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Abstract

This paper describes a simple method to reduce the radon background component applied in environmental studies using gamma spectrometry. The radon component can be reduced by introducing either nitrogen gas or clean air into the detector chamber in order to create a positive pressure and further minimize radon intrusion from outside. This method shows that we can minimize the influence of radon daughter background such as 214Pb, 214Bi and 210Pb (from 238U), 212Pb, 212Bi and 208Tl (from 232Th). By the way, the detection limit of the gamma spectrometry is discussed.



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Article Details

Issue: Vol 19 No 4 (2016)
Page No.: 126-130
Published: Dec 31, 2016
Section: Natural Sciences - Research article
DOI: https://doi.org/10.32508/stdj.v19i4.623

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Creative Commons License

Copyright: The Authors. This is an open access article distributed under the terms of the Creative Commons Attribution License CC-BY 4.0., which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 How to Cite
Tran, T., Chau, T., Ferreux, L., & Lépy, M. (2016). Improvement of the detection limit by radon background reduction method. Science and Technology Development Journal, 19(4), 126-130. https://doi.org/https://doi.org/10.32508/stdj.v19i4.623

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