There is concern that work scenarios on the tantalite mining sites in Oke-Ogun, Oyo State, Nigeria may cause occupational radiation exposure of workers due to enhanced concentrations naturally occurring radionuclides some process materials. A prior radiological assessment activities was carried out determine if and which require protection measures. Samples materials involved, comprising (tanta...

The Red Sea is a deep semi-enclosed and narrow basin connected to the Indian Ocean by a narrow sill in the south and to the Suez Canal in the north. Oil industries in the Gulf of Suez, phosphate ore mining activities in Safaga-Quseir region and intensified navigation activities are non-nuclear pollution sources that could have serious radiological impacts on the marine environment and the coast...

A survey was carried out to determine activity concentration levels and associated dose rates from the naturally occurring radionuclides 232Th, 238U and 40K, in the various geological formations of Cyprus, by means of high-resolution gamma ray spectrometry. A total of 115 representative soil samples were collected from all over the bedrock surface of the island, based on the different lithologi...

Introduction: The present study was conducted to measure the specific activities of 226Ra,232Th and 40K, in some samples of nuts collected from the local markets in Iraq. In addition, this study sought to calculate the annual effective dose of gamma ray to children and adults. Material and Methods: The quantification of radionuclides was accomplished by gamma spectrometry NaI (Tl) detector. Res...

The change of natural ionizing radiation and the radon exhalation rates from typical building materials in underground parking lots are presented article. activity concentration radionuclides 232Th, 226Ra, 40K six important types construction materials, which mostly used Lithuania, were analyzed using high-resolution gamma spectroscopy. highest values found concrete ferroconcrete samples: 226Ra...

Background: The natural radionuclides are always present in soil and care needs to be taken to minimize the radiation dose to humans. These radionuclides are mostly gamma ray emitting radionuclides which contribute to the radiation dose in long term behavior of radionuclides in soil. Health hazards associated with natural radioactivity are of great concern and it is necessary to assess risk due...

Penelitian ini bertujuan untuk menentukan aktivitas spesifik 226Ra, 232Th dan 40K yang terdapat pada sampel fly ash, bottom tanah di sekitar PLTU industri gula. Masing – masing tiga ash diambil dari silo, Sembilan radius (0-4) km PLTU. Pencacahan dilakukan menggunakan spektrometer gamma dengan detektor HPGe. Sampel dicacah selama 17 jam, diolah software Maestro. Hasil penelitian menunjukkan bah...

The study investigates commercially available negative ion clothing, and evaluations are made using gamma-ray spectroscopy Geant4 Monte Carlo simulations. Observed to contain naturally occurring radioactive material (NORM), of the radiological risk arising from use these as items everyday wear, undergarments in particular. Organ doses were simulated MIRD5 mathematical female phantom, with incor...

This paper aims to estimate a potential radiological risk from different kinds of coals used for domestic heating in Serbia, by measuring the activity concentration radionuclides and radon exhalation rate. The obtained mass rate ranges (5.3 ? 3.1) mBqkg?1s?1 (70.3 9.4) mBqkg ?1s?1 was highest lignite type coal. It is estimated that coal stored basement could contribute up 50 Bqm?3 indoor at gro...