Portable type radon emanation and thorium emanation detector
The technology of a radon thoron jet and a detection device is applied in the fields of occupational health and air quality detection, and can solve the problems of long sampling period, accurate sampling duration, estimation deviation and the like
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[0026] Such as figure 1 As shown, the portable radon thoron detection device 100 of the embodiment of the present invention generally includes a detection chamber for collecting specified ambient gas and facilitating its diffusion, and a sampling cavity 10 for sampling and analyzing air is arranged in the detection chamber and a The exhaust cavity 20 that the analyzed gas is discharged; the side wall of the sampling cavity 10 is provided with an air inlet 11 for inhaling sampling air, and the side wall of the exhaust cavity 20 is provided with an air discharge port 21; in the sampling cavity 10 is installed with a filter part 31 between the sampling chamber 10 and the exhaust chamber 20 for retaining radon or thoron combined state daughters, and is installed in the sampling chamber 10 at a position opposite to the exhaust chamber 20, The sampling part 30 is used for measuring the track density of alpha particles emitted by radon daughters or thoron daughters.
[0027] This em...
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