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The formation of interstitial halogen atoms (H centres) under the photodestruction of hole impurity Tl2+ centres in KCl crystals is observed by the method of thermally stimulated luminescence from 4.2 to 250 K. The existence of two new hole mechanisms of the H centre generation is established. It is shown that the H centres can be produced under recombination of holes (optically released from A2+ centres) with localized electrons (F or A° centres), as well as under a non‐recombination process caused apparently by the decay of holes into α and H centres.
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Zazubovich et al. (1976) studied this question.
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