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2011•Nuclear TechniquesRequires access

Alpha counting method for determining the U and Th contents

Liu Xiao-wei

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Abstract

An α-counter with time coincidence function was developed to measure U and Th contents in geological samples for TL(thermoluminescence) and OSL(optically stimulated luminescence) dating.The U and Th contents in geological samples are calculated by α total counting rate and pair coincidence counting rate,and the annual dose rate can be estimated.Tests of the α-counter showed that the measurement results were comparable with that of a NaI γ spectrometer.

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What this paper is about

An α-counter with time coincidence function was developed to measure U and Th contents in geological samples for TL(thermoluminescence) and OSL(optically stimulated luminescence) dating.The U and Th contents in geological samples are calculated by α total counting rate and pair coincidence counting rate,and the annual dose rate can be estimated.Tests of the α-counter showed that the measurement results were comparable with that of a NaI γ spectrometer.

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Available abstract

An α-counter with time coincidence function was developed to measure U and Th contents in geological samples for TL(thermoluminescence) and OSL(optically stimulated luminescence) dating.The U and Th contents in geological samples are calculated by α total counting rate and pair coincidence counting rate,and the annual dose rate can be estimated.Tests of the α-counter showed that the measurement results were comparable with that of a NaI γ spectrometer.

Key concepts: Coincidence counting, Coincidence, Thermoluminescence, Optically stimulated luminescence, Spectrometer, Radiochemistry, Analytical Chemistry (journal), Thermoluminescence dating

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