Abstract
In view of the stability of gas radon observation and the water-gas ratio in the field of earthquake, a new radon observation system is designed and experimentally studied. Based on the principle of hydromechanics, a constant-current device is designed to control the sampling flow. Radon gas bubbles produced within the gas degassing-gathering device are transmitted. The AlphaPUPM is used to control bubble gas flow, and the radon radioactive activity is tested by AlphaGUARD PQ2000 emanometer. The above equipmental devices constitute a whole new type of gas radon observation system. The control variable method is used to carry out the experiment. The experimental results show that, within a certain range, the measured radon value is negatively correlated with the bubbling gas flow, and increases with the increase of the sampling water flow. The radon observation value is linearly positively correlated with the water-gas ratio, and there is a certain variation limit range between them, which provides a reference for the verification and quantification of seismic radon observation anomalies.
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