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279  Articles
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A two-dimensional numerical model for radon transport based on the finite difference time domain (FDTD) method have been developed. The model is governed by the radon transport equation taking into account the mechanisms of diffusion, advection, and decay... see more

Study aimed to design and manufacture two biosensors, namely BIOS-I and BIOS-II, for 222Rn and Pb+2 measurements in building materials and soil samples. For comparison, the conventional detectors of RAD7 and CR-39 were used. The biosensor material used wa... see more

The Hermite numerical interpolation method used to estimate and predict the radon and radium concentrations, from some of the experimental measurements made on the soil samples of the Bartella region in Iraq. The results obtained from deductible mathemati... see more

Indoor radon concentrations were measured in dwellings of the earthquake-affected areas of Kathmandu valley, Gorkha, and Sindhupalchowk districts of Nepal using passive radon dosimeter LR115, a Solid State Nuclear Track Detector, SSNTD. The radon concentr... see more

Konsentrasi radon dapat mempengaruhi kondisi air yang biasa dikonsumsi masyarakat untuk kebutuhan sehari-hari. Hal ini berpotensi terhadap resiko kesehatan termasuk resiko kanker. Pada penelitian ini sampel didapatkan dari sumber air di berbagai kampung d... see more

One of the methods used in geothermal exploration is to take advantage of the presence of radon in nature. In this study, we measured radon and thoron in Papandayan Volcano area, which was assumed to have a high geothermal potential. Measurement... see more

ResumenEl isótopo del radón Rn-222, aparece en la naturaleza como producto de la desintegración natural del radio-226, común en la corteza terrestre. El potencial de exhalación de un terreno viene definido, por un lado, por el contenido de radio del sustr... see more

In this work, an efficient algorithm, using a finite-difference time-domain (FDTD) technique, is proposed for modeling the variation of radon concentration as a function of soil structure parameters and vice versa. The development of the FDTD model is bas... see more

Radon (222Rn) is a radioactive gas, from the 238U decay chain, that contributes in large part of the natural radiation dose to which humans are exposed. Radon is the second cause of lung cancer after tobacco. The US-EPA considers a concentration of 148 Bq... see more

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