Browsing by Author "Sogut, Omer"

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Measurement of Gross Alpha and Gross Beta Activity Concentrations in Human Tooth
(Elsevier Sci Ltd, 2010) Sogut, Omer; Aydin, Mehmet Fatih; Kucukonder, Erdal; Zorer, Ozlem Selcuk; Dogru, Mahmut
The gross alpha and gross beta activity concentrations were measured in human tooth taken from 3 to 6 age-groups to 40 and over ones. Accumulated teeth samples are investigated in two groups as under and above 18 years. The gross alpha and beta radioactivity of human tooth samples was measured by using a gas-flow proportional counter (PIC-MPC 9604-alpha/beta counter). In tooth samples, for female age-groups, the obtained results show that the mean gross alpha and gross beta activity concentrations varied between 0.534-0.203 and 0.010-0.453 Bq g(-1), and the same concentrations for male age-groups varied between 0.009-1.168 and 0.071-0.204 Bq g(-1), respectively. (C) 2009 Elsevier Ltd. All rights reserved.
Pollution and Health Risk Evaluations From Gross Radioactivity in Drinking Waters in Reyhanli District, Hatay
(Springer int Publ Ag, 2022) Sogut, Omer; Alnashar, Muhammed Salih; Eyicil, Mustafa; Zorer, Ozlem Selcuk
The natural gross radioactivity concentrations in drinking water collected from the Reyhanli District, Hatay, were measured. The gross alpha/beta radioactivity levels were measured in August 2021. A proportional counter was used to determine gross alpha/beta radioactivity levels in drinking waters. The activity levels of gross alpha/beta in drinking waters ranged from 0.001 +/- 0.000 to 0.020 +/- 0.002 Bq/L and 0.015 +/- 0.003 to 0.715 +/- 0.126 Bq/L, respectively, according to results obtained from the activity measurements. The results of the gross beta radioactivities were found reasonably high compared to the results of the gross alpha activity levels. The measured gross alpha/beta activity concentrations are smaller than the 0.5-Bq/L and 1-Bq/L limit values recommended by WHO and EPA. The annual effective dose and excess lifetime cancer risk parameters were calculated using gross alpha/beta radioactivity concentrations.
Radiochemical Analysis of Milk Samples and Dose Exposures for Adults, Children, and Infants
(Asce-amer Soc Civil Engineers, 2018) Sogut, Omer; Boynukalin, Baris; Zorer, Ozlem Selcuk
The natural gross radioactivity in milk from farms in different locations in Van and in milk purchased from Kahramanmara markets were determined. In the milk samples, natural gross alpha and beta activity concentrations were measured. The evaporation and ashing procedures were applied to the milk samples collected from farms and markets. Nuclear spectroscopic systems containing gas-flow proportional counters were used to measure the gross alpha and beta activity concentrations of the milk samples. The gross radioactivity in milk from markets was generally lower than the gross radioactivity in milk from farms. The annual effective dose resulting from gross radioactivity for adults, children, and infants and excess lifetime cancer risk values were calculated. The highest total annual effective dose (AED) values were 1,105.9mSvy-1 for adults, 6,456.2mSvy-1 for children, and 10,267.0mSvy-1 for infants in milk samples. The excess lifetime cancer risk (ELCR) values from gross alpha and beta activities range from 0.010 to 3.870 in milk samples.
Radiological Hazard Assessment of Natural Gross Radioactivity in Some Cosmetic Products
(Taylor & Francis Ltd, 2018) Sogut, Omer; Zorer, Ozlem Selcuk; Reyhanlioglu, Hilal
Many kinds of cosmetic products were analyzed to determine gross radioactivity. In this study, gross alpha/beta radioactivity concentrations in 51 cosmetic samples were determined. The examined cosmetic products consist of blusher, eye shadow, lipstick, nail polish, shampoo, hand cream, cellulite cream, baby powder, soap, and toothpaste. The gross alpha-beta activity concentrations were measured with a nuclear spectroscopic system which contains gas-flow proportional counters. The highest gross alpha/beta activity concentrations were found in eye shadow samples of 1.621Bq g(-1) for alpha and 6.471Bq g(-1) for beta. The total effective doses due to gross radioactivity for skin were calculated. Although the effective dose of eye shadow samples had the highest value, the effective doses due to gross radioactivity concentrations in this study were found to be lower than the radiological limits given by the authorities.