نتایج جستجو برای: high natural radiation areas

تعداد نتایج: 2925709  

Hamed Babapour Maryam Shahidi Tayyeb Allahverdi Pourfallah,

Introduction The exposure of human beings to ionizing radiation from natural sources is a continuing and inescapable feature of life on earth. For most individuals, this exposure exceeds that from all man-made sources combined. Materials and Methods In this study, the annual effective dose in high level environmental background radiation areas (HLEBRAs) of northern city of Ramsar in Iran was de...

Ali Shabestani Monfared John Kameron Mehrangiz Amiri

  Today, nuclear medicine has rapidly been developed so that in some cases, plays a unique role in diagnosis but unfortunalty in spite of diagnostic and therapeutic advantages, the term “NUCLEAR” can induce worries in patients and society. In this article, base on new documents, we intend to show that this worries has no scientific basis. To produce a realistic view, ...

Ali Akbar Salehi Kazem Naddafi Masud Yunesian Mohammad Reza Deevband, Mohammad Reza Kardan Molood Gooniband Shooshtari Nasrin Fathabadi, Ramin Nabizadeh Nodehi

Introduction: Human beings are naturally exposed to ionizing radiation in any environment. There are two main contributors to radiation exposures from natural sources: cosmic rays, Cosmo genic radionuclides, and radioactive nuclides that originated in the earth's crust. According to the latest data provided by the United Nations Scientific Committee on the Effects of Atomic Rad...

A. Shabestani Monfared, M. Amiri, R. Abdi,

Background: The effect of natural background radiation on health is still controversial. However, it is clear that it depends on the dose received by the population. The estimation of external natural background gamma rays received by the population of Caspian coastal provinces in the northern part of Iran was the main goal of this study. Materials and Methods: Gamma rays was measured ...

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده ادبیات و علوم انسانی 1394

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Journal: :International Journal of Environmental Research and Public Health 2021

Journal: :iranian journal of radiation research 0
s.m.j. mortazavi department of medical physics and medical engineering, shiraz university of medical sciences, shiraz, iran a. niroomand-rad georgetown university, washington dc 20007, usa h. mozdarani department of medical genetics, faculty of medicine, tarbiat modares university, tehran, iran p. roshan-shomal the center for research in radiation sciences (crrs), shiraz university of medical sciences, shiraz, iran s.m.t. razavi-toosi department of physiology, school of medicine, tehran university of medical sciences, tehran, iran h. zarghani department of medical physics, school of medicine, mashhad university of medical sciences, mashhad, iran

background: in some areas of ramsar, a city in northern iran, residents receive a much higher annual radiation exposure than is permitted for radiation workers. induction of adaptive response in residents of ramsar has been reported previously. in this study induction of such a response in short term exposure to high background levels of gamma radiation is investigated. materials and methods: f...

G.H Fallah Mohammadi, M.B. Tavakoli, Z. Fallah Mohammadi, Z. Shaneh,

Background: High level radiation areas have been recognized on various parts of the earth. Mahallat hot spring region is one of these areas. Study of exposure in these areas can be helpful in investigating the effects of ionizing radiation. Internal and external exposure to the staff was studied. Materials and Methods: Used materials and instruments include: RSS-112 ionizing chamber fo...

Journal: :Journal of Ayub Medical College, Abbottabad : JAMC 2012
Y Molaie A Latifynia A Kalamzadeh T Abofazeli M Nuraie N Khansarii

BACKGROUND Iran is considered as one of the countries which are located in high radiation area. Ramssar contains natural radioactive sources (Uranium-238) that can produce Radium-226 with high solubility and Radon gas with ability to fuse in dirt, soil, and water in its decay chain. Radioactive rays can produce free radicals with a short life time but high energy, which lead to changes structur...

Hossein Mozdarani, S.M.J. Mortazavi,

According to the report published by the United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) in 2000, Ramsar city in northern Iran, has some inhabited areas with the highest known natural background radiation levels in the world (1). The annual radiation absorbed dose in high background radiation areas (HBRAs) of Ramsar is extraordinary high, reaching 260 mSv that i...

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