Oscillator Strength of Electron-Type Color Centers in KCl Single Crystals Irradiated with Electrons and Protons

摘要

The absorption spectra of KCl single crystals irradiated with electrons and protons at energies of 15 and 100 keV and a particle flux ranging from 5 * 10~(12) to 10~(15) cm~(-2) are investigated. The absorption bands attributed to simple (F, F_a, K) and complex (M, R_2, R_4, N) color centers are identified in the spectra. The correlation dependences of the absorption coefficients for M, R_2, and R_4 centers on the absorption coefficient of F centers and the correlation dependences of the absorption coefficients for R_2 and R_4 centers on the absorption coefficient of M centers are established. The oscillator strengths are calculated for M, R_2, and R_4 color centers.