نتایج جستجو برای: radon emanometry

تعداد نتایج: 6960  

Journal: :iranian journal of medical physics 0

introduction cr-39 detectors are widely used for radon and progeny measurement in the air. in this paper, using the monte carlo simulation, the possibility of using the cr-39 for direct measurement of radon and progeny in water is investigated. materials and methods assuming the random position and angle of alpha particle emitted by radon and progeny, alpha energy and angular spectrum that arri...

Journal: :journal of biomedical physics and engineering 0
m. haghani department of medical physics and medical engineering, school of medicine, shiraz university of medical sciences, shiraz, iran s. m. j. mortazavi the center for radiological research, shiraz university of medical sciences, shiraz, iran r. faghihi radiation research center, mechanical engineering school, shiraz university, shiraz, iran s. mehdizadeh radiation research center, mechanical engineering school, shiraz university, shiraz, iran j. moradgholi ph.d student of nanomaterials, department of materials engineering, isfahan university of technology, isfahan 84156-83111, iran l. darvish master student, student research committee, school of medicine, shiraz university of medical sciences, shiraz, iran

background: nowadays, extensive technological advancements have made it possible to use nanopaints which show exciting properties. in ir iran excessive radon levels (up to 3700 bq m–3) have been reported in homes located in radon prone areas. over the past decades, concerns have been raised about the risk posed by resi- dential radon exposure. objective: this study aims at investigating the eff...

2013
Antonio Neri Sherri L. Stewart William Angell

INTRODUCTION Radon is the second leading cause of lung cancer among smokers and the leading cause among nonsmokers. The US Environmental Protection Agency recommends that every home be tested for radon. Comprehensive Cancer Control (CCC) programs develop cancer coalitions that coordinate funding and resources to focus on cancer activities that are recorded in cancer plans. Radon tests, remediat...

Journal: :iranian journal of radiation research 0
k. hadad department of nuclear engineering, shiraz university, 7134554115, shiraz, iran m.r. hakimdavoud shiraz university nuclear safety research center, 7134554115, shiraz, iran m. hashemi-tilehnoee department of engineering, aliabad katoul branch, islamic azad university, aliabad katoul, golestan, iran

background: while in the open air the amount of radon gas is very small and does not pose a health risk, in confined spaces, radon can accumulate to relatively high levels and become a health hazard. exposure to high levels of radon has been associated with an increased risk of lung cancer, depending on the time length of exposure. radon level in dwelling of shiraz with 1,200,000 populations ha...

ژورنال: سنجش و ایمنی پرتو 2020

The origins of radon gas are the amount of uranium decay in the soil that is released into space and through the interior gaps of  buildings. Radon can enter the respiratory system and cause radiation hazards. Recently research has identified Radon as the second leading cause of lung cancer after cigarette smoking. The indoor concentration of Radon progeny is mentioned as an important issue reg...

E. Fathi-Pour J. Moradgholi L. Ansari L. Darvish M. Haghani M. R. Ghanbar-pour R. Faghihi S. M. J. Mortazavi S. Mehdizadeh

Background: Nowadays, extensive technological advancements have made it possible to use nanopaints which show exciting properties. In IR Iran excessive radon levels (up to 3700 Bq m–3) have been reported in homes located in radon prone areas. Over the past decades, concerns have been raised about the risk posed by resi- dential radon exposure.Objective: This study aims at investigating the ef...

Journal: :iranian journal of medical physics 0
shila banari bahnamiri physics department, faculty of science, ferdowsi university of mashhad, mashhad, iran

introduction the potential hazards posed by exposure to radiation from radon have been of great concern worldwide, since it is especially associated with increased risk of lung cancer. some radioisotopes of radon progeny deposited in the human lungs emit β particles followed by the γ rays. while γ rays are comparatively less damaging to the respiratory system than α and β particles, it is the p...

A. Mortazavi, E.B. Saion, H. Mozdarani, H.M. Kamari, L.A. Mehdipour, M.R. Kardan, R. Faghihi, S. Mehdizadeh, S.A. Aziz, S.M.J. Mortazavi,

Background: In Iran, architectures are often unaware of the risk of radon inhalation and how to reduce radon levels. Furthermore, radon considerations are not implemented in construction methods, construction materials and building utilization by regulatory authorities. Materials and Methods: In this study after reviewing the meteorological changes of Ramsar over the past 50 years (1955-2005), ...

ژورنال: سلامت و محیط زیست 2019

Background and Objective: Radon gas is one of the environmental risk factors which can increase the risk of lung cancer and it is well known as the second-leading cause of lung cancer after smoking. The aim of the present study was to investigate indoor radon gas concentration in residential and public environments of Nourabad Mammasani city and to estimate the effective dose due to radon expos...

2015
Ellen J. Hahn Yevgeniya Gokun William M. Andrews Bethany L. Overfield Heather Robertson Amanda Wiggins Mary Kay Rayens

OBJECTIVE Exposure to radon is associated with approximately 10% of U.S. lung cancer cases. Geologic rock units have varying concentrations of uranium, producing fluctuating amounts of radon. This exploratory study examined the spatial and statistical associations between radon values and geological formations to illustrate potential population-level lung cancer risk from radon exposure. METH...

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