Analysis of Environmental Gamma-Ray Intensity Increase Due to Precipitation Using EGS4 Monte Carlo Simulation Code
نویسنده
چکیده
The EGS4 (Electron Gamma Shower, Version 4) Monte Carlo simulation code is used to calculate the conversion factors of the radon daughter quantity accumulated on the ground surface to the environmental gamma radiation dose rate with considering the actual geographical conditions. When the precipitation rate is low, the time variation of the environmental gamma radiation dose rate estimated from the measured radon daughter content of precipitation and the amount of precipitation by using these conversion factors corresponds fairly well with the measured increase of it. It is confirmed that this method is useful for removing the effect of precipitation from the observed fluctuation of the environmental gamma-ray intensity and rising the reliability of the practical monitoring of it.
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