Integrating nuclide specific and dose rate based methods for airborne and ground based gamma spectrometry

Sanderson, D. , Sanada, Y., Cresswell, A. , Xu, S., Murphy, S., Nakanishi, C. and Yamada, T. (2015) Integrating nuclide specific and dose rate based methods for airborne and ground based gamma spectrometry. In: Proceedings of the International Symposium on Radiological Issues for Fukushima's Revitalized Future. Kyoto University Research Reactor Institute, pp. 18-23. ISBN 9784990681531

115978.pdf - Accepted Version



Results of joint airborne survey work conducted by SUERC and JAEA are presented, for areas to the north and south of Fukushima Daiichi using four different airborne survey systems, cross calibrated at reference sites in Scotland and near Namie. Airborne measurements were made at a series of different survey heights using three high volume NaI based spectrometers, and for the first time using a high resolution system based on the Ortec IDM HPGe spectrometer. The JAEA data sets were analysed using the same methods applied to national scale mapping in Japan since the accident. The SUERC data sets were analysed using nuclide specific approaches validated in the European ECCOMAGS project. The data presented on a digital terrain model show marked correspondence with landscape features, which both suggest the initial deposition processes, and indicate trajectories for future re-deposition by natural processes. All data sets are traceable to each other, and to the ground based calibration sites. Nuclide specific inventories have been defined, which can serve as a future reference to evaluate environmental change.

Item Type:Book Sections
Keywords:Airborne monitoring, Manned helicopter, Accident of Fukushima Daiichi NPS
Glasgow Author(s) Enlighten ID:Murphy, Mr Simon and Sanderson, Professor David and Xu, Dr Sheng and Cresswell, Dr Alan
Authors: Sanderson, D., Sanada, Y., Cresswell, A., Xu, S., Murphy, S., Nakanishi, C., and Yamada, T.
Subjects:G Geography. Anthropology. Recreation > GE Environmental Sciences
Q Science > QC Physics
College/School:College of Science and Engineering > Scottish Universities Environmental Research Centre
Publisher:Kyoto University Research Reactor Institute
Copyright Holders:Copyright © 2015 The Authors
Publisher Policy:Reproduced with the permission of the publisher.
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