Measurement apparatus of radon exhalation rate and measurement method thereof

Abstract

The invention provides a measurement apparatus of a radon exhalation rate and a measurement method thereof and belongs to the nuclear radiation detection technology field. A box body of a gas generation apparatus is filled with water. An upper end of the box body is connected to a water inlet pipe. A lower end of the box body is connected to a water outlet pipe. An arc groove whose bottom portion is cooperated with an outer wall of a test piece is immersed in the box body. A liquid coupling agent is arranged in the arc groove. The test piece is horizontally placed in the arc groove. Two ends of the test piece are sealed by sealing plates. An ultrasonic device comprises an ultrasonic generator, a control switch and a plurality of ultrasonic vibrators. The ultrasonic vibrators are uniformly arranged on a bottom surface of the box body. The control switch is electrically connected to the ultrasonic vibrators and the ultrasonic generator through a cable. An external-connection accessory comprises an emanometer, a first branch pipe, a second branch pipe, the emanometer, a pressure meter, a pressure pump and a sucking pump. The apparatus is integrated with the ultrasonic device, the emanometer, a pressure generation device and the like. Pressure and an ultrasonic frequency are controllable and adjustable. Operability of the whole set of apparatus is high, reliability is high too and usage is convenient.

Description

technical field [0001] The invention belongs to the technical field of nuclear radiation detection, and in particular relates to a measuring device and a measuring method for radon exhalation rate. Background technique [0002] Radon and its progeny are the main natural radioactive sources that endanger human health, and uranium tailings are an important source of radon, and the radon produced by uranium tailings can enter the atmosphere through migration. If the concentration of radon in the air is too high, it will cause human upper respiratory tract and lung damage, and even cause lung cancer. Therefore, the radiation protection of radon has been highly valued by the governments of various countries. The United Nations has established the Scientific Committee on the Effects of Atomic Radiation and regularly submits research reports. Since the research on the mechanism of radon precipitation is the basis of radon radiation protection, many scientific research institutions...

AI Technical Summary

Problems solved by technology

[0005] There are some limitations in the research on the influence of different ventilation pressures and ultrasonic vibrations on radon precipitation. There is no quantitative study on the influence of relative pressure and ultrasonic frequency on radon precipitation.

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