Destructive and non-destructive measurements of NORM in monazite-rich sands of Brazil
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Regan, Patrick, Larijani, Cyrus Kouroush, Schwendner, P, Cockell, C, Ivanov, P, Russell, B and Aitken-Smith, P (2017) Destructive and non-destructive measurements of NORM in monazite-rich sands of Brazil Radiation Physics and Chemistry, 140. pp. 180-185.
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Abstract
The specific activity concentration of eight sand samples from three locations in the State of Espirito Santo, South Eastern Brazil have been determined for members of the 238U and 232Th decay series, as well as the primordial radionuclide 40K. The calculated activity concentration values and associated radiation hazard indices were evaluated. The thorium decay chain activities are significantly higher than that of comparable studies from other areas of the world, leading to calculated absorbed dose rate in air and radium equivalent activities which are higher than world averages. This is attributed to the geology of the monazite material which is ubiquitous in this region of Brazil. Trace elemental analysis was also carried out on these samples using Inductively Coupled Plasma Mass Spectrometry (ICP-MS).
| Item Type: | Article | ||||||||||||||||||||||||
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| Subjects : | Physics | ||||||||||||||||||||||||
| Divisions : | Faculty of Engineering and Physical Sciences > Physics | ||||||||||||||||||||||||
| Authors : |
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| Date : | 17 January 2017 | ||||||||||||||||||||||||
| DOI : | 10.1016/j.radphyschem.2017.01.010 | ||||||||||||||||||||||||
| Copyright Disclaimer : | © 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ | ||||||||||||||||||||||||
| Uncontrolled Keywords : | NORM Monazite sands Environmental radioactivity Gamma emitting radionuclides | ||||||||||||||||||||||||
| Depositing User : | Symplectic Elements | ||||||||||||||||||||||||
| Date Deposited : | 08 Mar 2017 18:42 | ||||||||||||||||||||||||
| Last Modified : | 16 Jan 2019 17:13 | ||||||||||||||||||||||||
| URI: | http://epubs.surrey.ac.uk/id/eprint/813724 |
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