JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, vol.302, no.1, pp.361-373, 2014 (SCI-Expanded)
As higher radiation levels are associated with granodiorite area and the maps are more practical to interpret the results of radiological survey, the distributions of the specific activities of Ra-226, Th-232, K-40 in soil-granite samples and indoor Rn-222 activities throughout the granodiorite area of Bergama (Pergamon) were mapped in detail. Samples from the granites and soils underlying Kozak-Bergama (Pergamon) granodiorite area were collected and analyzed by HPGe gamma spectrometry system, while indoor radon levels in 20 dwellings of rural areas at this area were measured by the alpha track etch integrated method. This paper represents the baseline maps of natural radioactivity levels (Ra-226, Th-232, K-40 and Rn-222) and corresponding absorbed dose rates from outdoors terrestrial gamma radiation.