نتایج جستجو برای: natural radioactivity

تعداد نتایج: 491154  

Journal: :iranian journal of radiation research 0
a.a. fathivand nuclear science and technology research institute and national radiation protection department, radiation application research school, tehran, iran j. amidi nuclear science and technology research institute and national radiation protection department, radiation application research school, tehran, iran s. hafezi nuclear science and technology research institute and national radiation protection department, radiation application research school, tehran, iran

background: some particular areas contain natural radionuclide at levels much higher than those usually present in earth's crust. the radiological impact of the use of zirconium ore in zirconium industry is due to internal exposure of the lung by alpha particles and external exposure of the body by the gamma rays. the result of gamma spectrometry measurement of the concentrations of the na...

Journal: :environmental studies of persian gulf 2014
reza pourimani zahra nemati

the activity concentrations of 235u, 232th, 226ra, 40k and 137cs in ground and surface of drinking water resources in iranian city of arak were determined by gamma ray spectrometry with ahpge detector setup, coaxial p type and 8192 channels mca. the water samples differed in radioactivity content depending on their origin and place. in the drinking water samples from aman abad, mobarak abad, an...

Journal: :iranian journal of radiation research 0
a. islam department of environmental sciences, jahangirnagar university, savar, dhaka-1342, bangladesh a. begum health physics division, atomic energy centre, dhaka-1000, bangladesh s. yeasmin health physics division, atomic energy centre, dhaka-1000, bangladesh m.s. sultana department of environmental sciences, jahangirnagar university, savar, dhaka-1342, bangladesh

background: the aims of the study are to determine the radioactivity concentrations of 226ra, 238u, 232th and 40k in vegetables of a recently found high background radiation area of south-eastern part of bangladesh and to detect the radiological risks to human from intake of these vegetables. materials and method: 10 plant samples were collected randomly from different locations of the study ar...

K. Kant, M. Garg, N. Gupta, R. Gupta, R. Kumari,

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...

Journal: :Geoloski anali Balkanskoga poluostrva 2013

Journal: :Eos, Transactions American Geophysical Union 2007

Journal: :Journal of Environmental Radioactivity 2017

Journal: :Journal - American Water Works Association 1960

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