Radium Equivalent Activity
Assessment of Human Exposure to Natural Source of Radiation on the Soil in Tongaren Constituency of Bungoma County, Kenya
... the activity of uranium, thorium, potassium, radium and their ...The activity concentration level for 226 Ra, 232 Th, 238 U and 40 K in soil samples were determined using gamma ray spectrometer with ...
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Natural Radionuclide Concentrations and Radiological Impact Assessment of River Sediments of the Coastal Areas of Nigeria
... The radium equivalent and the results of other radio- logical indices as shown in Table 3 revealed that despite sediment samples from Cross River having the maximum level of radium equivalent ...
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Gamma Dose Rate And Effective Dose Equivalent Due To Gamma Radiation From Granite Samples Collected From Prominent Quarry Sites In Oyo State, Nigeria
... the activity concentrations ranging from ...the activity concentration of 226 Ra, 232 Th and 40 K in granite samples from Morlab and Alaguntan quarry sites located in Igbeti is higher than that of Kopek, ...
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Gamma Radiation Measurements in Tunisian Marbles
... rate, radium equivalent activity, external and internal hazard indices, we conclude that the radioactivity levels of marbles are within the interna- tional recommended values from world-wide areas ...
5
Hazard Indices and Age Group Parameters of Powder Milk Consumed in Iraq
... Fe, Mn, Cu, and Pb are essential at very low concentrations for the survival of all forms of life [6]. In the Arab World (Iraq), no studies of radioactivity in powdered infant’s milk have been carried out and no ...
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DETERMINATION OF RADIOACTIVITY CONCENTRATION OF NATURAL RADIONUCLIDES AND RADIATION HAZARD INDICES IN SOIL SAMPLES FROM OWERRI, SOUTH EAST NIGERIA
... U and 232 Th respectively. The Absorbed Dose Rate, External Hazard Index and Internal Hazard Index were evaluated using the activity concentrations of 40 K, 238 U and 232 Th. The results showed that the mean value ...
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Measurements of Natural Radio activity Levels and Associated Health Hazard Indices in Some Portland Types of cement, Ethiopia
... Therefore, keeping in view the natural risk of radiation, it is necessary to measure the natural environmental radiation levels and this study will measure the radiation levels in types of cement and semi-processed types ...
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The Experimental Gamma Radiation Dose Rate for Radiation Hazard into Adhesive Building Materials in Saudi Arabia
... the activity concentration of Ra-226, Th-232 and K-40 was between ...parameters radium equivalent activity, gamma index, absorbed dose rate and the annual exposure rate, were calculated to ...
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Evaluation of natural radioactivity of soil samples from different regions of Wassit governorate
... specific activity of 238 U, 232 Th, and 40 K, as well as radium-equivalent activity, rate of absorbed gamma dose, indoor and outdoor annual effective dose rates, external annual effective ...
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Radioactivity Distributions in Soils from Habiganj District, Bangladesh and their Radiological Implications
... Habiganj District is a border district between Bangladesh and India. Although it is important from both geological and natural resources perspectives, information about radioactivity have not been measured This study ...
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Assessment of Natural Radioactivity Levels and Radiation Hazards for Soil Samples Used in Erbil Governorate, Iraqi Kurdistan
... The radium equivalent activity (Ra eq ), absorbed gamma dose rate (D), external hazard (H ex ), internal hazard (H in ), gamma radiation representative level index (I γ ), and the outdoor and indoor ...
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Natural Radioactivity and Dose Assessment for Brands of Chemical and Organic Fertilizers Used in Saudi Arabia
... spectively. Radium equivalent activity is not exceed 370 Bq/kg, the maximum permissible limit for radiation dose for all present samples. Average values of the three natural radionuclides measured in ...
5
Natural Radioactivity Measurement and Assessment of Radiological Hazards in Some Building Materials Used in Bangladesh
... The radium equivalent activity, the ab- sorbed dose rate, annual effective dose, external and internal hazard indices, gamma index, alpha index, annual gonadal dose equivalent and excess life- ...
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Environmental Radiation Measurement and Assessment of Natural Radioactivity in Soil, Water and Vegetation
... Mean radium equivalent activity (Raeq), external radiation hazard index (Hex), internal radiation hazard in- dex (Hin) and absorbed dose rate (D) for the area under study were deter- mined as ...
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Determination of Natural and Artificial Radionuclides in Soil Samples of Bhola District, Bangladesh
... 0.476562, 584.4557 µSv respectively. The average value of gamma dose rate obtained in this study is less than to the world average 57 nGy/h. All values obtained for radium equivalent activity are ...
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Natural Radioactivity Assessment and Radiological Hazards in Soils from Qarun Lake and Wadi El Rayan in Faiyum, Egypt
... hazard radium-equivalent activity index, external and internal indices, radioactivity level index, absorbed dose rate, annual effective dose rate and total absorbed dose rate associated with ...
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Measurement of Natural Radioactivity in Sand Samples Collected from Ad Dahna Desert in Saudi Arabia
... germanium (HPGe) detector coupled with a multi-chan- nel analyzer (MCA). The measurement procedures and activity calculations performed, were as described by [14]. Similarly, the assessment of radiation hazards: ...
5
Natural Radioactivity Measurement and Dose Assessment in Soil Samples from Some Selected Areas of Mali
... The gamma-ray activities were measured by using a shielded planar Hyper-Pure Germanium (HPGe) detector and associated electronics. The detector, a BE 3830 model coupled to an 8192 channel analyser piloted by Genie 2000 ...
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The Effect of Soil Radioactivity in Pollution
... Results: The natural radioactivity doses of soil in the studied samples resulted in 42.92 ±4.03 nGy h-1 (average absorbed dose rate), 86.79±8.26 Raeq per Bqkg-1 (radium equivalent activity), ...
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Study of Radionuclides and Radon Exhalation Rate in Soil and Sand Samples from Tiba, Luxor, Governorate
... the radium equivalent activity of building materials in many countries [4] [5] ...the activity levels of 226 Ra, 232 Th and 40 K in soil and sand samples collected from Tiba ...
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