Positron annihilation in alkali-halide crystals after electron irradiation |
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Authors: | A A Vorobiev K P Arefiev S A Vorobiev |
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Institution: | (1) Nuclear Physics Research Institute, Tomsk, USSR |
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Abstract: | The effect of electron beam irradiation on the positron annihilation in KCl, KBr, NaCl single crystals was investigated. The
narrowing of the angular correlation curves increases up to the saturation value with the absorbed radiation dose. The shape
of the received narrow components differs from the narrow component measured in the additively colored samples. This phenomenon
shows the considerable influence of the hole centres upon the positron annihilation in ionic crystals.
Paper presented at 3rd Internat. Conf. Positron Annihilation, Otaniemi, Finland (August 1973). |
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Keywords: | Positron annihilation Ionic crystals Color centres |
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