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Appl Radiat Isot. 2000 Jul;53(1):127-32. doi: 10.1016/s0969-8043(00)00123-8.

Laboratory application of NaI(Tl) gamma-ray spectrometry to studies of natural radioactivity in geophysics.

Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine

Chiozzi, De Felice P, Fazio, Pasquale, Verdoya

Affiliations

  1. Dipartimento per lo Studio del Territorio e delle sue Risorse, Settore di Geofisica, Universita di Genova, Italy.

PMID: 10879850 DOI: 10.1016/s0969-8043(00)00123-8

Abstract

We implemented a laboratory apparatus based on a NaI(TI) gamma-ray spectrometer for the assessment of naturally occurring radioactive materials. This apparatus is devoted to the quantitative determination of U, Th and K in rock and soil samples. We analysed the calibration procedures with particular emphasis to factors which affect accuracy and detection limits. A first series of measurements were compared to those obtained by means of high energy gamma-ray spectrometry. A discussion was made on factors restricting the approach based on scintillation spectrometry, such as secular equilibrium and radon encapsulation.

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