نتایج جستجو برای: radiological hazards
تعداد نتایج: 73380 فیلتر نتایج به سال:
Background: Vegetation (food stuff) is grown in soil that contains many radioactive elements such as 238U (uranium), 232Th (thorium) and 40K (potassium), which may get deposited either due to radioactive fallout or/and by absorption from the soil and can pose serious health hazards. Materials and Methods: Natural radioactivity, radiological hazards and annual effective dose assessment was carri...
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...
Radioactivity of terrestrial radionuclides Ra, Th and K in phosphate rock samples has been measured using gamma ray spectrometry system with an HPGe detector. The samples showed fairly high mean concentrations, 410±39 Bq.kg of Ra, 7.9±0.95 of Th and 37.6±4 of K. Mean absorbed gamma dose rate of 181.9±20 nGy.h was measured in air. Assessment of radiological hazards was made by calculating radium...
The fundamental goal of this study is to measure the level radioactivity in soil area around Al-Hadbaa cement plant, also evaluate radiological hazard radionuclide, gamma-spectroscopy with an HPGe detector crystal diameter 70.6 mm and length 70 has been used estimate specific activity natural radionuclides 226Ra, 232Th, 40K, artificial 137Cs fifteen samples collected. results show that average ...
radiological features of human infection with avian influenza a h7n9 virus: a report of three cases.
human infection with avian influenza a h7n9 virus has emerged in china with high morbidity rates. patients usually present with severe and rapidly progressive pneumonia. therefore, radiological findings are important to diagnose and evaluate disease severity. the clinical characteristics of three new cases of h7n9 virus infection were analyzed, especially the radiological findings, and previous...
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