula. The increase of the virtual quantum number is caused by the vacuum polarization of the nucleus and gives a change in the Bethe-Heitler cross-section form factor. The total pair-production cross section is given for the radiative correction distributions for k/sub 2/ ( k/sub max/, where k/sub max/ i s the smallest value of additional final state quantum k/sub 2/ detectable. (B.O.G.)
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