Resonance Excitation of Photoluminescence in Crystalline Uranyl Acetate Dihydrate |
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| Authors: | V S Gorelik A A Loboiko S O Nechipurenko |
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| Institution: | 1.Lebedev Physical Institute,Russian Academy of Sciences,Moscow,Russia;2.Bauman Moscow State Technical University,Moscow,Russia;3.Moscow Institute of Physics and Technology (State University),Dolgoprudnyi,Russia |
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| Abstract: | A method for rapid identification of uranyl compounds based on resonance fiber-optic photoluminescence (PL) excitation by ultraviolet-laser or LED radiation is proposed. This method was used to measure the PL spectra of an extremely small volume (10–9 cm3) of crystalline uranyl acetate dehydrate UO2(CH3COO)2 ? 2H2O with an exposure of 10–3 s. Semiconductor LEDs with wavelengths of 369, 385, 410, and 466 nm and a repetitively pulsed nitrogen laser with a lasing wavelength of 337 nm served as sources of excitation radiation. The operating range of a small-sized minispectrometer used in these experiments was 200–1000 nm. |
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