A threshold for the displacement of an atom from the ZnSe lattice by electron bombardment has been observed at 240 keV. An electron of 240 keV transfers a maximum energy of 8.2 eV to the selenium atom and 10 eV to the zinc atom. The displacement is observed by the production at 85^∘{}K of a broad fluorescence band which is resolvable into two overlapping bands with peaks at 5460 and 5850 {}. The radiation damage anneals completely at a temperature of 160^∘{}K.
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Kulp et al. (1963) studied this question.
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