نتایج جستجو برای: radon exhalation rates

تعداد نتایج: 443161  

Introduction: Natural radioactivity in the soil is considered a major indicator of radiological contamination. Primordial radionuclides are the main source of natural radioactivity. Natural radioactivity transfers radionuclides into the environment and poses radiation hazards to people's health. Therefore, the present study aimed to determine the radon concentration an...

Journal: :iranian journal of radiation research 0
k. kant department of physics, kl mehta dayanand college for women, faridabad (haryana)-121 001, india s.b. upadhyay department of physics, b.s.a. college, mathura (u.p.), india r.g. sonkawade inter university accelerator centre, new delhi - 110 067, india s.k. chakarvarti department of applied physics, nit, kurukshetra – 136 119, india

abstract background: the radiological impact of the use of phosphate fertilizers in soil is due to the internal irradiation of the lung by the alpha particles, short lived radon-thoron progeny and the external irradiation of the body by gamma rays emitted from radionuclides in situ. this paper describes the results of gamma spectrometric measurements of the concentration of the natural radionuc...

K. Kant, R.G. Sonkawade, S.B. Upadhyay, S.K. Chakarvarti,

ABSTRACT Background: The radiological impact of the use of phosphate fertilizers in soil is due to the internal irradiation of the lung by the alpha particles, short lived radon-thoron progeny and the external irradiation of the body by gamma rays emitted from radionuclides in situ. This paper describes the results of gamma spectrometric measurements of the concentration ...

Journal: :Journal of environmental radioactivity 2017
Tibor Kovács Amin Shahrokhi Zoltán Sas Tamás Vigh János Somlai

The reuse of by-products and residue streams is an important topic due to environmental and financial aspects. Manganese clay is a residue of manganese ore processing and is generated in huge amounts. This residue may contain some radionuclides with elevated concentrations. In this study, the radon emanation features and the massic exhalation rate of the heat-treated manganese clay were determi...

2012
Mohamad S. Jaafar

This study aims to assess the environmental hazards from radon exhalation rate in the soil samples in selected locations in Iraqi Kurdistan, using passive (CR-39NTDs) and active (RAD7) detecting method. Radon concentration, effective radium content and radon exhalation rate were estimated in soil samples that collected at the depth level of 30 cm inside 124 houses. The results show that the ema...

Journal: :Brazilian Journal of Radiation Sciences 2019

2016
Beata Kozłowska Jadwiga Mazur Krzysztof Kozak Agata Walencik-Łata Błażej Baic

Radon (222Rn) is a naturally occurring radioactive gas that originates from the decay of radium (226Ra) in the primordial uranium (238U) decay series. As a noble gas, it easily migrates through inter-granular spaces; then, because of advection, diffusion and convection with other gasses or with water, it moves through fi ssures and faults until it reaches the outdoor atmosphere. Its half-life i...

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