Results 11 to 20 of about 571 (174)

Radon Concentrations and Radon Exhalation Rate in Some Samples of Fertilizers Used in Iraq

open access: yesJournal of Kufa-Physics, 2017
In present study, radon concentrations were measured for  some fertilizers samples . These samples were collected from local markets of Najaf province, Iraq.
Azhar S. Alaboodi
doaj   +2 more sources

222Rn Exhalation Rates from Some Granite and Marble Used in Korea: Preliminary Study

open access: yesAtmosphere, 2021
The objective of this study was to establish a test method for assessing radon exhalation rates from building materials considering radon related environmental policy and research in Korea.
Hyewon Lee   +3 more
doaj   +1 more source

Experimental Study on Unsteady Radon Exhalation from the Overburden Layer of the Uranium Mill Tailings Pond under Rainfall

open access: yesScience and Technology of Nuclear Installations, 2022
In order to find out radon reduction performance of the overburden layer on uranium mill tailings (UMTs) pond beach surface after rainfall, the rainfall simulation experiment of the overburden layer was carried out with the self-developed equipment ...
Hong Wang   +6 more
doaj   +1 more source

RADON INHALATION EXPERIMENTS TO TEST RADON EXHALATION KINETICS

open access: yesRadiation Protection Dosimetry, 2020
Abstract Three experiments were conducted with a volunteer to test the kinetics of the 222Rn exhalation after a short­time exposure to an elevated 222Rn air concentration. Radon concentration in an exhaled air was measured, complemented by whole body counting of 222Rn decay products in a body.
P, Fojtík   +8 more
openaire   +2 more sources

Fuzzy optimization of radon reduction by ventilation system in uranium mine

open access: yesNuclear Engineering and Technology, 2023
Radon and radon progeny being natural radioactive pollutants, seriously affect the health of uranium miners. Radon reduction by ventilation is an essential means to improve the working environment. Firstly, the relational model is built between the radon
Meirong Zhang, Jianyong Dai
doaj   +1 more source

Sources of Radon and its Measurement Techniques in Underground Uranium Mines – An Overview

open access: yesJournal of Sustainable Mining, 2014
Purpose: This study aims to identify the potential sources of radon exhalation and its measurement in underground uranium mines to control the radiation levels within safe limits and protect miners from radiation hazards. Methods: An extensive literature
Patitapaban Sahu   +2 more
doaj   +1 more source

Radon Exhalation Patterns in A Dead-end Tunnel

open access: yesMATEC Web of Conferences, 2016
The regularity of radon exhalation rate in the over-broken granite tunnel is susceptible to weather conditions and ventilation styles. Based on the calculation model of radon exhalation in tunnel, some experiments have been carried out to analyze the ...
Wang Shu Guang   +3 more
doaj   +1 more source

Radon exhalation rate and radon activity in soils of riverine environs of South Karnataka

open access: yesRadiation Protection and Environment, 2018
In the present study, sealed “can technique” using solid-state nuclear track detector (LR-115) films was employed to measure the radon exhalation rate and radium concentration in soil samples of Cauvery river environment.
C S Kaliprasad, Y Narayana
doaj   +1 more source

Effect on Radon Exhalation Rate Due to Cracks in Concrete

open access: yesNordic Concrete Research, 2019
The second largest cause of lung cancer in the World is related to radon (222Rn) and its progenies in our environment. Building materials, such as concrete, contribute to the production of radon gas through the natural decay of 238U from its constituents.
Döse Magnus, Silfwerbrand Johan
doaj   +1 more source

Investigation of the influence of chamber construction parameters on radon exhalation rate

open access: yesNukleonika, 2016
Radon exhalation from ground is a process dependent on the emanation and migration of radon through ambient air. Most studies on radon exhalation from soil were performed regarding the influence of meteorological and soil parameters.
Kozłowska Beata   +4 more
doaj   +1 more source

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