Radiation Defects in $CaF_2-CaO$ Crystals

The spectral and kinetic parameters of electron-pulse-initiated transient absorption of oxygen-doped $CaF_{2}$ crystals were studied using pulsed spectrometry with a nanosecond time resolution. It is shown that the formation of a $M_{A}^{+}$ color centers in $CaF_{2}$-0.01M%CaO crystals occurs by thermally activated diffusion of the vacancies. Activation energy of $M_{A}^{+}$ color centers formation process of 0.4 eV is established