Resonance Excitation of Photoluminescence in Crystalline Uranyl Acetate Dihydrate


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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.

About the authors

V. S. Gorelik

Lebedev Physical Institute; Bauman Moscow State Technical University

Author for correspondence.
Email: gorelik@sci.lebedev.ru
Russian Federation, Moscow, 119991; Moscow, 105005

A. A. Loboiko

Lebedev Physical Institute; Bauman Moscow State Technical University

Email: gorelik@sci.lebedev.ru
Russian Federation, Moscow, 119991; Moscow, 105005

S. O. Nechipurenko

Lebedev Physical Institute; Moscow Institute of Physics and Technology (State University)

Email: gorelik@sci.lebedev.ru
Russian Federation, Moscow, 119991; Dolgoprudnyi, 141707

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