Spectral and kinetic analysis of thermoluminescence from manganiferous carbonatite
نویسندگان
چکیده
Thermoluminescence spectra of manganiferous carbonatite has been studied from 30 1C to 400 1C over the wavelength range from 200 nm to 800 nm. The natural thermoluminescence appears above 200 1C and shows continuous spectral distribution from 240 nm to 800 nm. Above 500 nm the emission appears in the form of line structure emission. These are reproduced by laboratory irradiation which also produces broad bands near 100 1C. The emission features are attributed to presence of Mn impurities in the carbonatite matrix. The spectral study was supplemented by kinetic analysis of the most prominent peaks and their kinetic features are reported. & 2013 Elsevier B.V. All rights reserved.
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