Till startsida
Sitemap
To content Read more about how we use cookies on gu.se

Long-term investigation of anthropogenic and naturally occurring radionuclides at reference sites

In case of an accidental release of radioactive substances it is important to be able to make a fast, but reliable, estimation of the radiation dose to people in the affected area. This estimation may be made with greater accuracy if the ambient dose levels within the particular area have been recognised. Measurements of the extent of the release, and possible subsequent contamination, may also be facilitated if predetermined (reference) sampling sites have been chosen and examined with regard to background radiation and occurrence of radionuclides. A continuous monitoring of background data will also make it possible to follow early trends in the release and deposition. 

Starting in 1996 the Department of radiation physics at Göteborg University now has about 30 reference sites, in the region around Göteborg (within 150 km) as well as within the town, for soil sampling, field gamma and intensimeter measurements. The measurements, which have been carried out approximately every second year since 1996, have been used to compare model calculations of deposition with measurements, to establish a time-series of data and to test a time-dependent model for migration of 137Cs in soil.

In addition to serve as background data, the data from the reference sites may also be used to estimate the radiation dose from radionuclides in the ground. These estimations may then be compared to measured data from the TLD-project in which the radiations dose to a sample of the population is measured with TLD (Thermo Luminescence Dosimetry).

S. Almgren, E. Nilsson, B. Erlandsson & M. Isaksson. GIS supported calculations of 137Cs deposition in Sweden based on precipitation data. Science of the Total Environment, Vol. 368, Iss. 2-3, 2006

S. Almgren & M. Isaksson. Vertical migration studies of 137Cs from nuclear weapons fallout and the Chernobyl accident. Journal of Environmental Radioactivity, 91 (1-2), 2006

S. Almgren, E. Nilsson, B. Erlandsson & M. Isaksson. GIS supported calculations of 137Cs deposition in Sweden based on precipitation data. Nordic Society for Radiation Protection, XIV regular meeting, Aug. 27-31 2005, Rättvik, Sweden

S. Almgren & M. Isaksson. Migration studies of 137Cs from nuclear weapons fallout and the Chernobyl accident. Nordic Society for Radiation Protection, XIV regular meeting, Aug. 27-31 2005, Rättvik, Sweden

M. Isaksson, S. Almgren, B. Erlandsson, H. Grundin & R. Vesanen. The radiation environment in western Sweden. Svensk förening för radioekologi. Konferens om radioekologi och strålning i miljön (Swedish society of radioecology, Conference). Mar. 11-12 2004, Uppsala, Sweden

M. Isaksson, H. Grundin & R. Vesanen. The radiation environment in western Sweden. Nordic Society for Radiation Protection, XIII ordinary meeting, Aug. 25-29 2002, Åbo, Finland

Page Manager: Johan Spetz|Last update: 6/25/2015
Share:

The University of Gothenburg uses cookies to provide you with the best possible user experience. By continuing on this website, you approve of our use of cookies.  What are cookies?