Indirect radiation excitation of cationic sublattice of alkali-halide filamentary crystals

Methods of absorptional spectroscopy and measurements of radiation rise of ionic conductivity have been used in investigation of mechanism of cationic Frenkel pairs (CFP) generation in alkali-halide filamentary crystals of KBr. Interconnection has been found between the radiation processes of creation and destruction of hole centres and CFP generation. Under the experimental conditions in question the dominant role of the indirect way of radiation exciting of the cationic sublattice (CS) - through the anionic one- has been demonstrated. The conclusion concerns the fact that the concrete realization of any of the two ways of ionic crystals CS excitation (indirect or direct) depends upon the experimental conditions