Results 241 to 250 of about 1,308,491 (270)
Some of the next articles are maybe not open access.
Applied Radiation and Isotopes
In the present study, the emanation coefficient was calculated for different types of building materials using active and passive methods. Active measurement was carried out using a scintillation detector connected to the sample containing a small chamber (volume ∼ 1582.5 c.c.) for continuous measurement of approx. 240 h. The observed growth curves for
Abhishek Joshi +7 more
openaire +2 more sources
In the present study, the emanation coefficient was calculated for different types of building materials using active and passive methods. Active measurement was carried out using a scintillation detector connected to the sample containing a small chamber (volume ∼ 1582.5 c.c.) for continuous measurement of approx. 240 h. The observed growth curves for
Abhishek Joshi +7 more
openaire +2 more sources
Two ways of determining the 222Rn emanation coefficient.
Health physics, 1989The purpose of the present work was to determine the 222 Rn emanation coefficient in two ways using one series of measurements of 222 Rn concentration growth in an emanation chamber containing a sample of a material. In each method, different features of the material and different values obtained in the experiment were utilized.
openaire +1 more source
Building and Environment, 2018
Abstract The radon diffusion coefficient and the free radon production rate are important parameters for used to describe the migration of radon in porous emanation media. However, the method currently used to determine these two parameters is complicated.
Yong-jun Ye +4 more
openaire +1 more source
Abstract The radon diffusion coefficient and the free radon production rate are important parameters for used to describe the migration of radon in porous emanation media. However, the method currently used to determine these two parameters is complicated.
Yong-jun Ye +4 more
openaire +1 more source
Radiation Physics and Chemistry, 1998
Abstract Radon alpha-activities per unit volume have been measured inside and outside different building material samples by using CR-39 and LR-115 type II solid state nuclear track detectors (SSNTD). Radon emanation coefficients of the studied building materials have been evaluated.
M.A. Misdaq, H. Khajmi, A. Ktata
openaire +1 more source
Abstract Radon alpha-activities per unit volume have been measured inside and outside different building material samples by using CR-39 and LR-115 type II solid state nuclear track detectors (SSNTD). Radon emanation coefficients of the studied building materials have been evaluated.
M.A. Misdaq, H. Khajmi, A. Ktata
openaire +1 more source
Journal of Radioanalytical and Nuclear Chemistry, 2013
Wasted petroleum, scale and sludge, samples associated with petroleum industries have elevated level of radionuclides concentrations which increase the radiation dose received to the workers. Radon concentration, emanation coefficient and exhalation rate give good information about the radioactivity levels.
openaire +1 more source
Wasted petroleum, scale and sludge, samples associated with petroleum industries have elevated level of radionuclides concentrations which increase the radiation dose received to the workers. Radon concentration, emanation coefficient and exhalation rate give good information about the radioactivity levels.
openaire +1 more source
Radiochimica Acta, 2019
Abstract It is important to study the behavior of recoiling radon atoms 222Rn after decay of parent 226Ra and the effect of parameters on their access to the surrounding medium. The present study was carried out using CR-39 detector to study the effect of grain size on the correlation between surface and mass exhalation rates and the ...
openaire +1 more source
Abstract It is important to study the behavior of recoiling radon atoms 222Rn after decay of parent 226Ra and the effect of parameters on their access to the surrounding medium. The present study was carried out using CR-39 detector to study the effect of grain size on the correlation between surface and mass exhalation rates and the ...
openaire +1 more source
Health Physics, 1987
Alkaline circuit and mixed, acid and alkaline circuit U mill tailings sampled at an inactive mill site near Monticello, UT, and tailings from an active, acid-leach U mill were separated into particle-size fractions ranging from +10 mesh to -325 mesh by dry and wet separation techniques.
openaire +2 more sources
Alkaline circuit and mixed, acid and alkaline circuit U mill tailings sampled at an inactive mill site near Monticello, UT, and tailings from an active, acid-leach U mill were separated into particle-size fractions ranging from +10 mesh to -325 mesh by dry and wet separation techniques.
openaire +2 more sources
Radon Emanation Coefficients of Some Egyptian Rocks
Journal of Radiation and Nuclear Applications, 2019Y. A. Abdel-Razek +4 more
openaire +1 more source
The Effects of Some Soil Characteristics on Radon Emanation and Diffusion
Journal of Environmental Radioactivity, 2020Huynh Nguyen Phong Thu +1 more
exaly