نتایج جستجو برای: environmental radioactivity

تعداد نتایج: 380512  

Journal: :iranian journal of public health 0
b.khademi ma. hanjani

the existence of ra 226 is proved and measured by radiom emanation-method in waters and food products of north , north west and north – east of iran. a total of 126 water, 249 food and 22 air samples have been examined. the concertration of ra 226 in waters found to be 0.01 to 1.104 pci/1 and in food products from 0.01 to pci/gr. ash.the amount found in due ranges from 0.003 to 0.227 pci/m 3.it...

Journal: :American Journal of Public Health and the Nations Health 1963

Journal: :Japanese Journal of Health Physics 2004

Journal: :iranian journal of public health 0
vahid changizi dept. of technology of radiology and radiotherpay, allied medical sciences school, tehran university of medical sciences, tehran, iran. elham shafiei science and research campus, islamic azad university, tehran, iran. mohammad reza zareh dept. of physics, faculty of science, isfahan university, isfahan, iran.

natural background radiation is the main source of human exposure to radioactive material. soils naturally have radioactive mineral contents. the aim of this study is to determine natural ((238) u, (232) th, (40) k) and artificial ((137) cs) radioactivity levels in wheat and corn fields of eilam province.hpge detector was used to measure the concentration activity of (238) u and (232) th series...

Journal: :Journal of the Japan Veterinary Medical Association 1998

Journal: :iranian journal of radiation research 0
s. ashrafi department of nuclear physics, faculty of physics, university of tabriz, iran sh. alaei department of nuclear physics, faculty of physics, university of tabriz, iran

background: the existence of some radionuclides in soil and some building materials produce a β-γ radiation field, which in some regions the exposure of these radionuclides to human is high. materials and methods: the air-absorbed dose, indoor and outdoor annual effective dose of soil and some building material samples (ceramic, granite, gypsum, etc.). the samples were collected from 35 differe...

Journal: :iranian journal of radiation research 0
j. ferdous health physics division, atomic energy centre, dhaka, bangladesh a. begum health physics division, atomic energy centre, dhaka, bangladesh a. islam health physics division, atomic energy centre, dhaka, bangladesh

background: the concentrations and distributions of natural and anthropogenic radioactive materials in soils of the site of rooppur nuclear power plant (rnpp) were investigated with the aim of evaluating the environmental radioactivity and radiation hazard. materials and methods: soil samples were collected from 40 locations in and around the proposed site of rooppur power plant and determined ...

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