نتایج جستجو برای: average annual effective dose

تعداد نتایج: 1378360  

Journal: :iranian journal of radiation research 0
f.k. görür abant izzet baysal university, faculty of sciences and arts, department of physics, bolu 14280, turkey r. keser recep tayyip erdogan university, faculty of sciences and arts, department of physics, 53100, rize, turkey n. akçay recep tayyip erdogan university, faculty of sciences and arts, department of physics, 53100, rize, turkey s. dizman recep tayyip erdogan university, faculty of sciences and arts, department of physics, 53100, rize, turkey s. dizman recep tayyip erdogan university, faculty of sciences and arts, department of physics, 53100, rize, turkey

background: tea is one of the most popular beverages all over the world which is prepared from the leaves of a shrub camellia sinensis. eastern black sea region of turkey which account for around 100% of all tea production in turkey was among the areas contaminated by chernobyl accident. materials and methods: a comprehensive study was planned and carried out to determine the level of gross α a...

F.K. Görür, R. Keser, S. Dizman,

Background: Turkey, especially the northern part of it, was one of the countries which were contaminated by the Chernobyl accident.  Rize is a city located in the Northeastern district of Turkey which was heavily influenced by the Chernobyl nuclear accident. Materials and Methods: In this study, the activity concentrations of natural (226Ra, 232Th, 40K) and artificial (137Cs) were measurem...

Journal: :iranian journal of radiation research 0
m.t. bahreyni toossi medical physics research center, mashhad university of medical sciences, mashhad, iran sh. bayani medical physics research center, mashhad university of medical sciences, mashhad, iran m. yarahmadi medical school, kurdistan university of medical sciences, sanandaj, iran a. aghamir razavi hospital, mashhad, iran a. jomehzadeh rafsanjan university of medical sciences, rafsanjan, iran m. hagh parast hormozgan university of medical sciences, bandarabbas, iran

background: since 1996 the assessment of environmental gamma radiation dose in residential areas of iranian towns and cities has been accomplished for 10 counties. as a practical method and based on the results of a pilot study, in order to attribute the final results to the whole residential area of a town five stations were selected for every town. the location of individual station was studi...

Journal: :iranian journal of environmental sciences 0
laith najam department of physics, college of science, university of mosul, mosul, iraq mahmood karim department of physics, college of education, al-mustansiriyah university, baghdad, iraq taghreed hameed department of physics, college of education, al-mustansiriyah university, baghdad, iraq

the present paper measures natural radioactivity in different areas of wassit governorate, using (hpge) detector. gamma spectrum analysis for each sample along with caululated specific activity show that the average concentrations of u-238, th-232, and k-40 have been 19.420±4.7 bq/kg, 18.487±5.05 bq/kg, and 204.266±46.9 bq/kg respectively, which is lower than the worldwide average value. while ...

F. Bouzarjomehri, M.H Ehrampoush,

 ABSTRACTBackground: There are relatively rich uranium mines in regions of Saghand and Bafgh in Yazd province. This survey was carried out to provide a map of ambient gamma radiation of Yazd province and the probable effects of the existence of these mines on background radiation dose rates.Materials and Methods: The measurements of the outdoor and indoor–environmental exposures (including cosm...

ژورنال: پیاورد سلامت 2017
ایمانی, آرزو, موسوی انیجدان, سید حسین, میانجی, فریدون, پایدار, رضا, چنگیزی, وحید,

Background and Aim: Estimation of radon density  in underground centers is very important. Considering the use of high-energy medical accelerators, radiotherapy departments are usually located in underground floors. The aim of this study was to evaluate staff exposure to radon gas in these centers in Tehran in 2015-2016. Materials and Methods: This is a descriptive,  cross-sectional survey. In...

Introduction: Background radiation is originated from environmental radioactive sources cosmicandterrestrial.Materials distribution onsurface of the earth and height from sea level are not the same at various points.Absorbed dose caused by them were different at various points.In this research, Background radiation level inoutdoor different areas of Ilam province was measured and effective dose...

Journal: :iranian journal of radiation research 0
a. abbasi nuclear science and technology institute, (nsti), tehran, iran v. bashiry faculty of engineering, cyprus international university, nicosia, northern cyprus, mersin 10, turkey

background: radium-226 (226ra) is a product of the 238u radionuclide decay series that significantly incorporated into the human body through water intake. it can also potentially cause a series of health problems including cancers of the digestive system. radium-226 (226ra) is a product of the 238u radionuclide decay series that significantly incorporated into the human body through water inta...

Journal: :iranian journal of medical physics 0
hassan moladoust biochemistry & biophysics dept., faculty of medicine, guilan university of medical sciences, rasht, iran mohsen asadinezhad biochemistry & biophysics dept., faculty of medicine, guilan university of medical sciences, rasht, iran

introduction guilan is one of the provinces in north of iran, with population of 2,480,874 and a total area of ​​14,042 square kilometers. this study assesses the outdoor natural gamma dose rates in the air of 49 cities in guilan and calculates corresponding average annual effective dose. materials and methods a total of 260 different sample points measurements were carried out. the results inc...

F.K. Görür, N. Akçay, N. As, R. Keser, S. Dizman,

Background: Tea is one of the most popular beverages all over the world which is prepared from the leaves of a shrub camellia sinensis. Eastern Black Sea Region of Turkey which account for around 100% of all tea production in Turkey was among the areas contaminated by Chernobyl accident. Materials and Methods: A comprehensive study was planned and carried out to determine the level of ...

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