Activity Concentrations Of Environmental Samples Collected In Samarkand Region Of Uzbekistan

Аннотация

The results of the investigations of the activity concentration of natural radionuclides in certain building materials and foodstuff samples obtained from the Nurabad district of the Samarkand region of Uzbekistan are presented. The gamma radiation spectra of the samples were measured in Marinelli beaker geometry on γ- spectrometer with a Ge(Li) detector and energy resolution 6% on the 1332 keV line of 60Co. A personal computer and standard computer programs were used to accumulate and process the spectra. The characteristic density of the samples ranged from 140 to 1810 g/l. The activity concentration of 40K was observed to be comparatively higher than that of both 226Ra and 232Th in all the studied samples. The results reveal that the low activity of 137Cs in the samples is attributed due to its half-life decay period. KEYWORDS Radionuclides, gamma radiation, spectrometer, building material, Uzbekistan. The US A Journals Volume 02 Issue 10-2020 138 The American Journal of Applied Sciences IMPACT FACTOR (ISSN – 2689-0992) 2020: 5. 276 Published: October 31, 2020 | Pages: 138-144 Doi: https://doi.org/10.37547/tajas/Volume02Issue10-20 OCLC - 1121105553