Application of laser microspectral analysis for the determination of activating additives in alkali-halide single crystals

Autor: É. S. Zolotovitskaya, V. K. Shevchenko
Rok vydání: 1985
Předmět:
Zdroj: Journal of Applied Spectroscopy. 42:14-17
ISSN: 1573-8647
0021-9037
DOI: 10.1007/bf00661102
Popis: The authors applied microspectral analysis with the direct excitation of the spectra by laser radiation to the determination of the content of activators -- thallium and sodium -- in single crystals of sodium and cesium iodide. They focused radiation from a neodymium - activated yttrium aluminum garnet laser (LTIPCh-7 apparatus), operating in the pulsed Q-switch mode, on the surface of a single crystal in the form of a light spot with a diameter of 25-30 um. The plasma flame obtained from the evaporating substance was photographed with an ISP-30 spectrograph. The authors state that the procedures of laser spectral analysis developed here permit studying the distribution of the activator and selecting the working region of the crystal without destroying it; they are also rapid, and they economize on expensive materials.
Databáze: OpenAIRE
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