M-Zentrenbildung in röntgenbestrahltem KCl |
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Authors: | G Horn H Peisl |
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Institution: | 1. Physikalisches Institut der Technischen Hochschule Darmstadt, Deutschland
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Abstract: | The equilibrium betweenF- andM-center concentration in KCl after X-irradiation at temperatures between 77 °K and 298 °K has been studied. At low temperatures (<200 °K) onlyF-centers which are formed statistically as nearest neighbours give aM-center. At higher temperaturesF-centers within a certain sphere of interaction with a radiusr formM-centers. The temperature dependance of this radiusr has been evaluated. The equilibrium constantK depends on the temperature in the form K=K0exp(-Q/kT). The activation energy was determined to be Q=(0.5±0.1) eV. |
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