Horia V. ALEXANDRU1*, Marinel DAN2, Constantin-Paul GANEA3
Abstract. The paper contains a synthesis of research results in the study of the level of environmental radioactivity obtained by using spectrometric technique, of high precision and high sensitivity, of atomic and nuclear radiations. Spectrometric technique were used to measure
gamma nuclear radiation in determining the radioactivity of ash samples taken from the dumps of the ROMAG TERMO Drobeta Turnu Severin thermal power plant, Mehedinți county. By gamma spectrometry with high energy resolution semiconductor detector, high efficiency and protection for the cosmic radiation background (low radiation background) was determined the radioactivity of ash samples, taken from two coal dumps from ROMAG TERMO Drobeta Turnu Severin power plants, Romania. The results showed that the activities of the main radionuclides in the environmental samples including,
228Ac (7.5 ÷ 18.7 Bq/kg),
226Ra (6.2 ÷ 21.3 Bq/kg),
137Cs (0.3 ÷ 1,
53(Bq/kg) and
40K (169 ÷ 362 Bq/kg) are among the lowest values found compared to the maximum allowed limits.
Keywords: environmental radioactivity, spectrometric techniques, radionuclides.
DOI 10.56082/annalsarsciphyschem.2021.1.38
1 Professor, PhD, Valahia University of Targoviste (UVT), Academy of Romanian Scientists
2 Multidisciplinarity Research Institute for Science and Technology of UVT(ICSTM-UVT), ivpopes@yahoo.com
3 Physicist, PhD, Center for Research and Innovation for Defense, CBRN and Ecology, (mursapetru_73@yahoo.com)
4 Chemist, PhD, Research and Innovation Center for CBRN Defence and Ecology.
PUBLISHED in Annals of the Academy of Romanian Scientists Series on Physics and Chemistry, Volume 6, No1