Naturally occurring radioactive materials (NORMS) and fallout 137Cs were estimated in surface soils from the highly mineralized Singhbhum region of Eastern India. The activity concentrations varied from 50.67-109.14 Bq/kg (238U), 48.12142.55 Bq/kg (226Ra), 28.73-89.78 Bq/kg (232Th), 494.84-1121.36 Bq/kg (40K) and 1.8-7.48 Bq/kg (137Cs). Correlation between radionuclides was studied. 232Th/238U ...

Soil samples from three major towns and a holiday settlement in uranium-rich western Namibia have been analysed using a HPGe detector for radioactivity due to 238U, 232Th and 40K. The average activity concentrations of the radionuclides in the towns and settlement vary from a low of 18.6 ± 4.6 to a high of 69.6 ± 26.3 Bq kg−1 for 238U, 23.8 ± 8.4 to 91.1 ± 41.0 Bq kg−1 for 232Th and 460.3 ± 76....

Background: The activity concentrations of natural radionuclides in soil around a coal-fired thermal power plant of northwest China were investigated for assessing the radioactivity level. Materials and Methods: Soil samples were collected around the coal-fired thermal power plant and their radioactivity levels were determined using gamma ray spectrometry. Radiation hazards were assessed by rad...

Nesse trabalho foi utilizada a técnica da espectrometria gama de alta resolução com detector HPGe e o pacote software GENIE 2000 para determinação concentração atividade dos radionuclídeos 226Ra, 232Th 40K presente em amostras solo, risco radiológico visitantes do Núcleo Piraquara, importante Trilha Ecoturismo Parque Estadual Pedra Branca – RJ. Os resultados apresentaram concentrações atividade...

the radionuclides 226ra, 232th and 40k concentrations measured as well as radiological parameters, for 14 granite samples that use in iran as building material were calculated. the measurements of the radioactivity concentrations were carried out at nuclear physics laboratory university of tabriz. this subject is important in environmental radiological protection, since granites are extensively...

The surveys of natural gamma-emitting radionuclides in rocks and soils from the Ezine plutonic area were conducted during 2007. Direct dose measurement using a survey meter was carried out simultaneously. The present study, which is part of the survey, analysed the activity concentrations of U, Th and K in granitoid samples from all over the region by HPGe gamma spectrometry. The activity conce...

Background: This study aimed to investigate the radiation hazard indices from sand samples of Ma’rib Governorate in Yemen, where majority oil and gas facilities are installed. Methods Materials: Thirty five desert Yemen were collected tested their by using High Purity Germanium (HPGe) detector. Results: Based on measurement concentrations 226Ra, 232Th, 40K, radium equivalent activity (Raeq), co...

In the present work, we determined activity concentrations of ten Medicinal herbs using gamma spectrometry. The radioactivity concentration 226 Ra, 232 Th, 40 K and 137 Cs were 2.82, 0.63, 984.32, 0.28 Bq/kg, respectively. These doses are not hazardous to general public's health. mean values radium equivalent (Raeq), absorbed dose rates (D), annual effective (De) external hazard index (Hex) 79....