Results 181 to 190 of about 943 (203)

Measurement of the radon exhalation rate from the medium surface by tracing the radon concentration

Journal of Radioanalytical and Nuclear Chemistry, 2012
The paper will present a method based on the accumulation chamber technique for measuring of radon exhalation from the medium surface. A radon monitor traces the change of radon concentration in the accumulation chamber, and then the radon exhalation can be obtained accurately through linear fit.
Yanliang Tan, Detao Xiao
openaire   +1 more source

Influence of Humidity on Building Material's Radon Exhalation Rate

Applied Mechanics and Materials, 2013
In this paper, the humidity of building materials were controlled by adopting the inorganic salts saturated solutions, and the radon exhalation rate of building materials were measured by the active carbon method which under the different humidity conditions.
Dong Ji, Zhong Yang Xu, Yun Tao Zhang
openaire   +1 more source

Measurements of radon exhalation rate for monitoring cement hydration

Materials and Structures, 2006
The paper deals with one of the physical methods, which can be used for monitoring hydration of cementitious materials: the radon exhalation method. Experiments with two types of hydrating cement paste (made with water to cement ratios of 0.25 and 0.33) are described. The kinetics of shrinkage and hydration heat development are discussed.
openaire   +1 more source

Radioactivity and Radon Exhalation Rate of Some Granite Building Materials in Türkiye

Applied Radiation and Isotopes
The presence of elevated concentrations of naturally occurring radionuclides in building materials can lead to the generation of high dose rates within indoor environments, resulting from both internal and external exposure pathways. The internal dose is mainly attributable to radon exhalation from the building materials, whereas the external dose is a
openaire   +2 more sources

Experimental study on the mechanism of radon exhalation during coal spontaneous combustion in goaf

Tunnelling and Underground Space Technology, 2021
Cunbao Deng
exaly  

A study on the differences in radon exhalation of different lithologies at various depths and the factors influencing its distribution in northern Shaanxi, China

Science of the Total Environment, 2022
Jishi Geng, Qingmin Shi, Jianjun Hu
exaly  

Radon exhalation from temperature treated loess

Science of the Total Environment, 2022
Qiang Sun, Jishi Geng, Xusheng Yan
exaly  

Study on the characteristics of radon exhalation from rocks in coal fire area based on the evolution of pore structure

Science of the Total Environment, 2023
Jishi Geng, Liyun Tang
exaly  

Radon Concentrations in Soil Samples and Radon Exhalation Rates in Baghdad Governorate

Materials Focus, 2018
Hazim Louis Mansour, Nada Fathil Tawfiq, Mahmood Salim Karim, Nadir F. Habubi   +3 more
openaire   +1 more source

Influence of thoron on measurement results of radon exhalation rate

2012
Because of thoron exhalation, the measurement results of radon exhalation rate using a local still method is usually larger than the true value of radon flux rate of the monitored material surface. The influence of 216Po (ThA) on radon exhalation rate can be eliminated for sensitive radon monitors.
Ling, Q, Leung, Xiao, DT, Zhao, GZ
openaire   +1 more source