Results 11 to 20 of about 3,723 (222)

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

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

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

Radioactivity and radon emanation fraction of the granites sampled at Misasa and Badgastein [PDF]

open access: yes, 2008
The chemical composition was analyzed and the radioactivity, radon exhalation rate and emanation fraction were measured to investigate the characteristics of the granites sampled at Misasa and Badgastein, world famous for radon therapy.
Akihiro Sakoda   +14 more
core   +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

Real-time setup to measure radon emission during rock deformation. Implications for geochemical surveillance [PDF]

open access: yes, 2015
Laboratory experiments can represent a valid approach to unravel the complex interplay between the geochemical behaviour of radon and rock deformation mechanisms.
Castelluccio, M.   +4 more
core   +3 more sources

EXPERIMENTAL TECHNIQUE TO MEASURE THORON GENERATION RATE OF BUILDING MATERIAL SAMPLES USING RAD7 DETECTOR [PDF]

open access: yes, 2013
Thoron (220Rn) is the second most abundant radon isotope in our living environment. In some dwellings it is present in significant amount which calls for its identification and remediation. Indoor thoron originates mainly from building materials. In this
Csige, István   +2 more
core   +1 more source

The imprint of thermally induced devolatilization phenomena on radon signal. Implications for the geochemical survey in volcanic areas [PDF]

open access: yes, 2017
Thermal gradients due to magma dynamics in active volcanic areas may affect the emanating power of the substrate and the background level of radon signal.
Galli, Gianfranco   +4 more
core   +1 more source

Exploring atmospheric radon with airborne gamma-ray spectroscopy [PDF]

open access: yes, 2017
$^{222}$Rn is a noble radioactive gas produced along the $^{238}$U decay chain, which is present in the majority of soils and rocks. As $^{222}$Rn is the most relevant source of natural background radiation, understanding its distribution in the ...
Albéri, Matteo   +6 more
core   +2 more sources

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