Abstract
Positron annihilation lifetime spectra in unirradiated and γ-irradiated pure LiF and heavily doped LiF∶Mg have been resolved into three components. The intensity of the intermediate lifetime component increases in proportion to theF-center concentration for both materials until saturation occurs (≈1.4×1017 cm−3 in LiF and ≈5.7×10−17 cm−3 in LiF∶Mg). The presence of a large positive ion vacancy concentration appears to have a much smaller effect than has been observed in KCl∶Ca.
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Work supported in part by the Research Corporation.
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Hsu, F.H., Mallard, W.C. & Fu, J.K. Positron annihilation in γ-irradiated pure and Mg-doped LiF. Appl. Phys. 4, 75–78 (1974). https://doi.org/10.1007/BF00884156
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DOI: https://doi.org/10.1007/BF00884156