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Radiation effects in pile‐irradiated LiF crystals
Author(s) -
Shvarts K. K.,
Vitol A. Ya.,
Podin A. V.,
Kalnin D. O.,
Ekmanis Yu. A.
Publication year - 1966
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.19660180242
Subject(s) - irradiation , electron paramagnetic resonance , annealing (glass) , materials science , radiation , neutron , neutron temperature , absorption (acoustics) , thermal , radiochemistry , optics , chemistry , nuclear magnetic resonance , nuclear physics , composite material , physics , meteorology
A study is made of EPR, optical absorption (in the range 2 to 6 eV) and density variation of LiF crystals that have been irradiated in a reactor with doses up to 10 19 neutrons/cm 2 . In the irradiated crystals the main paramagnetic defects are F‐centres. Some conclusions are drawn as to irradiation‐induced expansion processes and the formation of colour centres. Some details of the aggregation process of F‐centres are clarified by thermal annealing of the irradiated crystals.