![Comparative estimations of ^1^3^7Cs distribution in a boreal forest in northern Sweden using a traditional sampling approach and a portable NaI ... from: Journal of Environmental Radioactivity]](https://www.ebooknetworking.net/books/noimage.jpg)
Comparative estimations of ^1^3^7Cs distribution in a boreal forest in northern Sweden using a traditional sampling approach and a portable NaI ... from: Journal of Environmental Radioactivity]
Book Details
Author(s)A.H. Plamboeck, T. Nylen, G. Agren
PublisherElsevier
ISBN / ASINB000P6XLOQ
ISBN-13978B000P6XLO6
AvailabilityAvailable for download now
MarketplaceUnited States 🇺🇸
Description
This digital document is a journal article from Journal of Environmental Radioactivity, published by Elsevier in 2006. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
Description:
Field-portable detectors have been frequently used in routine monitoring and hazard assessment studies. However, there have been few thorough attempts to evaluate their potential as an alternative to the traditional procedure of collecting samples and analysing them in the laboratory. Thus, in this study the two approaches were compared in terms of their utility for monitoring ^1^3^7Cs activity in the Nyanget catchment in northern Sweden. The objectives were: (i) to determine the ^1^3^7Cs activity in soils associated with three types of vegetation, (ii) to map the geographical distribution of ^1^3^7Cs using the portable NaI detector connected to a GPS system (GDM-40), (iii) to identify ^1^3^7Cs anomalies in the catchment, and (iv) to compare the measurements obtained with the NaI detector and traditional sampling followed by laboratory analysis. Our results demonstrate that the GDM-40 has very good potential for making ^1^3^7Cs inventories and for detecting ^1^3^7Cs anomalies within large areas. The GDM-40 measurements identified differences between different hydrological areas that were not determined with the soil sampling method. The GDM-40 method is much faster than a traditional soil sampling method. However, soil sampling cannot be totally excluded because it is needed to calibrate the GDM-40. The agreement between the ^1^3^7Cs activity values obtained by the two approaches was 20% which is good in the field where so many factors vary.
Description:
Field-portable detectors have been frequently used in routine monitoring and hazard assessment studies. However, there have been few thorough attempts to evaluate their potential as an alternative to the traditional procedure of collecting samples and analysing them in the laboratory. Thus, in this study the two approaches were compared in terms of their utility for monitoring ^1^3^7Cs activity in the Nyanget catchment in northern Sweden. The objectives were: (i) to determine the ^1^3^7Cs activity in soils associated with three types of vegetation, (ii) to map the geographical distribution of ^1^3^7Cs using the portable NaI detector connected to a GPS system (GDM-40), (iii) to identify ^1^3^7Cs anomalies in the catchment, and (iv) to compare the measurements obtained with the NaI detector and traditional sampling followed by laboratory analysis. Our results demonstrate that the GDM-40 has very good potential for making ^1^3^7Cs inventories and for detecting ^1^3^7Cs anomalies within large areas. The GDM-40 measurements identified differences between different hydrological areas that were not determined with the soil sampling method. The GDM-40 method is much faster than a traditional soil sampling method. However, soil sampling cannot be totally excluded because it is needed to calibrate the GDM-40. The agreement between the ^1^3^7Cs activity values obtained by the two approaches was 20% which is good in the field where so many factors vary.
