On the Structure of Luminescenting Centers in Lu2SiO5:Се Crystals
И. НуритдиновInstitute of Nuclear Physics, Academy of Sciences of Uzbekistan, Tashkent, 100214, UzbekistanЗ. У. ЭсановInstitute of Nuclear Physics, Academy of Sciences of Uzbekistan, Tashkent, 100214, UzbekistanK. Kh. SaidahmedovInstitute of Nuclear Physics, Academy of Sciences of Uzbekistan, Tashkent, 100214, Uzbekistan
ABI
Abstract
The absorption and luminescence spectra of cerium-activated lutetium oxyorthosilicate crystals Lu2SiO5:Се subjected to irradiation by gamma rays and neutrons and thermal treatment under reductive conditions have been studied. It has been demonstrated that the radiative and thermal treatment of crystals leads to the removal of oxygen from the oxygen heptahedrons surrounding cerium ions with the conversion of Ce1 centers into Ce2.
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