Abstract
By means of the synchrotron radiation (SR) from the storage ring VEPP-2M of the Novosibirsk Institute of Nuclear Physics the excitation spectra of the stationary recombination luminescence (SRL) of a number of alkali halide (AH) crystals have been measured in the spectral region of 50–250 eV. The nature of the spectra is shown to be determined by the migration of low-energy electronic excitations from the volume of the crystal to its surface. A near-surface component of luminescence (besides the bulk one) has been found, which is one of the results of this migration. The sum of these two - bulk and near-surface - components determines the complexity of the shape of luminescence excitation spectra in AH crystals.
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