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Effect of γ‐irradiation on mechanically activated and on non‐activated LiF
Author(s) -
Eifler R.J.,
Ebert I.,
Hennig H.P.,
Schmidt J.,
Kretzschmar U.
Publication year - 1984
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.2170190415
Subject(s) - irradiation , electron paramagnetic resonance , hydrogen , materials science , ion , spectroscopy , crystallography , chemistry , photochemistry , nuclear magnetic resonance , organic chemistry , physics , quantum mechanics , nuclear physics
Abstract By means of EPR spectroscopy lattice defects have been investigated, which had been produced in OH − containing LiF by mechanical activation and subsequent irradiation (mainly γ‐irradiation). The structure of irradiation‐induced hydrogen centers shows characteristic differences dependent on the kind of LiF: H s 0 (hydrogen atoms in anion vacancies) are created in mechanically activated LiF powders, whereas H i 0 (hydrogen atoms in interstitial positions) in LiF single crystals. In both the cases also F centers are produced besides other paramagnetic defects. The observed defects can be used for an estimation of the degree of distortion in mechanically activated LiF.