Method for measuring precipitation rate of radon
A technology of radon exhalation rate and measuring room, which is applied in the field of nuclear radiation detection, can solve the problems of low radon exhalation rate, and achieve the effects of improving reliability, reducing cost, and accurate radon exhalation rate
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[0048] Embodiment: a method for measuring radon exhalation rate, which includes a measurement process and a calculation process.
[0049] 1. Measurement process:
[0050] Such as figure 1 , figure 2 As shown, buckle the radon hood 5 on the surface of the medium to be measured, or put the medium into the collection chamber of the radon hood, wherein figure 1 It is a schematic diagram of the measurement process of the surface of the medium, figure 2 It is a schematic diagram of the measurement process of particulate matter 8 or massive 7 substances. Because radon atoms in the medium escape from the surface and enter the collection chamber of the radon hood 5 under the action of diffusion and seepage, the radon concentration in the collection chamber of the radon hood 5 changes. Pump 6 is pumped into measurement chamber 2 after the radon in the collection chamber of radon hood 5 is filtered through drying pipe 4 and filter membrane 3 at a constant flow rate, and the flow ...
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