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Validation of a novel radiation mapping platform for the reduction of operator-induced shielding effects

Research output: Contribution to journalArticle

Original languageEnglish
Pages (from-to)1097-1110
Number of pages14
JournalJournal of Radiological Protection
Volume38
Issue number3
Early online date14 Aug 2018
DOIs
DateAccepted/In press - 26 Jul 2018
DateE-pub ahead of print - 14 Aug 2018
DatePublished (current) - Sep 2018

Abstract

With extensive remediation currently ongoing because of the Fukushima Daiichi Nuclear Power Plant accident, there exists the even greater need to provide a system with which the distribution of radiation (specifically radiocesium) can be rapidly determined across extensive areas, yet at high (metre or sub-metre) spatial resolutions. Although a range of potential survey methods have been utilised (e.g. fixed-wing aircraft, helicopter, vehicular and more-recently unmanned aerial vehicle) to characterise the distribution of radiological contamination, ground-based (on-foot) methods that employ human operatives to traverse sites of interest remains one of the primary methods through which to perform routine radiological site surveys. Through the application of a newly-developed platform carried as a backpack-contained unit, it was possible to map sites at twice the rate previously possible - reducing not only the exposure time of the operator to ionising radiation, but also dramatically reducing the level of radiation attenuation (introduced by the operator) onto the detector. Like magnetometry platforms used during geological ore prospecting, this system was similarly boom-based, extending sideways away from the central operator. While conventional radiological survey platforms require a correction be performed on the data to account for the carrier (aircraft, vehicle or human) interception and attenuation incident radiation - this system is shown to not require such a retrospective correction.

    Research areas

  • bodily attenuation, contamination characterisation, FDNPP, Fukushima, radiological mapping, site-wide monitoring

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    Rights statement: This is the final published version of the article (version of record). It first appeared online via IOP at http://iopscience.iop.org/article/10.1088/1361-6498/aad5f2/meta . Please refer to any applicable terms of use of the publisher.

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