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Radon - Springer Nature

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Last Updated: 20 June 2022

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Support Theorem for the Radon–Kipriyanov K_𝛾-Transform

"The Radon conversion of functions of variables related to spherical symmetry, namely, the Radon K __udefe transform" is a special case of a more general change, namely, the Radonu2013Kipriyanov transform K _udefe. " This conversion corresponds to a weight multi-index ud835 >udefe= and coincides with the Radon conversion, if all components of the multi-index ud835 are natural numbers," says this transformer.

Source link: https://doi.org/10.1007/s10958-022-05962-1


Novel liquid scintillator radon detector

"The liquid scintillator is one of the detector techniques used to detect radon in the environment. However, radon measurement using a liquid scintillator can be difficult, such as independent manual operation and lengthy measurement periods. Methods and Results We propose a liquid scintillator probe and photomultiplier tube for rapid determination of radon.

Source link: https://doi.org/10.1007/s41605-022-00322-8


Effect of simulated earthquake loading on radon exhalation from uranium tailings dam

"Uranium tailings sand will continuously release radon-222. " When an earthquake is simulateled on the uranium tailings dam with a shaking table test and measurement of change in radon concentration, it is found that the earthquake caused micro-fissures in the uranium tailings dam, which aggregate to form fractures. The radon concentration will rise dramatically during the process, as will the radon exhalation rate. ".

Source link: https://doi.org/10.1007/s11356-022-20758-1


A comprehensive study of radon in drinking waters of Hanumangarh district and the assessment of resulting dose to local population

"Study of radon concentration in drinking water from various sources used across the Hanumangarh district of Rajasthan, India, was carried out by a scintillation-based detector. With an average value of 0. 12 to 2. 07 Bq/l and a maximum deviation of 0. 55 Bq/l, surface water samples varied from 1. 12 to 2. 07 Bq/l, with an average value of 0. 8 Bq/l and a standard deviation of 2. 24 Bq/l.

Source link: https://doi.org/10.1007/s10653-022-01304-x


Radon Flux Density Measurement on Rock Surfaces

"The radon hazard of a building site is assessed by determining the radon flux density. " The amount of radon released from the surface is determined by the type of rock, according to some researchers involved in radon research. The results of radon flux density measurements carried out on the surface of common rocks are published in this article.

Source link: https://doi.org/10.1007/s10512-022-00860-w


Evaluation of soil-gas radon concentrations from different geological units with varying strata in a crystalline basement complex of southwestern Nigeria

"The aim of this research is to determine the variation of soil-gas radon concentrations from different rock formations in Ogbomoso, southwestern N. . . . ia. " The radon concentrations at five geological domains in Ogbomoso are determined with respect to depth. Based on the International Commission on Radiological Protection's (ICR)'s recommendation, the overall soil-gas radon concentrations in Ogbomoso varied from 0. 06 to 26. 5 kBq/m3, the highest level in Ogbomoso, which is within the natural limit of 0. 4 to 40 kBq/m3, which is within the recommended limit of 0. 4 to 40 kBq/m3. For the first inferential hypothesis, an F-ratio of 6. 989 and a p-value of 0. 001 were obtained, while a p-value of 0. 076 were calculated for the second inferential hypothesis using the ANOVA technique. At 80 cm and level 0 at other depths, the pollution index in Ogbomoso is at level 1 at 80 cm and level 0 at other levels. ".

Source link: https://doi.org/10.1007/s10661-022-10173-x


Determination of terrestrial γ-radiation dose rate and soil radon concentration in a river region of Southern China

"An investigation into the terrestrial u03b3 dose rate and soil Rn determination was carried out in a River region in Southern China to monitor the natural radiation level. " According to the respective, the mean u03b3 dose rate and soil Rn concentration were determined to be 100 u00b1 40 nGy, u22121 and 4000 Bq mu22123.

Source link: https://doi.org/10.1007/s10967-022-08311-3


Support theorems for Funk-type isodistant Radon transforms on constant curvature spaces

"A connected maximal submanifold in a constant curvature space is called isodistant" if its points are within distances from a totally geodesic codimension 1 is measured. " Using the canonical method, the isodistant Radon transform of a suitable real function f on a continuous curvature space is the job on the isodistant Radon transforms into a useful real function f on a constant curvature space. The isodistant Radon conversion, which is a limitation of the isodistant Radon conversion, is highly influenced by the completely geodesic Radon change, which is a restriction of the isodistant Radon revolution, is highly influenced on several key classes of applications.

Source link: https://doi.org/10.1007/s10231-021-01152-z


Preparation and characterization of a high-efficiency radon adsorbing material based on activated carbon modified by water immersion and freeze–thaw

"Activated carbon has been modified by water immersion and freeze cycles in this paper to further improve its radon adsorption capacity. " After five repeated radon adsorption cycles, the most effective radon adsorption coefficient was up to 24%, with thawing at 50 °C and thawing at 50 b0C and thawing at 50 b0C. Water immersion and freeze-thawing could effectively increase the microporous volume, specific surface area, and radon adsorption capacity of activated carbon, according to the author.

Source link: https://doi.org/10.1007/s10967-022-08345-7


Radon exhalation potential and natural radioactivity in soil collected from the surrounding area of a thermal power plant

"Objective of the study is to find out if there is any excess radioactivity in the soil as a result of long-term accumulation of fly ash on the soil surface by comparing to data from neighboring regions," says literature. If used for house building, radon concentrations determined by these soil samples can be quickly determined by a radon exhalation-based scheme to quickly determine the indoor radon concentration contributed by these soil samples. Bq12121 hu22121, and 6 obb1 2 kB exhalation rates were 50 percent, respectively. According to 91 nGyhu22121 and 0. 11 mSv, respectively, the annual effective dose outdoors with one standard deviation for the adult population and an average absorbed gamma dose rate and annual effective dose outdoors with one standard deviation is found to be 91 u00b1 0. 01 mSv.

Source link: https://doi.org/10.1007/s10967-022-08298-x

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions