Abstract
Luminescence of self-trapped excitons, extrinsic recombinational luminescence and crossluminescence on the excitation by synchrotron radiation (7.7–30eV) have been investigated for KCl and CsCl crystals at 6–80 K. The following mechanisms of multiplication of electronic excitation are discussed: (i) decay of cation excitons with the formation of a double amount of anion excitons (KCl); (ii) photoionization of anions and cations with the subsequent formation of secondary excitons and electron-hole pairs by fast electrons.
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